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fixed minor bugs in gpu module

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This commit is contained in:
Alexey Spizhevoy
2010-12-15 12:10:30 +00:00
parent 93e344a962
commit e5eec31be1
2 changed files with 43 additions and 3 deletions
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44
modules/gpu/src/cuda/match_template.cu
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@@ -42,7 +42,7 @@
#include <cufft.h>
#include "internal_shared.hpp"
#include "../opencv2/gpu/device/vecmath.hpp"
#include "opencv2/gpu/device/vecmath.hpp"
using namespace cv::gpu;
using namespace cv::gpu::device;
@@ -386,10 +386,10 @@ __global__ void matchTemplatePreparedKernel_CCOFF_8U(
if (x < result.cols && y < result.rows)
{
float ccorr = result.ptr(y)[x];
float image_sum_ = (float)(
(image_sum.ptr(y + h)[x + w] - image_sum.ptr(y)[x + w]) -
(image_sum.ptr(y + h)[x] - image_sum.ptr(y)[x]));
float ccorr = result.ptr(y)[x];
result.ptr(y)[x] = ccorr - image_sum_ * templ_sum_scale;
}
}
@@ -407,6 +407,46 @@ void matchTemplatePrepared_CCOFF_8U(
}
__global__ void matchTemplatePreparedKernel_CCOFF_8UC2(
int w, int h, float templ_sum_scale_r, float templ_sum_scale_g,
const PtrStep_<unsigned int> image_sum_r,
const PtrStep_<unsigned int> image_sum_g,
DevMem2Df result)
{
const int x = blockIdx.x * blockDim.x + threadIdx.x;
const int y = blockIdx.y * blockDim.y + threadIdx.y;
if (x < result.cols && y < result.rows)
{
float image_sum_r_ = (float)(
(image_sum_r.ptr(y + h)[x + w] - image_sum_r.ptr(y)[x + w]) -
(image_sum_r.ptr(y + h)[x] - image_sum_r.ptr(y)[x]));
float image_sum_g_ = (float)(
(image_sum_g.ptr(y + h)[x + w] - image_sum_g.ptr(y)[x + w]) -
(image_sum_g.ptr(y + h)[x] - image_sum_g.ptr(y)[x]));
float ccorr = result.ptr(y)[x];
result.ptr(y)[x] = ccorr - image_sum_r_ * templ_sum_scale_r
- image_sum_g_ * templ_sum_scale_g;
}
}
void matchTemplatePrepared_CCOFF_8UC2(
int w, int h,
const DevMem2D_<unsigned int> image_sum_r,
const DevMem2D_<unsigned int> image_sum_g,
unsigned int templ_sum_r, unsigned int templ_sum_g,
DevMem2Df result)
{
dim3 threads(32, 8);
dim3 grid(divUp(result.cols, threads.x), divUp(result.rows, threads.y));
matchTemplatePreparedKernel_CCOFF_8UC2<<<grid, threads>>>(
w, h, (float)templ_sum_r / (w * h), (float)templ_sum_g / (w * h),
image_sum_r, image_sum_g, result);
cudaSafeCall(cudaThreadSynchronize());
}
__global__ void matchTemplatePreparedKernel_CCOFF_NORMED_8U(
int w, int h, float weight,
float templ_sum_scale, float templ_sqsum_scale,