1 2pngsuite 3-------- 4Copyright (c) Willem van Schaik, 1999, 2011, 2012 5Two images (ftbbn0g01.png and ftbbn0g02.png) are by Glenn Randers-Pehrson, 2012 6 7Permission to use, copy, modify, and distribute these images for any 8purpose and without fee is hereby granted. 9 10The 15 "bas*.png" images are part of the much larger PngSuite test-set of 11images, available for developers of PNG supporting software. The 12complete set, available at http:/www.schaik.com/pngsuite/, contains 13a variety of images to test interlacing, gamma settings, ancillary 14chunks, etc. 15 16The "ft*.png" images are "free/libre" replacements for the transparent 17corresponding t*.png images in the PngSuite. 18 19The "i*.png" images are the same images, but interlaced. 20 21The images in this directory represent the basic PNG color-types: 22grayscale (1-16 bit deep), full color (8 or 16 bit), paletted 23(1-8 bit) and grayscale or color images with alpha channel. You 24can use them to test the proper functioning of PNG software. 25 26 filename depth type 27 ------------ ------ -------------- 28 basn0g01.png 1-bit grayscale 29 basn0g02.png 2-bit grayscale 30 basn0g04.png 4-bit grayscale 31 basn0g08.png 8-bit grayscale 32 basn0g16.png 16-bit grayscale 33 basn2c08.png 8-bit truecolor 34 basn2c16.png 16-bit truecolor 35 basn3p01.png 1-bit paletted 36 basn3p02.png 2-bit paletted 37 basn3p04.png 4-bit paletted 38 basn3p08.png 8-bit paletted 39 basn4a08.png 8-bit gray with alpha 40 basn4a16.png 16-bit gray with alpha 41 basn6a08.png 8-bit RGBA 42 basn6a16.png 16-bit RGBA 43 44 ftbbn0g01.png 1-bit grayscale, black bKGD 45 ftbbn0g02.png 2-bit grayscale, black bKGD 46 ftbbn0g04.png 4-bit grayscale, black bKGD 47 ftbbn2c16.png 16-bit truecolor, black bKGD 48 ftbbn3p08.png 8-bit paletted, black bKGD 49 ftbgn2c16.png 16-bit truecolor, gray bKGD 50 ftbgn3p08.png 8-bit paletted, gray bKGD 51 ftbrn2c08.png 8-bit truecolor, red bKGD 52 ftbwn0g16.png 16-bit gray, white bKGD 53 ftbwn3p08.png 8-bit paletted, white bKGD 54 ftbyn3p08.png 8-bit paletted, yellow bKGD 55 ftp0n0g08.png 8-bit grayscale, opaque 56 ftp0n2c08.png 8-bit truecolor, opaque 57 ftp0n3p08.png 8-bit paletted, opaque 58 ftp1n3p08.png 8-bit paletted, no bKGD 59 60Here is the correct result of typing "pngtest -m bas*.png" in 61this directory: 62 63Testing basn0g01.png: PASS (524 zero samples) 64 Filter 0 was used 32 times 65Testing basn0g02.png: PASS (448 zero samples) 66 Filter 0 was used 32 times 67Testing basn0g04.png: PASS (520 zero samples) 68 Filter 0 was used 32 times 69Testing basn0g08.png: PASS (3 zero samples) 70 Filter 1 was used 9 times 71 Filter 4 was used 23 times 72Testing basn0g16.png: PASS (1 zero samples) 73 Filter 1 was used 1 times 74 Filter 2 was used 31 times 75Testing basn2c08.png: PASS (6 zero samples) 76 Filter 1 was used 5 times 77 Filter 4 was used 27 times 78Testing basn2c16.png: PASS (592 zero samples) 79 Filter 1 was used 1 times 80 Filter 4 was used 31 times 81Testing basn3p01.png: PASS (512 zero samples) 82 Filter 0 was used 32 times 83Testing basn3p02.png: PASS (448 zero samples) 84 Filter 0 was used 32 times 85Testing basn3p04.png: PASS (544 zero samples) 86 Filter 0 was used 32 times 87Testing basn3p08.png: PASS (4 zero samples) 88 Filter 0 was used 32 times 89Testing basn4a08.png: PASS (32 zero samples) 90 Filter 1 was used 1 times 91 Filter 4 was used 31 times 92Testing basn4a16.png: PASS (64 zero samples) 93 Filter 0 was used 1 times 94 Filter 1 was used 2 times 95 Filter 2 was used 1 times 96 Filter 4 was used 28 times 97Testing basn6a08.png: PASS (160 zero samples) 98 Filter 1 was used 1 times 99 Filter 4 was used 31 times 100Testing basn6a16.png: PASS (1072 zero samples) 101 Filter 1 was used 4 times 102 Filter 4 was used 28 times 103libpng passes test 104 105Willem van Schaik 106<willem at schaik.com> 107October 1999 108
