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