Files
opencv/tests/cv/src/aadaptthresh.cpp
2010-05-11 17:44:00 +00:00

212 lines
6.6 KiB
C++

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#include "cvtest.h"
#if 0
//extern "C"{
// #include "HighGUI.h"
//}
static char cTestName[] = "Image Adaptive Thresholding";
static char cTestClass[] = "Algorithm";
static char cFuncName[] = "cvAdaptThreshold";
static int aAdaptThreshold()
{
CvPoint *cp;
int parameter1 = 3;
double parameter2 = 10;
int width = 128;
int height = 128;
int kp = 5;
int nPoints2 = 20;
int fi = 0;
int a2 = 20;
int b2 = 25,xc,yc;
double pi = 3.1415926;
double lower, upper;
unsigned seed;
char rand;
AtsRandState state;
long diff_binary, diff_binary_inv;
int l,i,j;
IplImage *imBinary, *imBinary_inv, *imTo_zero, *imTo_zero_inv, *imInput, *imOutput;
CvSize size;
int code = TRS_OK;
// read tests params
if(!trsiRead( &width, "128", "image width" ))
return TRS_UNDEF;
if(!trsiRead( &height, "128", "image height" ))
return TRS_UNDEF;
// initialized image
l = width*height*sizeof(uchar);
cp = (CvPoint*) trsmAlloc(nPoints2*sizeof(CvPoint));
xc = (int)( width/2.);
yc = (int)( height/2.);
kp = nPoints2;
size.width = width;
size.height = height;
int xmin = width;
int ymin = height;
int xmax = 0;
int ymax = 0;
for(i=0;i<nPoints2;i++)
{
cp[i].x = (int)(a2*cos(2*pi*i/nPoints2)*cos(2*pi*fi/360.))-
(int)(b2*sin(2*pi*i/nPoints2)*sin(2*pi*fi/360.))+xc;
if(xmin> cp[i].x) xmin = cp[i].x;
if(xmax< cp[i].x) xmax = cp[i].x;
cp[i].y = (int)(a2*cos(2*pi*i/nPoints2)*sin(2*pi*fi/360.))+
(int)(b2*sin(2*pi*i/nPoints2)*cos(2*pi*fi/360.))+yc;
if(ymin> cp[i].y) ymin = cp[i].y;
if(ymax< cp[i].y) ymax = cp[i].y;
}
if(xmax>width||xmin<0||ymax>height||ymin<0) return TRS_FAIL;
// IPL image moment calculation
// create image
imBinary = cvCreateImage( size, 8, 1 );
imBinary_inv = cvCreateImage( size, 8, 1 );
imTo_zero = cvCreateImage( size, 8, 1 );
imTo_zero_inv = cvCreateImage( size, 8, 1 );
imOutput = cvCreateImage( size, 8, 1 );
imInput = cvCreateImage( size, 8, 1 );
int bgrn = 50;
int signal = 150;
memset(imInput->imageData,bgrn,l);
cvFillPoly(imInput, &cp, &kp, 1, cvScalarAll(signal));
// do noise
upper = 22;
lower = -upper;
seed = 345753;
atsRandInit( &state, lower, upper, seed );
uchar *input = (uchar*)imInput->imageData;
uchar *binary = (uchar*)imBinary->imageData;
uchar *binary_inv = (uchar*)imBinary_inv->imageData;
uchar *to_zero = (uchar*)imTo_zero->imageData;
uchar *to_zero_inv = (uchar*)imTo_zero_inv->imageData;
double *parameter = (double*)trsmAlloc(2*sizeof(double));
int step = imInput->widthStep;
for(i = 0; i<size.height; i++, input+=step, binary+=step, binary_inv+=step, to_zero+=step,to_zero_inv+=step)
{
for(j = 0; j<size.width; j++)
{
atsbRand8s( &state, &rand, 1);
if(input[j] == bgrn)
{
binary[j] = to_zero[j] = (uchar)0;
binary_inv[j] = (uchar)255;
to_zero_inv[j] = input [j] = (uchar)(bgrn + rand);
}
else
{
binary[j] = (uchar)255;
binary_inv[j] = to_zero_inv[j] = (uchar)0;
to_zero[j] = input[j] = (uchar)(signal + rand);
}
}
}
cvAdaptiveThreshold( imInput, imOutput, (double)255, CV_ADAPTIVE_THRESH_MEAN_C, CV_THRESH_BINARY, parameter1, parameter2 );
diff_binary = atsCompare1Db( (uchar*)imOutput->imageData, (uchar*)imBinary->imageData, l, 5);
cvAdaptiveThreshold( imInput, imOutput, (double)255, CV_ADAPTIVE_THRESH_MEAN_C, CV_THRESH_BINARY_INV, parameter1, parameter2 );
diff_binary_inv = atsCompare1Db( (uchar*)imOutput->imageData, (uchar*)imBinary_inv->imageData, l, 5);
if( diff_binary > 5 || diff_binary_inv > 5 )
code = TRS_FAIL;
cvReleaseImage(&imInput);
cvReleaseImage(&imOutput);
cvReleaseImage(&imBinary);
cvReleaseImage(&imBinary_inv);
cvReleaseImage(&imTo_zero);
cvReleaseImage(&imTo_zero_inv);
trsWrite( ATS_CON | ATS_LST | ATS_SUM, "diff_binary =%ld \n", diff_binary);
trsWrite( ATS_CON | ATS_LST | ATS_SUM, "diff_binary_inv =%ld \n", diff_binary_inv);
trsFree(parameter);
trsFree(cp);
return code;
}
void InitAAdaptThreshold( void )
{
/* Test Registartion */
trsReg(cFuncName,cTestName,cTestClass,aAdaptThreshold);
} /* InitAAdaptThreshold */
#endif
/* End of file. */