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Based on the PNGsuite. These are basic test images in all of the standard PNG b/w, color and paletted formats. The three rows of images must look identical. If they do not, the PNG supporting code in your software is broken. The first row is actually a single image (snapshot) and is the reference point. The second row contains non-interlaced samples and the third row interlaced samples.

PNGBASxx.mng
Some or all of the following images were used: basn6a16 & basi6a16 - 3x16 bits rgb color + 16 bit alpha-channel basn6a08 & basi6a08 - 3x8 bits rgb color + 8 bit alpha-channel basn4a16 & basi4a16 - 16 bit grayscale + 16 bit alpha-channel basn4a08 & basi4a08 - 8 bit grayscale + 8 bit alpha-channel
basn3p08 & basi3p08 - 8 bit (256 color) paletted
basn3p04 & basi3p04 - 4 bit (16 color) paletted
basn3p02 & basi3p02 - 2 bit (4 color) paletted
basn3p01 & basi3p01 - 1 bit (2 color) paletted
basn2c16 & basi2c16 - 3x16 bits rgb color
basn2c08 & basi2c08 - 3x8 bits rgb color
basn0g16 & basi0g16 - 16 bit (64k level) grayscale
basn0g08 & basi0g08 - 8 bit (256 level) grayscale
basn0g04 & basi0g04 - 4 bit (16 level) grayscale
basn0g02 & basi0g02 - 2 bit (4 level) grayscale
basn0g01 & basi0g01 - black & white

Samples on this page are Copyright © G. Juyn Images used in the samples are Copyright © Willem van Schaik

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