adds header guards + move impl to proper file
This commit is contained in:
Adrien BAK
Adrien BAK
parent
e8c2f2ee3e
commit
1f6acc23fa
@ -39,551 +39,48 @@
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//
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//M*/
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#ifndef CV_SEAMLESS_CLONING_HPP___
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#define CV_SEAMLESS_CLONING_HPP___
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#include "precomp.hpp"
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#include "opencv2/photo.hpp"
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#include <iostream>
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#include <stdlib.h>
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#include <complex>
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#include "math.h"
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using namespace std;
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using namespace cv;
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#include <vector>
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class Cloning
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{
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public:
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void normal_clone(const Mat &I, const Mat &mask, const Mat &wmask, Mat &cloned, int num);
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void illum_change(Mat &I, Mat &mask, Mat &wmask, Mat &cloned, float alpha, float beta);
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void local_color_change(Mat &I, Mat &mask, Mat &wmask, Mat &cloned, float red_mul, float green_mul, float blue_mul);
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void texture_flatten(Mat &I, Mat &mask, Mat &wmask, double low_threshold, double high_threhold, int kernel_size, Mat &cloned);
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protected:
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vector <Mat> rgb_channel, rgbx_channel, rgby_channel, output;
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Mat grx, gry, sgx, sgy, srx32, sry32, grx32, gry32, smask, smask1;
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void init_var(const Mat &I, const Mat &wmask);
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void initialization(const Mat &I, const Mat &mask, const Mat &wmask);
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void scalar_product(Mat mat, float r, float g, float b);
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void array_product(Mat mat1, Mat mat2, Mat mat3);
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void poisson(const Mat &I, const Mat &gx, const Mat &gy, const Mat &sx, const Mat &sy);
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void evaluate(const Mat &I, const Mat &wmask, const Mat &cloned);
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void getGradientx(const Mat &img, Mat &gx);
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void getGradienty(const Mat &img, Mat &gy);
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void lapx(const Mat &img, Mat &gxx);
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void lapy(const Mat &img, Mat &gyy);
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void dst(double *mod_diff, double *sineTransform,int h,int w);
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void idst(double *mod_diff, double *sineTransform,int h,int w);
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void transpose(double *mat, double *mat_t,int h,int w);
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void solve(const Mat &img, double *mod_diff, Mat &result);
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void poisson_solver(const Mat &img, Mat &gxx , Mat &gyy, Mat &result);
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};
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void Cloning::getGradientx( const Mat &img, Mat &gx)
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{
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Mat kernel = Mat::zeros(1, 3, CV_8S);
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kernel.at<char>(0,2) = 1;
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kernel.at<char>(0,1) = -1;
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filter2D(img, gx, CV_32F, kernel);
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}
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void Cloning::getGradienty( const Mat &img, Mat &gy)
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{
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Mat kernel = Mat::zeros(3, 1, CV_8S);
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kernel.at<char>(2,0) = 1;
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kernel.at<char>(1,0) = -1;
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filter2D(img, gy, CV_32F, kernel);
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}
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void Cloning::lapx( const Mat &img, Mat &gxx)
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{
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Mat kernel = Mat::zeros(1, 3, CV_8S);
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kernel.at<char>(0,0) = -1;
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kernel.at<char>(0,1) = 1;
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filter2D(img, gxx, CV_32F, kernel);
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}
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void Cloning::lapy( const Mat &img, Mat &gyy)
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{
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Mat kernel = Mat::zeros(3, 1, CV_8S);
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kernel.at<char>(0,0) = -1;
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kernel.at<char>(1,0) = 1;
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filter2D(img, gyy, CV_32F, kernel);
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}
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void Cloning::dst(double *mod_diff, double *sineTransform,int h,int w)
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namespace cv
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{
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unsigned long int idx;
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Mat temp = Mat(2*h+2,1,CV_32F);
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Mat res = Mat(h,1,CV_32F);
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Mat planes[] = {Mat_<float>(temp), Mat::zeros(temp.size(), CV_32F)};
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Mat result;
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int p=0;
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for(int i=0;i<w;i++)
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class Cloning
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{
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temp.at<float>(0,0) = 0.0;
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public:
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void normal_clone(const cv::Mat &I, const cv::Mat &mask, const cv::Mat &wmask, cv::Mat &cloned, int num);
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void illum_change(cv::Mat &I, cv::Mat &mask, cv::Mat &wmask, cv::Mat &cloned, float alpha, float beta);
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void local_color_change(cv::Mat &I, cv::Mat &mask, cv::Mat &wmask, cv::Mat &cloned, float red_mul, float green_mul, float blue_mul);
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void texture_flatten(cv::Mat &I, cv::Mat &mask, cv::Mat &wmask, double low_threshold, double high_threhold, int kernel_size, cv::Mat &cloned);
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for(int j=0,r=1;j<h;j++,r++)
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{
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idx = j*w+i;
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temp.at<float>(r,0) = (float) mod_diff[idx];
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}
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protected:
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temp.at<float>(h+1,0)=0.0;
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void init_var(const cv::Mat &I, const cv::Mat &wmask);
