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