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