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void initialization(const cv::Mat &I, const cv::Mat &mask, const cv::Mat &wmask);
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void scalar_product(cv::Mat mat, float r, float g, float b);
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void array_product(cv::Mat mat1, cv::Mat mat2, cv::Mat mat3);
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void poisson(const cv::Mat &I, const cv::Mat &gx, const cv::Mat &gy, const cv::Mat &sx, const cv::Mat &sy);
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void evaluate(const cv::Mat &I, const cv::Mat &wmask, const cv::Mat &cloned);
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void getGradientx(const cv::Mat &img, cv::Mat &gx);
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void getGradienty(const cv::Mat &img, cv::Mat &gy);
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void lapx(const cv::Mat &img, cv::Mat &gxx);
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void lapy(const cv::Mat &img, cv::Mat &gyy);
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void dst(double *mod_diff, double *sineTransform,int h,int w);
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void idst(double *mod_diff, double *sineTransform,int h,int w);
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void transpose(double *mat, double *mat_t,int h,int w);
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void solve(const cv::Mat &img, double *mod_diff, cv::Mat &result);
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void poisson_solver(const cv::Mat &img, cv::Mat &gxx , cv::Mat &gyy, cv::Mat &result);
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for(int j=h-1, r=h+2;j>=0;j--,r++)
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{
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idx = j*w+i;
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temp.at<float>(r,0) = (float) (-1.0 * mod_diff[idx]);
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}
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merge(planes, 2, result);
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private:
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std::vector <cv::Mat> rgb_channel, rgbx_channel, rgby_channel, output;
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cv::Mat grx, gry, sgx, sgy, srx32, sry32, grx32, gry32, smask, smask1;
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dft(result,result,0,0);
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Mat planes1[] = {Mat::zeros(result.size(), CV_32F), Mat::zeros(result.size(), CV_32F)};
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split(result, planes1);
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std::complex<double> two_i = std::sqrt(std::complex<double>(-1));
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double factor = -2*imag(two_i);
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for(int c=1,z=0;c<h+1;c++,z++)
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{
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res.at<float>(z,0) = (float) (planes1[1].at<float>(c,0)/factor);
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}
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for(int q=0,z=0;q<h;q++,z++)
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{
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idx = q*w+p;
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sineTransform[idx] = res.at<float>(z,0);
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}
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p++;
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}
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}
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void Cloning::idst(double *mod_diff, double *sineTransform,int h,int w)
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{
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int nn = h+1;
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unsigned long int idx;
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dst(mod_diff,sineTransform,h,w);
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for(int i= 0;i<h;i++)
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for(int j=0;j<w;j++)
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{
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idx = i*w + j;
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sineTransform[idx] = (double) (2*sineTransform[idx])/nn;
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}
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}
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void Cloning::transpose(double *mat, double *mat_t,int h,int w)
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{
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Mat tmp = Mat(h,w,CV_32FC1);
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unsigned long int idx;
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for(int i = 0 ; i < h;i++)
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{
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for(int j = 0 ; j < w; j++)
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{
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idx = i*(w) + j;
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tmp.at<float>(i,j) = (float) mat[idx];
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}
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}
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Mat tmp_t = tmp.t();
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for(int i = 0;i < tmp_t.size().height; i++)
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for(int j=0;j<tmp_t.size().width;j++)
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{
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idx = i*tmp_t.size().width + j;
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mat_t[idx] = tmp_t.at<float>(i,j);
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}
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}
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void Cloning::solve(const Mat &img, double *mod_diff, Mat &result)
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{
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int w = img.size().width;
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int h = img.size().height;
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unsigned long int idx,idx1;
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double *sineTransform = new double[(h-2)*(w-2)];
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double *sineTransform_t = new double[(h-2)*(w-2)];
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double *denom = new double[(h-2)*(w-2)];
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double *invsineTransform = new double[(h-2)*(w-2)];
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double *invsineTransform_t = new double[(h-2)*(w-2)];
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double *img_d = new double[(h)*(w)];
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dst(mod_diff,sineTransform,h-2,w-2);
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transpose(sineTransform,sineTransform_t,h-2,w-2);
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dst(sineTransform_t,sineTransform,w-2,h-2);
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transpose(sineTransform,sineTransform_t,w-2,h-2);
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int cy = 1;
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for(int i = 0 ; i < w-2;i++,cy++)
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{
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for(int j = 0,cx = 1; j < h-2; j++,cx++)
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{
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idx = j*(w-2) + i;
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denom[idx] = (float) 2*cos(CV_PI*cy/( (double) (w-1))) - 2 + 2*cos(CV_PI*cx/((double) (h-1))) - 2;
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}
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}
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for(idx = 0 ; idx < (unsigned)(w-2)*(h-2) ;idx++)
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{
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sineTransform_t[idx] = sineTransform_t[idx]/denom[idx];
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}
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idst(sineTransform_t,invsineTransform,h-2,w-2);
