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README |
pngsuite -------- (c) Willem van Schaik, 1999 Permission to use, copy, and distribute these images for any purpose and without fee is hereby granted. These 15 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 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 Here is the correct result of typing "pngtest -m *.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 <willem@schaik.com> October 1999