Playing with Image Compression

Snowman — three images in three formats

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JPG

GIF

PNG
Snowman1 saved as low quality JPG Snowman1 saved as 32 color GIF Snowman1 saved as PNG
300x329px, 7 quality — 13K 300x329px, 32 colors, dither — 42k 300x329px, PNG-8, 128 colors — 60k
   

JPG

GIF

PNG
Snowman2 saved as high quality JPG Snowman2 saved as 64 color GIF Snowman2 saved as PNG
300x319px, 60 quality — 12.31K 300x319px, 64 colors, no dither — 14.94k 300x319px, PNG-8, 64 colors — 13.07k
   

JPG

GIF

PNG
Snowman2 saved as high quality JPG Snowman2 saved as 64 color GIF Snowman2 saved as PNG
300x329px, 10 quality — 8.80K 300x329px, 32 colors, dither — 6.37k 300x329px, PNG-8, 32 colors — 6.26k

©Joe Buchwald Gelles

jbgelles@gmail.com
February 7, 2011