Questions about the JPEG (`/ˈdʒeɪpɛɡ/ jay-peg`) file format. JPEG, seen most often with the `.jpg` extension, is a commonly used method of lossy compression for digital photography.

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Facebook: Ways to preserve image quality of uploaded images?

After uploading an image, Facebook converts it to a new image. Their conversion process introduces artifacts and mottling to the magenta-ish parts of the image. Original image: Facebook's ...