2002-07-01 23:23:46 -04:00
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pngsuite
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--------
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2015-11-12 08:00:12 -05:00
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Copyright (c) Willem van Schaik, 1999, 2011, 2012
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Two images (ftbbn0g01.png and ftbbn0g02.png) are by Glenn Randers-Pehrson, 2012
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2011-02-27 22:19:23 -05:00
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Permission to use, copy, modify, and distribute these images for any
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purpose and without fee is hereby granted.
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2011-05-07 11:52:49 -04:00
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The 15 "bas*.png" images are part of the much larger PngSuite test-set of
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images, available for developers of PNG supporting software. The
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complete set, available at http:/www.schaik.com/pngsuite/, contains
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a variety of images to test interlacing, gamma settings, ancillary
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chunks, etc.
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2010-06-18 19:55:55 -04:00
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The "ft*.png" images are "free/libre" replacements for the transparent
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corresponding t*.png images in the PngSuite.
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The images in this directory represent the basic PNG color-types:
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grayscale (1-16 bit deep), full color (8 or 16 bit), paletted
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(1-8 bit) and grayscale or color images with alpha channel. You
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can use them to test the proper functioning of PNG software.
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filename depth type
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------------ ------ --------------
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basn0g01.png 1-bit grayscale
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basn0g02.png 2-bit grayscale
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basn0g04.png 4-bit grayscale
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basn0g08.png 8-bit grayscale
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basn0g16.png 16-bit grayscale
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basn2c08.png 8-bit truecolor
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basn2c16.png 16-bit truecolor
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basn3p01.png 1-bit paletted
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basn3p02.png 2-bit paletted
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basn3p04.png 4-bit paletted
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basn3p08.png 8-bit paletted
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basn4a08.png 8-bit gray with alpha
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basn4a16.png 16-bit gray with alpha
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basn6a08.png 8-bit RGBA
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basn6a16.png 16-bit RGBA
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2012-06-14 07:28:09 -04:00
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ftbbn0g01.png 1-bit grayscale, black bKGD
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ftbbn0g02.png 2-bit grayscale, black bKGD
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ftbbn0g04.png 4-bit grayscale, black bKGD
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ftbbn2c16.png 16-bit truecolor, black bKGD
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ftbbn3p08.png 8-bit paletted, black bKGD
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ftbgn2c16.png 16-bit truecolor, gray bKGD
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ftbgn3p08.png 8-bit paletted, gray bKGD
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ftbrn2c08.png 8-bit truecolor, red bKGD
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ftbwn0g16.png 16-bit gray, white bKGD
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ftbwn3p08.png 8-bit paletted, white bKGD
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ftbyn3p08.png 8-bit paletted, yellow bKGD
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ftp0n0g08.png 8-bit grayscale, opaque
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ftp0n2c08.png 8-bit truecolor, opaque
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ftp0n3p08.png 8-bit paletted, opaque
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ftp1n3p08.png 8-bit paletted, no bKGD
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2011-02-27 22:19:23 -05:00
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Here is the correct result of typing "pngtest -m bas*.png" in
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this directory:
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Testing basn0g01.png: PASS (524 zero samples)
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Filter 0 was used 32 times
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Testing basn0g02.png: PASS (448 zero samples)
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Filter 0 was used 32 times
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Testing basn0g04.png: PASS (520 zero samples)
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Filter 0 was used 32 times
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Testing basn0g08.png: PASS (3 zero samples)
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Filter 1 was used 9 times
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Filter 4 was used 23 times
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Testing basn0g16.png: PASS (1 zero samples)
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Filter 1 was used 1 times
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Filter 2 was used 31 times
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Testing basn2c08.png: PASS (6 zero samples)
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Filter 1 was used 5 times
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Filter 4 was used 27 times
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Testing basn2c16.png: PASS (592 zero samples)
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Filter 1 was used 1 times
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Filter 4 was used 31 times
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Testing basn3p01.png: PASS (512 zero samples)
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Filter 0 was used 32 times
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Testing basn3p02.png: PASS (448 zero samples)
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Filter 0 was used 32 times
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Testing basn3p04.png: PASS (544 zero samples)
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Filter 0 was used 32 times
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Testing basn3p08.png: PASS (4 zero samples)
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Filter 0 was used 32 times
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Testing basn4a08.png: PASS (32 zero samples)
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Filter 1 was used 1 times
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Filter 4 was used 31 times
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Testing basn4a16.png: PASS (64 zero samples)
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Filter 0 was used 1 times
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Filter 1 was used 2 times
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Filter 2 was used 1 times
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Filter 4 was used 28 times
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Testing basn6a08.png: PASS (160 zero samples)
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Filter 1 was used 1 times
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Filter 4 was used 31 times
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Testing basn6a16.png: PASS (1072 zero samples)
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Filter 1 was used 4 times
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Filter 4 was used 28 times
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libpng passes test
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Willem van Schaik
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<willem@schaik.com>
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October 1999
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