pngsuite--------(c) Willem van Schaik, 1999Permission to use, copy, and distribute these images for any purpose andwithout 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, ancillarychunks, 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. Youcan 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 RGBAHere is the correct result of typing "pngtest -m *.png" inthis directory:Testing basn0g01.png: PASS (524 zero samples) Filter 0 was used 32 timesTesting basn0g02.png: PASS (448 zero samples) Filter 0 was used 32 timesTesting basn0g04.png: PASS (520 zero samples) Filter 0 was used 32 timesTesting basn0g08.png: PASS (3 zero samples) Filter 1 was used 9 times Filter 4 was used 23 timesTesting basn0g16.png: PASS (1 zero samples) Filter 1 was used 1 times Filter 2 was used 31 timesTesting basn2c08.png: PASS (6 zero samples) Filter 1 was used 5 times Filter 4 was used 27 timesTesting basn2c16.png: PASS (592 zero samples) Filter 1 was used 1 times Filter 4 was used 31 timesTesting basn3p01.png: PASS (512 zero samples) Filter 0 was used 32 timesTesting basn3p02.png: PASS (448 zero samples) Filter 0 was used 32 timesTesting basn3p04.png: PASS (544 zero samples) Filter 0 was used 32 timesTesting basn3p08.png: PASS (4 zero samples) Filter 0 was used 32 timesTesting basn4a08.png: PASS (32 zero samples) Filter 1 was used 1 times Filter 4 was used 31 timesTesting 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 timesTesting basn6a08.png: PASS (160 zero samples) Filter 1 was used 1 times Filter 4 was used 31 timesTesting basn6a16.png: PASS (1072 zero samples) Filter 1 was used 4 times Filter 4 was used 28 timeslibpng passes testWillem van Schaik<willem@schaik.com>October 1999