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#include "dcp_core.h"
void CalcTransmission(IplImage *transmission, IplImage *input, double A[], int radius)
{
int width = input->width;
int height = input->height;
int widthstep = input->widthStep;
int gwidthstep = transmission->widthStep;
int nch = input->nChannels;
double w = 0.95;
IplImage *normalized_input = cvCreateImage(cvSize(width, height), IPL_DEPTH_8U, 3);
for (int k = 0; k < 3; k++)
{
for (int i = 0; i < height; i++)
{
for (int j = 0; j < width; j++)
{
double tmp = *(uchar *)(input->imageData + i * widthstep + j * nch + k);
tmp = tmp / A[k] * 255.0;
tmp = tmp > 255 ? 255 : tmp;
*(uchar *)(normalized_input->imageData + i * widthstep + j * nch + k) = tmp;
}
}
}
CalcDarkChannel(transmission, normalized_input, radius);
for (int i = 0; i < height; i++)
{
for (int j = 0; j < width; j++)
{
double tran = *(uchar *)(transmission->imageData + i * gwidthstep + j);
tran = 1 - w * (tran / 255.0);
tran = tran > 1 ? 1 : tran;
tran = tran < 0 ? 0 : tran;
*(uchar *)(transmission->imageData + i * gwidthstep + j) = tran * 255;
}
}
cvReleaseImage(&normalized_input);
}
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