int i, j;
double *img_reduced = malloc(w*h * sizeof(double));
static const double filter[3][3] = { /* filter to derive one component */
- { -1, 0, 1 },
- { -2, 0, 2 },
- { -1, 0, 1 }
+ { -3, 0, 3 },
+ { -10, 0, 10 },
+ { -3, 0, 3 }
};
- static const double filter_mult = 0.125;
+ static const double filter_mult = 0.03125;
for(y = 0; y < h; ++y)
for(x = 0; x < w; ++x)