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transpose(invsineTransform,invsineTransform_t,h-2,w-2);
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idst(invsineTransform_t,invsineTransform,w-2,h-2);
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transpose(invsineTransform,invsineTransform_t,w-2,h-2);
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for(int i = 0 ; i < h;i++)
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{
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for(int j = 0 ; j < w; j++)
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{
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idx = i*w + j;
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img_d[idx] = (double)img.at<uchar>(i,j);
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}
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}
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for(int i = 1 ; i < h-1;i++)
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{
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for(int j = 1 ; j < w-1; j++)
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{
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idx = i*w + j;
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img_d[idx] = 0.0;
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}
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}
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for(int i = 1,id1=0 ; i < h-1;i++,id1++)
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{
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for(int j = 1,id2=0 ; j < w-1; j++,id2++)
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{
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idx = i*w + j;
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idx1= id1*(w-2) + id2;
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img_d[idx] = invsineTransform_t[idx1];
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}
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}
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for(int i = 0 ; i < h;i++)
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{
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for(int j = 0 ; j < w; j++)
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{
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idx = i*w + j;
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if(img_d[idx] < 0.0)
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result.at<uchar>(i,j) = 0;
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else if(img_d[idx] > 255.0)
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result.at<uchar>(i,j) = 255;
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else
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result.at<uchar>(i,j) = (uchar) img_d[idx];
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}
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}
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delete [] sineTransform;
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delete [] sineTransform_t;
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delete [] denom;
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delete [] invsineTransform;
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delete [] invsineTransform_t;
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delete [] img_d;
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}
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void Cloning::poisson_solver(const Mat &img, Mat &gxx , Mat &gyy, Mat &result)
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{
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int w = img.size().width;
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int h = img.size().height;
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unsigned long int idx;
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Mat lap = Mat(img.size(),CV_32FC1);
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lap = gxx + gyy;
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Mat bound = img.clone();
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rectangle(bound, Point(1, 1), Point(img.cols-2, img.rows-2), Scalar::all(0), -1);
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double *boundary_point = new double[h*w];
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for(int i =1;i<h-1;i++)
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for(int j=1;j<w-1;j++)
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{
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idx=i*w + j;
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boundary_point[idx] = -4*(int)bound.at<uchar>(i,j) + (int)bound.at<uchar>(i,(j+1)) + (int)bound.at<uchar>(i,(j-1))
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+ (int)bound.at<uchar>(i-1,j) + (int)bound.at<uchar>(i+1,j);
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}
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Mat diff = Mat(h,w,CV_32FC1);
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for(int i =0;i<h;i++)
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{
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for(int j=0;j<w;j++)
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{
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idx = i*w+j;
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diff.at<float>(i,j) = (float) (lap.at<float>(i,j) - boundary_point[idx]);
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}
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}
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double *mod_diff = new double[(h-2)*(w-2)];
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for(int i = 0 ; i < h-2;i++)
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{
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for(int j = 0 ; j < w-2; j++)
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{
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idx = i*(w-2) + j;
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mod_diff[idx] = diff.at<float>(i+1,j+1);
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}
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}
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///////////////////////////////////////////////////// Find DST /////////////////////////////////////////////////////
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solve(img,mod_diff,result);
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delete [] mod_diff;
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delete [] boundary_point;
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}
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void Cloning::init_var(const Mat &I, const Mat &wmask)
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{
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grx = Mat(I.size(),CV_32FC3);
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gry = Mat(I.size(),CV_32FC3);
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sgx = Mat(I.size(),CV_32FC3);
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sgy = Mat(I.size(),CV_32FC3);
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split(I,rgb_channel);
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smask = Mat(wmask.size(),CV_32FC1);
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srx32 = Mat(I.size(),CV_32FC3);
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sry32 = Mat(I.size(),CV_32FC3);
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smask1 = Mat(wmask.size(),CV_32FC1);
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grx32 = Mat(I.size(),CV_32FC3);
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gry32 = Mat(I.size(),CV_32FC3);
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}
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void Cloning::initialization(const Mat &I, const Mat &mask, const Mat &wmask)
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{
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init_var(I,wmask);
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getGradientx(I,grx);
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getGradienty(I,gry);
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getGradientx(mask,sgx);
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getGradienty(mask,sgy);
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Mat Kernel(Size(3, 3), CV_8UC1);
