Image ConvertersLesson 227Free preview

JPG to GIF

This lesson is part of Web Developer Tools · All levels

Summary

Conversion of JPG to GIF converts photos to a palette of up to 256 colors, so the fine gradation often turns into a color tape. Dithering can mask the effect, but the detail remains diminished. GIFs are only appropriate if you need long-standing compatibility or want to incorporate images into simple animation.

Key points

GIFs limit the color to 256 per frame
Photos with fine gradations are vulnerable to appeal
Dithering adds a dot pattern to disguise the appeal
GIF transparency is only one bit, with no semi-transparent edges.
For photos, JPG or WebP gives better results

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