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Documentation: image/png/testdata/pngsuite

     1	
     2	pngsuite
     3	--------
     4	(c) Willem van Schaik, 1999
     5	
     6	Permission to use, copy, and distribute these images for any purpose and
     7	without fee is hereby granted.
     8	
     9	These 15 images are part of the much larger PngSuite test-set of 
    10	images, available for developers of PNG supporting software. The 
    11	complete set, available at http:/www.schaik.com/pngsuite/, contains 
    12	a variety of images to test interlacing, gamma settings, ancillary
    13	chunks, etc.
    14	
    15	The images in this directory represent the basic PNG color-types:
    16	grayscale (1-16 bit deep), full color (8 or 16 bit), paletted
    17	(1-8 bit) and grayscale or color images with alpha channel. You
    18	can use them to test the proper functioning of PNG software.
    19	
    20	    filename      depth type
    21	    ------------ ------ --------------
    22	    basn0g01.png  1-bit grayscale
    23	    basn0g02.png  2-bit grayscale
    24	    basn0g04.png  4-bit grayscale
    25	    basn0g08.png  8-bit grayscale
    26	    basn0g16.png 16-bit grayscale
    27	    basn2c08.png  8-bit truecolor
    28	    basn2c16.png 16-bit truecolor
    29	    basn3p01.png  1-bit paletted
    30	    basn3p02.png  2-bit paletted
    31	    basn3p04.png  4-bit paletted
    32	    basn3p08.png  8-bit paletted
    33	    basn4a08.png  8-bit gray with alpha
    34	    basn4a16.png 16-bit gray with alpha
    35	    basn6a08.png  8-bit RGBA
    36	    basn6a16.png 16-bit RGBA
    37	
    38	Here is the correct result of typing "pngtest -m *.png" in
    39	this directory:
    40	
    41	Testing basn0g01.png: PASS (524 zero samples)
    42	 Filter 0 was used 32 times
    43	Testing basn0g02.png: PASS (448 zero samples)
    44	 Filter 0 was used 32 times
    45	Testing basn0g04.png: PASS (520 zero samples)
    46	 Filter 0 was used 32 times
    47	Testing basn0g08.png: PASS (3 zero samples)
    48	 Filter 1 was used 9 times
    49	 Filter 4 was used 23 times
    50	Testing basn0g16.png: PASS (1 zero samples)
    51	 Filter 1 was used 1 times
    52	 Filter 2 was used 31 times
    53	Testing basn2c08.png: PASS (6 zero samples)
    54	 Filter 1 was used 5 times
    55	 Filter 4 was used 27 times
    56	Testing basn2c16.png: PASS (592 zero samples)
    57	 Filter 1 was used 1 times
    58	 Filter 4 was used 31 times
    59	Testing basn3p01.png: PASS (512 zero samples)
    60	 Filter 0 was used 32 times
    61	Testing basn3p02.png: PASS (448 zero samples)
    62	 Filter 0 was used 32 times
    63	Testing basn3p04.png: PASS (544 zero samples)
    64	 Filter 0 was used 32 times
    65	Testing basn3p08.png: PASS (4 zero samples)
    66	 Filter 0 was used 32 times
    67	Testing basn4a08.png: PASS (32 zero samples)
    68	 Filter 1 was used 1 times
    69	 Filter 4 was used 31 times
    70	Testing basn4a16.png: PASS (64 zero samples)
    71	 Filter 0 was used 1 times
    72	 Filter 1 was used 2 times
    73	 Filter 2 was used 1 times
    74	 Filter 4 was used 28 times
    75	Testing basn6a08.png: PASS (160 zero samples)
    76	 Filter 1 was used 1 times
    77	 Filter 4 was used 31 times
    78	Testing basn6a16.png: PASS (1072 zero samples)
    79	 Filter 1 was used 4 times
    80	 Filter 4 was used 28 times
    81	libpng passes test
    82	
    83	Willem van Schaik
    84	<willem@schaik.com>
    85	October 1999

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