void c_flow (float* xyflow, float *img, int m, int n) {
int i, j ;
int pixindex = 0;
float R=0,G=0,B=0;
float xflow, yflow;
int pageoff = m*n;
for (i = 0; i < m; i++) { //height rows
for (j = 0; j < n; j++) { //width cols
int index = pixindex*2;
xflow = xyflow[index+0];
yflow = xyflow[index+1];
int imgindex = (j*m+i)*3;
cartesianToRGB(xflow, yflow, &R, &G, &B);
img[imgindex+0] = B / 255.0;
img[imgindex+1] = G / 255.0;
img[imgindex+2] = R / 255.0;
pixindex++;
}
}
return ;
}
void ColorFlow2(const float* input, unsigned char* output, int size, float scale)
{
float pix[3] = {0.f, 0.f, 0.f};
for (int i = 0; i < size; ++i) {
const float* inpixel = &(input[i*2]);
unsigned char* outpixel = &(output[i*3]);
cartesianToRGB(inpixel[0]*scale, inpixel[1]*scale,
&pix[0], &pix[1], &pix[2]);
outpixel[0] = (unsigned char)(pix[0]);
outpixel[1] = (unsigned char)(pix[1]);
outpixel[2] = (unsigned char)(pix[2]);
}
}