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Kernel.setTo(Scalar(1));
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erode(wmask, wmask, Kernel, Point(-1,-1), 3);
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wmask.convertTo(smask,CV_32FC1,1.0/255.0);
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I.convertTo(srx32,CV_32FC3,1.0/255.0);
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I.convertTo(sry32,CV_32FC3,1.0/255.0);
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}
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void Cloning::scalar_product(Mat mat, float r, float g, float b)
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{
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vector <Mat> channels;
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split(mat,channels);
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multiply(channels[2],r,channels[2]);
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multiply(channels[1],g,channels[1]);
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multiply(channels[0],b,channels[0]);
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merge(channels,mat);
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}
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void Cloning::array_product(Mat mat1, Mat mat2, Mat mat3)
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{
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vector <Mat> channels_temp1;
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vector <Mat> channels_temp2;
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split(mat1,channels_temp1);
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split(mat2,channels_temp2);
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multiply(channels_temp2[2],mat3,channels_temp1[2]);
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multiply(channels_temp2[1],mat3,channels_temp1[1]);
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multiply(channels_temp2[0],mat3,channels_temp1[0]);
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merge(channels_temp1,mat1);
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}
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void Cloning::poisson(const Mat &I, const Mat &gx, const Mat &gy, const Mat &sx, const Mat &sy)
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{
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Mat fx = Mat(I.size(),CV_32FC3);
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Mat fy = Mat(I.size(),CV_32FC3);
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fx = gx + sx;
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fy = gy + sy;
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Mat gxx = Mat(I.size(),CV_32FC3);
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Mat gyy = Mat(I.size(),CV_32FC3);
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lapx(fx,gxx);
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lapy(fy,gyy);
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split(gxx,rgbx_channel);
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split(gyy,rgby_channel);
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split(I,output);
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poisson_solver(rgb_channel[2],rgbx_channel[2], rgby_channel[2],output[2]);
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poisson_solver(rgb_channel[1],rgbx_channel[1], rgby_channel[1],output[1]);
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poisson_solver(rgb_channel[0],rgbx_channel[0], rgby_channel[0],output[0]);
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}
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void Cloning::evaluate(const Mat &I, const Mat &wmask, const Mat &cloned)
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{
|
||||
bitwise_not(wmask,wmask);
|
||||
|
||||
wmask.convertTo(smask1,CV_32FC1,1.0/255.0);
|
||||
I.convertTo(grx32,CV_32FC3,1.0/255.0);
|
||||
I.convertTo(gry32,CV_32FC3,1.0/255.0);
|
||||
|
||||
array_product(grx32,grx,smask1);
|
||||
array_product(gry32,gry,smask1);
|
||||
|
||||
poisson(I,grx32,gry32,srx32,sry32);
|
||||
|
||||
merge(output,cloned);
|
||||
}
|
||||
|
||||
void Cloning::normal_clone(const Mat &I, const Mat &mask, const Mat &wmask, Mat &cloned, int num)
|
||||
{
|
||||
int w = I.size().width;
|
||||
int h = I.size().height;
|
||||
int channel = I.channels();
|
||||
|
||||
|
||||
initialization(I,mask,wmask);
|
||||
|
||||
if(num == 1)
|
||||
{
|
||||
array_product(srx32,sgx,smask);
|
||||
array_product(sry32,sgy,smask);
|
||||
|
||||
}
|
||||
else if(num == 2)
|
||||
{
|
||||
|
||||
for(int i=0;i < h; i++)
|
||||
{
|
||||
for(int j=0; j < w; j++)
|
||||
{
|
||||
for(int c=0;c<channel;++c)
|
||||
{
|
||||
if(abs(sgx.at<float>(i,j*channel+c) - sgy.at<float>(i,j*channel+c)) >
|
||||
abs(grx.at<float>(i,j*channel+c) - gry.at<float>(i,j*channel+c)))
|
||||
{
|
||||
|
||||
srx32.at<float>(i,j*channel+c) = sgx.at<float>(i,j*channel+c)
|
||||
* smask.at<float>(i,j);
|
||||
sry32.at<float>(i,j*channel+c) = sgy.at<float>(i,j*channel+c)
|
||||
* smask.at<float>(i,j);
|
||||
}
|
||||
else
|
||||
{
|
||||
srx32.at<float>(i,j*channel+c) = grx.at<float>(i,j*channel+c)
|
||||
* smask.at<float>(i,j);
|
||||
sry32.at<float>(i,j*channel+c) = gry.at<float>(i,j*channel+c)
|
||||
* smask.at<float>(i,j);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
else if(num == 3)
|
||||
{
|
||||
Mat gray = Mat(mask.size(),CV_8UC1);
|
||||
Mat gray8 = Mat(mask.size(),CV_8UC3);
|
||||
cvtColor(mask, gray, COLOR_BGR2GRAY );
|
||||
vector <Mat> temp;
|
||||
split(I,temp);
|
||||
gray.copyTo(temp[2]);
|
||||
gray.copyTo(temp[1]);
|
||||
gray.copyTo(temp[0]);
|
||||
|
||||
merge(temp,gray8);
|
||||
|
||||
getGradientx(gray8,sgx);
|
||||
getGradienty(gray8,sgy);
|
||||
|
||||
array_product(srx32,sgx,smask);
|
||||
array_product(sry32,sgy,smask);
|
||||
|
||||
}
|
||||
|
||||
evaluate(I,wmask,cloned);
|
||||
}
|
||||
|
||||
void Cloning::local_color_change(Mat &I, Mat &mask, Mat &wmask, Mat &cloned, float red_mul=1.0,
|
||||
float green_mul=1.0, float blue_mul=1.0)
|
||||
{
|
||||
initialization(I,mask,wmask);
|
||||
|
||||
array_product(srx32,sgx,smask);
|
||||
array_product(sry32,sgy,smask);
|
||||
scalar_product(srx32,red_mul,green_mul,blue_mul);
|
||||
scalar_product(sry32,red_mul,green_mul,blue_mul);
|
||||
|
||||
evaluate(I,wmask,cloned);
|
||||
}
|
||||
|
||||
void Cloning::illum_change(Mat &I, Mat &mask, Mat &wmask, Mat &cloned, float alpha, float beta)
|
||||
{
|
||||
initialization(I,mask,wmask);
|
||||
|
||||
array_product(srx32,sgx,smask);
|
||||
array_product(sry32,sgy,smask);
|
||||
|
||||
Mat mag = Mat(I.size(),CV_32FC3);
|
||||
magnitude(srx32,sry32,mag);
|
||||
|
||||
Mat multX, multY, multx_temp, multy_temp;
|
||||
|
||||
multiply(srx32,pow(alpha,beta),multX);
|
||||
pow(mag,-1*beta, multx_temp);
|
||||
multiply(multX,multx_temp,srx32);
|
||||
patchNaNs(srx32);
|
||||
|
||||
multiply(sry32,pow(alpha,beta),multY);
|
||||
pow(mag,-1*beta, multy_temp);
|
||||
multiply(multY,multy_temp,sry32);
|
||||
patchNaNs(sry32);
|
||||
|
||||
Mat zeroMask = (srx32 != 0);
|
||||
|
||||
srx32.copyTo(srx32, zeroMask);
|
||||
sry32.copyTo(sry32, zeroMask);
|
||||
|
||||
evaluate(I,wmask,cloned);
|
||||
}
|
||||
|
||||
void Cloning::texture_flatten(Mat &I, Mat &mask, Mat &wmask, double low_threshold,
|
||||
double high_threshold, int kernel_size, Mat &cloned)
|
||||
{
|
||||
initialization(I,mask,wmask);
|
||||
|
||||
Mat out = Mat(mask.size(),CV_8UC1);
|
||||
Canny(mask,out,low_threshold,high_threshold,kernel_size);
|
||||
|
||||
Mat zeros(sgx.size(), CV_32FC3);
|
||||
zeros.setTo(0);
|
||||
Mat zerosMask = (out != 255);
|
||||
zeros.copyTo(sgx, zerosMask);
|
||||
zeros.copyTo(sgy, zerosMask);
|
||||
|
||||
array_product(srx32,sgx,smask);
|
||||
array_product(sry32,sgy,smask);
|
||||
|
||||
evaluate(I,wmask,cloned);
|
||||
};
|
||||
}
|
||||
#endif
|
||||
552
modules/photo/src/seamless_cloning_impl.cpp
Normal file
552
modules/photo/src/seamless_cloning_impl.cpp
Normal file
@ -0,0 +1,552 @@
|
||||
/*M///////////////////////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
|
||||
//
|
||||
// By downloading, copying, installing or using the software you agree to this license.
|
||||
// If you do not agree to this license, do not download, install,
|
||||
// copy or use the software.
|
||||
//
|
||||
//
|
||||
// License Agreement
|
||||
// For Open Source Computer Vision Library
|
||||
//
|
||||
// Copyright (C) 2013, OpenCV Foundation, all rights reserved.
