| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | |
| 2 | pngsuite |
| 3 | -------- |
| 4 | (c) Willem van Schaik, 1999 |
| 5 | |
| 6 | Permission to use, copy, and distribute these images for any purpose and |
| 7 | without fee is hereby granted. |
| 8 | |
| 9 | These 15 images are part of the much larger PngSuite test-set of |
| 10 | images, available for developers of PNG supporting software. The |
| 11 | complete set, available at http:/www.schaik.com/pngsuite/, contains |
| 12 | a variety of images to test interlacing, gamma settings, ancillary |
| 13 | chunks, etc. |
| 14 | |
| 15 | The images in this directory represent the basic PNG color-types: |
| 16 | grayscale (1-16 bit deep), full color (8 or 16 bit), paletted |
| 17 | (1-8 bit) and grayscale or color images with alpha channel. You |
| 18 | can use them to test the proper functioning of PNG software. |
| 19 | |
| 20 | filename depth type |
| 21 | ------------ ------ -------------- |
| 22 | basn0g01.png 1-bit grayscale |
| 23 | basn0g02.png 2-bit grayscale |
| 24 | basn0g04.png 4-bit grayscale |
| 25 | basn0g08.png 8-bit grayscale |
| 26 | basn0g16.png 16-bit grayscale |
| 27 | basn2c08.png 8-bit truecolor |
| 28 | basn2c16.png 16-bit truecolor |
| 29 | basn3p01.png 1-bit paletted |
| 30 | basn3p02.png 2-bit paletted |
| 31 | basn3p04.png 4-bit paletted |
| 32 | basn3p08.png 8-bit paletted |
| 33 | basn4a08.png 8-bit gray with alpha |
| 34 | basn4a16.png 16-bit gray with alpha |
| 35 | basn6a08.png 8-bit RGBA |
| 36 | basn6a16.png 16-bit RGBA |
| 37 | |
| 38 | Here is the correct result of typing "pngtest -m *.png" in |
| 39 | this directory: |
| 40 | |
| 41 | Testing basn0g01.png: PASS (524 zero samples) |
| 42 | Filter 0 was used 32 times |
| 43 | Testing basn0g02.png: PASS (448 zero samples) |
| 44 | Filter 0 was used 32 times |
| 45 | Testing basn0g04.png: PASS (520 zero samples) |
| 46 | Filter 0 was used 32 times |
| 47 | Testing basn0g08.png: PASS (3 zero samples) |
| 48 | Filter 1 was used 9 times |
| 49 | Filter 4 was used 23 times |
| 50 | Testing basn0g16.png: PASS (1 zero samples) |
| 51 | Filter 1 was used 1 times |
| 52 | Filter 2 was used 31 times |
| 53 | Testing basn2c08.png: PASS (6 zero samples) |
| 54 | Filter 1 was used 5 times |
| 55 | Filter 4 was used 27 times |
| 56 | Testing basn2c16.png: PASS (592 zero samples) |
| 57 | Filter 1 was used 1 times |
| 58 | Filter 4 was used 31 times |
| 59 | Testing basn3p01.png: PASS (512 zero samples) |
| 60 | Filter 0 was used 32 times |
| 61 | Testing basn3p02.png: PASS (448 zero samples) |
| 62 | Filter 0 was used 32 times |
| 63 | Testing basn3p04.png: PASS (544 zero samples) |
| 64 | Filter 0 was used 32 times |
| 65 | Testing basn3p08.png: PASS (4 zero samples) |
| 66 | Filter 0 was used 32 times |
| 67 | Testing basn4a08.png: PASS (32 zero samples) |
| 68 | Filter 1 was used 1 times |
| 69 | Filter 4 was used 31 times |
| 70 | Testing basn4a16.png: PASS (64 zero samples) |
| 71 | Filter 0 was used 1 times |
| 72 | Filter 1 was used 2 times |
| 73 | Filter 2 was used 1 times |
| 74 | Filter 4 was used 28 times |
| 75 | Testing basn6a08.png: PASS (160 zero samples) |
| 76 | Filter 1 was used 1 times |
| 77 | Filter 4 was used 31 times |
| 78 | Testing basn6a16.png: PASS (1072 zero samples) |
| 79 | Filter 1 was used 4 times |
| 80 | Filter 4 was used 28 times |
| 81 | libpng passes test |
| 82 | |
| 83 | Willem van Schaik |
| 84 | <willem@schaik.com> |
| 85 | October 1999 |