| 74 | } |
| 75 | |
| 76 | void ff_print_error_stats(const FfErrorStats &stats, const char *test_name) { |
| 77 | fl::printf("\n=== %s ===\n", test_name); |
| 78 | fl::printf("Total pixels: %d\n", stats.total_pixels); |
| 79 | fl::printf("Pixels with error: %d (%.1f%%)\n", |
| 80 | stats.pixels_with_error, |
| 81 | 100.0 * stats.pixels_with_error / stats.total_pixels); |
| 82 | fl::printf("Max error: %d\n", stats.max_error); |
| 83 | fl::printf("Avg error: %.2f\n", stats.avg_error); |
| 84 | fl::printf("Std dev: %.2f\n", stats.std_dev); |
| 85 | fl::printf("\nError distribution:\n"); |
| 86 | fl::printf(" >1 LSB: %d pixels (%.1f%%)\n", |
| 87 | stats.pixels_over_1bit, |
| 88 | 100.0 * stats.pixels_over_1bit / stats.total_pixels); |
| 89 | fl::printf(" >2 LSB: %d pixels (%.1f%%)\n", |
| 90 | stats.pixels_over_2bit, |
| 91 | 100.0 * stats.pixels_over_2bit / stats.total_pixels); |
| 92 | fl::printf(" >4 LSB: %d pixels (%.1f%%)\n", |
| 93 | stats.pixels_over_4bit, |
| 94 | 100.0 * stats.pixels_over_4bit / stats.total_pixels); |
| 95 | |
| 96 | fl::printf("\nHistogram (first 20 buckets):\n"); |
| 97 | for (int i = 0; i < 20 && i <= stats.max_error; i++) { |
| 98 | if (stats.histogram[i] > 0) { |
| 99 | fl::printf(" Error=%2d: %4d pixels (%.1f%%)\n", |
| 100 | i, stats.histogram[i], |
| 101 | 100.0 * stats.histogram[i] / stats.total_pixels); |
| 102 | } |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | int count_diff_pixels(const CRGB *a, const CRGB *b, int count) { |
| 107 | int diff = 0; |