|
||||
// Third party copyrights are property of their respective owners.
|
||||
//
|
||||
// Redistribution and use in source and binary forms, with or without modification,
|
||||
// are permitted provided that the following conditions are met:
|
||||
//
|
||||
// * Redistribution's of source code must retain the above copyright notice,
|
||||
// this list of conditions and the following disclaimer.
|
||||
//
|
||||
// * Redistribution's in binary form must reproduce the above copyright notice,
|
||||
// this list of conditions and the following disclaimer in the documentation
|
||||
// and/or other materials provided with the distribution.
|
||||
//
|
||||
// * The name of the copyright holders may not be used to endorse or promote products
|
||||
// derived from this software without specific prior written permission.
|
||||
//
|
||||
// This software is provided by the copyright holders and contributors "as is" and
|
||||
// any express or implied warranties, including, but not limited to, the implied
|
||||
// warranties of merchantability and fitness for a particular purpose are disclaimed.
|
||||
// In no event shall the Intel Corporation or contributors be liable for any direct,
|
||||
// indirect, incidental, special, exemplary, or consequential damages
|
||||
// (including, but not limited to, procurement of substitute goods or services;
|
||||
// loss of use, data, or profits; or business interruption) however caused
|
||||
// and on any theory of liability, whether in contract, strict liability,
|
||||
// or tort (including negligence or otherwise) arising in any way out of
|
||||
// the use of this software, even if advised of the possibility of such damage.
|
||||
//
|
||||
//M*/
|
||||
|
||||
#include "seamless_cloning.hpp"
|
||||
|
||||
#include <complex>
|
||||
|
||||
using namespace cv;
|
||||
using namespace std;
|
||||
|
||||
|
||||
void Cloning::getGradientx( const Mat &img, Mat &gx)
|
||||
{
|
||||
Mat kernel = Mat::zeros(1, 3, CV_8S);
|
||||
kernel.at<char>(0,2) = 1;
|
||||
kernel.at<char>(0,1) = -1;
|
||||
filter2D(img, gx, CV_32F, kernel);
|
||||
}
|
||||
|
||||
void Cloning::getGradienty( const Mat &img, Mat &gy)
|
||||
{
|
||||
Mat kernel = Mat::zeros(3, 1, CV_8S);
|
||||
kernel.at<char>(2,0) = 1;
|
||||
kernel.at<char>(1,0) = -1;
|
||||
filter2D(img, gy, CV_32F, kernel);
|
||||
}
|
||||
|
||||
void Cloning::lapx( const Mat &img, Mat &gxx)
|
||||
{
|
||||
Mat kernel = Mat::zeros(1, 3, CV_8S);
|
||||
kernel.at<char>(0,0) = -1;
|
||||
kernel.at<char>(0,1) = 1;
|
||||
filter2D(img, gxx, CV_32F, kernel);
|
||||
}
|
||||
|
||||
void Cloning::lapy( const Mat &img, Mat &gyy)
|
||||
{
|
||||
Mat kernel = Mat::zeros(3, 1, CV_8S);
|
||||
kernel.at<char>(0,0) = -1;
|
||||
kernel.at<char>(1,0) = 1;
|
||||
filter2D(img, gyy, CV_32F, kernel);
|
||||
}
|
||||
|
||||
void Cloning::dst(double *mod_diff, double *sineTransform,int h,int w)
|
||||
{
|
||||
|
||||
unsigned long int idx;
|
||||
|
||||
Mat temp = Mat(2*h+2,1,CV_32F);
|
||||
Mat res = Mat(h,1,CV_32F);
|
||||
|
||||
Mat planes[] = {Mat_<float>(temp), Mat::zeros(temp.size(), CV_32F)};
|
||||
|
||||
Mat result;
|
||||
int p=0;
|
||||
for(int i=0;i<w;i++)
|
||||
{
|
||||
temp.at<float>(0,0) = 0.0;
|
||||
|
||||
for(int j=0,r=1;j<h;j++,r++)
|
||||
{
|
||||
idx = j*w+i;
|
||||
temp.at<float>(r,0) = (float) mod_diff[idx];
|
||||
}
|
||||
|
||||
temp.at<float>(h+1,0)=0.0;
|
||||
|
||||
for(int j=h-1, r=h+2;j>=0;j--,r++)
|
||||
{
|
||||
idx = j*w+i;
|
||||
temp.at<float>(r,0) = (float) (-1.0 * mod_diff[idx]);
|
||||
}
|
||||
|
||||
merge(planes, 2, result);
|
||||
|
||||
dft(result,result,0,0);
|
||||
|
||||
Mat planes1[] = {Mat::zeros(result.size(), CV_32F), Mat::zeros(result.size(), CV_32F)};
|
||||
|
||||
split(result, planes1);
|
||||
|
||||
std::complex<double> two_i = std::sqrt(std::complex<double>(-1));
|
||||
|
||||
double factor = -2*imag(two_i);
|
||||
|
||||
for(int c=1,z=0;c<h+1;c++,z++)
|
||||
{
|
||||
res.at<float>(z,0) = (float) (planes1[1].at<float>(c,0)/factor);
