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New book on Website Optimization Secrets
In this month's Bandwidth Report, as the US approaches 50% broadband penetration for active Internet users, there appears to be a broadband saturation plateau at 70% to 75% percent. We talked to some experts to find out why. Dithering can be both a blessing and a curse when optimizing images. At lower bit-depths GIFs and PNGs can appear banded. Dithering can smooth out these jarring color transitions, but at the price of increased file size. However, combined with "lossy" compression, weighted optimization, and histogram influencing, dithering can allow you to use lower bit-depths.
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Last modified: November 09, 2004