Searched refs:gamma_correction (Results 1 – 4 of 4) sorted by relevance
9406 double gamma_correction; /* Overall correction required. */ member9506 vi->gamma_correction = 1/(dp->file_gamma*dp->screen_gamma); in init_validate_info()9507 if (fabs(vi->gamma_correction-1) < PNG_GAMMA_THRESHOLD) in init_validate_info()9508 vi->gamma_correction = 0; in init_validate_info()9632 if (alpha >= 0 && vi->gamma_correction > 0) in gamma_component_validate()9633 encoded_sample = pow(encoded_sample, vi->gamma_correction); in gamma_component_validate()10110 if (vi->gamma_correction > 0) in gamma_component_validate()10113 pos = safecatd(msg, sizeof msg, pos, vi->gamma_correction, 2); in gamma_component_validate()10230 processing = (vi.gamma_correction > 0 && !dp->threshold_test) in gamma_image_validate()
1300 int gamma_correction = 0; in png_init_read_transformations() local1305 gamma_correction = png_gamma_threshold(png_ptr->colorspace.gamma, in png_init_read_transformations()1342 if (gamma_correction != 0) in png_init_read_transformations()