|
||||
}
|
||||
|
||||
for(int q=0,z=0;q<h;q++,z++)
|
||||
{
|
||||
idx = q*w+p;
|
||||
sineTransform[idx] = res.at<float>(z,0);
|
||||
}
|
||||
p++;
|
||||
}
|
||||
}
|
||||
|
||||
void Cloning::idst(double *mod_diff, double *sineTransform,int h,int w)
|
||||
{
|
||||
int nn = h+1;
|
||||
unsigned long int idx;
|
||||
dst(mod_diff,sineTransform,h,w);
|
||||
for(int i= 0;i<h;i++)
|
||||
for(int j=0;j<w;j++)
|
||||
{
|
||||
idx = i*w + j;
|
||||
sineTransform[idx] = (double) (2*sineTransform[idx])/nn;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
void Cloning::transpose(double *mat, double *mat_t,int h,int w)
|
||||
{
|
||||
|
||||
Mat tmp = Mat(h,w,CV_32FC1);
|
||||
unsigned long int idx;
|
||||
for(int i = 0 ; i < h;i++)
|
||||
{
|
||||
for(int j = 0 ; j < w; j++)
|
||||
{
|
||||
|
||||
idx = i*(w) + j;
|
||||
tmp.at<float>(i,j) = (float) mat[idx];
|
||||
}
|
||||
}
|
||||
Mat tmp_t = tmp.t();
|
||||
|
||||
for(int i = 0;i < tmp_t.size().height; i++)
|
||||
for(int j=0;j<tmp_t.size().width;j++)
|
||||
{
|
||||
idx = i*tmp_t.size().width + j;
|
||||
mat_t[idx] = tmp_t.at<float>(i,j);
|
||||
}
|
||||
}
|
||||
|
||||
void Cloning::solve(const Mat &img, double *mod_diff, Mat &result)
|
||||
{
|
||||
int w = img.size().width;
|
||||
int h = img.size().height;
|
||||
|
||||
unsigned long int idx,idx1;
|
||||
|
||||
double *sineTransform = new double[(h-2)*(w-2)];
|
||||
double *sineTransform_t = new double[(h-2)*(w-2)];
|
||||
double *denom = new double[(h-2)*(w-2)];
|
||||
double *invsineTransform = new double[(h-2)*(w-2)];
|
||||
double *invsineTransform_t = new double[(h-2)*(w-2)];
|
||||
double *img_d = new double[(h)*(w)];
|
||||
|
||||
dst(mod_diff,sineTransform,h-2,w-2);
|
||||
|
||||
transpose(sineTransform,sineTransform_t,h-2,w-2);
|
||||
|
||||
dst(sineTransform_t,sineTransform,w-2,h-2);
|
||||
|
||||
transpose(sineTransform,sineTransform_t,w-2,h-2);
|
||||
|
||||
int cy = 1;
|
||||
|
||||
for(int i = 0 ; i < w-2;i++,cy++)
|
||||
{
|
||||
for(int j = 0,cx = 1; j < h-2; j++,cx++)
|
||||
{
|
||||
idx = j*(w-2) + i;
|
||||
denom[idx] = (float) 2*cos(CV_PI*cy/( (double) (w-1))) - 2 + 2*cos(CV_PI*cx/((double) (h-1))) - 2;
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
for(idx = 0 ; idx < (unsigned)(w-2)*(h-2) ;idx++)
|
||||
{
|
||||
sineTransform_t[idx] = sineTransform_t[idx]/denom[idx];
|
||||
}
|
||||
|
||||
idst(sineTransform_t,invsineTransform,h-2,w-2);
|
||||
|
||||
transpose(invsineTransform,invsineTransform_t,h-2,w-2);
|
||||
|
||||
idst(invsineTransform_t,invsineTransform,w-2,h-2);
|
||||
|
||||
transpose(invsineTransform,invsineTransform_t,w-2,h-2);
|
||||
|
||||
for(int i = 0 ; i < h;i++)
|
||||
{
|
||||
for(int j = 0 ; j < w; j++)
|
||||
{
|
||||
idx = i*w + j;
|
||||
img_d[idx] = (double)img.at<uchar>(i,j);
|
||||
}
|
||||
}
|
||||
for(int i = 1 ; i < h-1;i++)
|
||||
{
|
||||
for(int j = 1 ; j < w-1; j++)
|
||||
{
|
||||
idx = i*w + j;
|
||||
img_d[idx] = 0.0;
|
||||
}
|
||||
}
|
||||
for(int i = 1,id1=0 ; i < h-1;i++,id1++)
|
||||
{
|
||||
for(int j = 1,id2=0 ; j < w-1; j++,id2++)
|
||||
{
|
||||
idx = i*w + j;
|
||||
idx1= id1*(w-2) + id2;
|
||||
img_d[idx] = invsineTransform_t[idx1];
|
||||
}
|
||||
}
|
||||
|
||||
for(int i = 0 ; i < h;i++)
|
||||
{
|
||||
for(int j = 0 ; j < w; j++)
|
||||
{
|
||||
idx = i*w + j;
|
||||
if(img_d[idx] < 0.0)
|
||||
result.at<uchar>(i,j) = 0;
|
||||
else if(img_d[idx] > 255.0)
|
||||
result.at<uchar>(i,j) = 255;
|
||||
else
|
||||
result.at<uchar>(i,j) = (uchar) img_d[idx];
|
||||
}
|
||||
}
|
||||
|
||||
delete [] sineTransform;
|
||||
delete [] sineTransform_t;
|
||||
delete [] denom;
|
||||
delete [] invsineTransform;
|
||||
delete [] invsineTransform_t;
|
||||
delete [] img_d;
|
||||
}
|
||||
|
||||
void Cloning::poisson_solver(const Mat &img, Mat &gxx , Mat &gyy, Mat &result)
|
||||
{
|
||||
|
||||
int w = img.size().width;
|
||||
int h = img.size().height;
|
||||
|
||||
unsigned long int idx;
|
||||
|
||||
Mat lap = Mat(img.size(),CV_32FC1);
|
||||
