Searched refs:hist_u (Results 1 – 1 of 1) sorted by relevance
213 uint32_t hist_u[128] = {0}; in estimate_noise_variance() local239 hist_u[abs(pixel[2 * i + j * row_pitch] - base)]++; in estimate_noise_variance()247 pixel_sum += hist_u[i]; in estimate_noise_variance()