PngSuite - Ancillary chunks / PNG-files

ccwn2c08 - chroma chunk w:0.3127,0.3290 r:0.64,0.33 g:0.30,0.60 b:0.15,0.06     ccwn3p08 - chroma chunk w:0.3127,0.3290 r:0.64,0.33 g:0.30,0.60 b:0.15,0.06     cdfn2c08 - physical pixel dimensions, 8x32 flat pixels     cdhn2c08 - physical pixel dimensions, 32x8 high pixels     cdsn2c08 - physical pixel dimensions, 8x8 square pixels     cdun2c08 - physical pixel dimensions, 1000 pixels per 1 meter     ch1n3p04 - histogram 15 colors     ch2n3p08 - histogram 256 colors     cm0n0g04 - modification time, 01-jan-2000 12:34:56     cm7n0g04 - modification time, 01-jan-1970 00:00:00     cm9n0g04 - modification time, 31-dec-1999 23:59:59     cs3n2c16 - color, 13 significant bits     cs3n3p08 - paletted, 3 significant bits     cs5n2c08 - color, 5 significant bits     cs5n3p08 - paletted, 5 significant bits     cs8n2c08 - color, 8 significant bits (reference)     cs8n3p08 - paletted, 8 significant bits (reference)     ct0n0g04 - no textual data     ct1n0g04 - with textual data     ctzn0g04 - with compressed textual data     cten0g04 - international UTF-8, english     ctfn0g04 - international UTF-8, finnish     ctgn0g04 - international UTF-8, greek     cthn0g04 - international UTF-8, hindi     ctjn0g04 - international UTF-8, japanese     exif2c08 - chunk with jpeg exif data

Willem van Schaik, Calgary, April 2011 http://www.schaik.com/wwwillem.html