|
||||
lap = gxx + gyy;
|
||||
|
||||
Mat bound = img.clone();
|
||||
|
||||
rectangle(bound, Point(1, 1), Point(img.cols-2, img.rows-2), Scalar::all(0), -1);
|
||||
|
||||
double *boundary_point = new double[h*w];
|
||||
|
||||
for(int i =1;i<h-1;i++)
|
||||
for(int j=1;j<w-1;j++)
|
||||
{
|
||||
idx=i*w + j;
|
||||
boundary_point[idx] = -4*(int)bound.at<uchar>(i,j) + (int)bound.at<uchar>(i,(j+1)) + (int)bound.at<uchar>(i,(j-1))
|
||||
+ (int)bound.at<uchar>(i-1,j) + (int)bound.at<uchar>(i+1,j);
|
||||
}
|
||||
|
||||
Mat diff = Mat(h,w,CV_32FC1);
|
||||
for(int i =0;i<h;i++)
|
||||
{
|
||||
for(int j=0;j<w;j++)
|
||||
{
|
||||
idx = i*w+j;
|
||||
diff.at<float>(i,j) = (float) (lap.at<float>(i,j) - boundary_point[idx]);
|
||||
}
|
||||
}
|
||||
|
||||
double *mod_diff = new double[(h-2)*(w-2)];
|
||||
for(int i = 0 ; i < h-2;i++)
|
||||
{
|
||||
for(int j = 0 ; j < w-2; j++)
|
||||
{
|
||||
idx = i*(w-2) + j;
|
||||
mod_diff[idx] = diff.at<float>(i+1,j+1);
|
||||
|
||||
}
|
||||
}
|
||||
///////////////////////////////////////////////////// Find DST /////////////////////////////////////////////////////
|
||||
|
||||
solve(img,mod_diff,result);
|
||||
|
||||
delete [] mod_diff;
|
||||
delete [] boundary_point;
|
||||
}
|
||||
|
||||
void Cloning::init_var(const Mat &I, const Mat &wmask)
|
||||
{
|
||||
grx = Mat(I.size(),CV_32FC3);
|
||||
gry = Mat(I.size(),CV_32FC3);
|
||||
sgx = Mat(I.size(),CV_32FC3);
|
||||
sgy = Mat(I.size(),CV_32FC3);
|
||||
|
||||
split(I,rgb_channel);
|
||||
|
||||
smask = Mat(wmask.size(),CV_32FC1);
|
||||
srx32 = Mat(I.size(),CV_32FC3);
|
||||
sry32 = Mat(I.size(),CV_32FC3);
|
||||
smask1 = Mat(wmask.size(),CV_32FC1);
|
||||
grx32 = Mat(I.size(),CV_32FC3);
|
||||
gry32 = Mat(I.size(),CV_32FC3);
|
||||
}
|
||||
|
||||
void Cloning::initialization(const Mat &I, const Mat &mask, const Mat &wmask)
|
||||
{
|
||||
init_var(I,wmask);
|
||||
|
||||
getGradientx(I,grx);
|
||||
getGradienty(I,gry);
|
||||
|
||||
getGradientx(mask,sgx);
|
||||
getGradienty(mask,sgy);
|
||||
|
||||
Mat Kernel(Size(3, 3), CV_8UC1);
|
||||
Kernel.setTo(Scalar(1));
|
||||
|
||||
erode(wmask, wmask, Kernel, Point(-1,-1), 3);
|
||||
|
||||
wmask.convertTo(smask,CV_32FC1,1.0/255.0);
|
||||
I.convertTo(srx32,CV_32FC3,1.0/255.0);
|
||||
I.convertTo(sry32,CV_32FC3,1.0/255.0);
|
||||
}
|
||||
|
||||
void Cloning::scalar_product(Mat mat, float r, float g, float b)
|
||||
{
|
||||
vector <Mat> channels;
|
||||
split(mat,channels);
|
||||
multiply(channels[2],r,channels[2]);
|
||||
multiply(channels[1],g,channels[1]);
|
||||
multiply(channels[0],b,channels[0]);
|
||||
merge(channels,mat);
|
||||
}
|
||||
|
||||
void Cloning::array_product(Mat mat1, Mat mat2, Mat mat3)
|
||||
{
|
||||
vector <Mat> channels_temp1;
|
||||
vector <Mat> channels_temp2;
|
||||
split(mat1,channels_temp1);
|
||||
split(mat2,channels_temp2);
|
||||
multiply(channels_temp2[2],mat3,channels_temp1[2]);
|
||||
multiply(channels_temp2[1],mat3,channels_temp1[1]);
|
||||
multiply(channels_temp2[0],mat3,channels_temp1[0]);
|
||||
merge(channels_temp1,mat1);
|
||||
}
|
||||
|
||||
void Cloning::poisson(const Mat &I, const Mat &gx, const Mat &gy, const Mat &sx, const Mat &sy)
|
||||
{
|
||||
Mat fx = Mat(I.size(),CV_32FC3);
|
||||
Mat fy = Mat(I.size(),CV_32FC3);
|
||||
|
||||
fx = gx + sx;
|
||||
fy = gy + sy;
|
||||
|
||||
Mat gxx = Mat(I.size(),CV_32FC3);
|
||||
Mat gyy = Mat(I.size(),CV_32FC3);
|
||||
|
||||
lapx(fx,gxx);
|
||||
lapy(fy,gyy);
|
||||
|
||||
split(gxx,rgbx_channel);
|
||||
split(gyy,rgby_channel);
|
||||
|
||||
split(I,output);
|
||||
|
||||
poisson_solver(rgb_channel[2],rgbx_channel[2], rgby_channel[2],output[2]);
|
||||
poisson_solver(rgb_channel[1],rgbx_channel[1], rgby_channel[1],output[1]);
|
||||
poisson_solver(rgb_channel[0],rgbx_channel[0], rgby_channel[0],output[0]);
|
||||
}
|
||||
|
||||
void Cloning::evaluate(const Mat &I, const Mat &wmask, const Mat &cloned)
|
||||
{
|
||||
bitwise_not(wmask,wmask);
|
||||
|
||||
wmask.convertTo(smask1,CV_32FC1,1.0/255.0);
|
||||
I.convertTo(grx32,CV_32FC3,1.0/255.0);
|
||||
I.convertTo(gry32,CV_32FC3,1.0/255.0);
|
||||
|
||||
array_product(grx32,grx,smask1);
|
||||
array_product(gry32,gry,smask1);
|
||||
|
||||
poisson(I,grx32,gry32,srx32,sry32);
|
||||
|
||||
merge(output,cloned);
|
||||
}
|
||||
|
||||
void Cloning::normal_clone(const Mat &I, const Mat &mask, const Mat &wmask, Mat &cloned, int num)
|
||||
{
|
||||
int w = I.size().width;
|
||||
int h = I.size().height;
|
||||
int channel = I.channels();
|
||||
|
||||
|
||||
initialization(I,mask,wmask);
|
||||
|
||||
if(num == 1)
|
||||
{
|
||||
array_product(srx32,sgx,smask);
|
||||
array_product(sry32,sgy,smask);
|
||||
|
||||
}
|
||||
else if(num == 2)
|
||||
{
|
||||
|
||||
for(int i=0;i < h; i++)
|
||||
{
|
||||
for(int j=0; j < w; j++)
|
||||
{
|
||||
for(int c=0;c<channel;++c)
|
||||
{
|
||||
if(abs(sgx.at<float>(i,j*channel+c) - sgy.at<float>(i,j*channel+c)) >
|
||||
abs(grx.at<float>(i,j*channel+c) - gry.at<float>(i,j*channel+c)))
|
||||
{
|
||||
|
||||
srx32.at<float>(i,j*channel+c) = sgx.at<float>(i,j*channel+c)
|
||||
* smask.at<float>(i,j);
|
||||
sry32.at<float>(i,j*channel+c) = sgy.at<float>(i,j*channel+c)
|
||||
* smask.at<float>(i,j);
|
||||
}
|
||||
else
|
||||
{
|
||||
srx32.at<float>(i,j*channel+c) = grx.at<float>(i,j*channel+c)
|
||||
* smask.at<float>(i,j);
|
||||
sry32.at<float>(i,j*channel+c) = gry.at<float>(i,j*channel+c)
|
||||
* smask.at<float>(i,j);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
else if(num == 3)
|
||||
{
|
||||
Mat gray = Mat(mask.size(),CV_8UC1);
|
||||
Mat gray8 = Mat(mask.size(),CV_8UC3);
|
||||
cvtColor(mask, gray, COLOR_BGR2GRAY );
|
||||
vector <Mat> temp;
|
||||
split(I,temp);
|
||||
gray.copyTo(temp[2]);
|
||||
gray.copyTo(temp[1]);
|
||||
gray.copyTo(temp[0]);
|
||||
|
||||
merge(temp,gray8);
|
||||
|
||||
getGradientx(gray8,sgx);
|
||||
getGradienty(gray8,sgy);
|
||||
|
||||
array_product(srx32,sgx,smask);
|
||||
array_product(sry32,sgy,smask);
|
||||
|
||||
}
|
||||
|
||||
evaluate(I,wmask,cloned);
|
||||
}
|
||||
|
||||
void Cloning::local_color_change(Mat &I, Mat &mask, Mat &wmask, Mat &cloned, float red_mul=1.0,
|
||||
float green_mul=1.0, float blue_mul=1.0)
|
||||
{
|
||||
initialization(I,mask,wmask);
|
||||
|
||||
array_product(srx32,sgx,smask);
|
||||
array_product(sry32,sgy,smask);
|
||||
scalar_product(srx32,red_mul,green_mul,blue_mul);
|
||||
scalar_product(sry32,red_mul,green_mul,blue_mul);
|
||||
|
||||
evaluate(I,wmask,cloned);
|
||||
}
|
||||
|
||||
void Cloning::illum_change(Mat &I, Mat &mask, Mat &wmask, Mat &cloned, float alpha, float beta)
|
||||
{
|
||||
initialization(I,mask,wmask);
|
||||
|
||||
array_product(srx32,sgx,smask);
|
||||
array_product(sry32,sgy,smask);
|
||||
|
||||
Mat mag = Mat(I.size(),CV_32FC3);
|
||||
magnitude(srx32,sry32,mag);
|
||||
|
||||
Mat multX, multY, multx_temp, multy_temp;
|
||||
|
||||
multiply(srx32,pow(alpha,beta),multX);
|
||||
pow(mag,-1*beta, multx_temp);
|
||||
multiply(multX,multx_temp,srx32);
|
||||
|
||||
multiply(sry32,pow(alpha,beta),multY);
|
||||
pow(mag,-1*beta, multy_temp);
|
||||
multiply(multY,multy_temp,sry32);
|
||||
|
||||
Mat zeroMask = (srx32 != 0);
|
||||
|
||||
srx32.copyTo(srx32, zeroMask);
|
||||
sry32.copyTo(sry32, zeroMask);
|
||||
|
||||
evaluate(I,wmask,cloned);
|
||||
}
|
||||
|
||||
void Cloning::texture_flatten(Mat &I, Mat &mask, Mat &wmask, double low_threshold,
|
||||
double high_threshold, int kernel_size, Mat &cloned)
|
||||
{
|
||||
initialization(I,mask,wmask);
|
||||
|
||||
Mat out = Mat(mask.size(),CV_8UC1);
|
||||
Canny(mask,out,low_threshold,high_threshold,kernel_size);
|
||||
|
||||
Mat zeros(sgx.size(), CV_32FC3);
|
||||
zeros.setTo(0);
|
||||
Mat zerosMask = (out != 255);
|
||||
zeros.copyTo(sgx, zerosMask);
|
||||
zeros.copyTo(sgy, zerosMask);
|
||||
|
||||
array_product(srx32,sgx,smask);
|
||||
array_product(sry32,sgy,smask);
|
||||
|
||||
evaluate(I,wmask,cloned);
|
||||
}
|
||||
Loading…
x
Reference in New Issue
Block a user