Assume CMYK if App14 marker is missing

image-rs / jpeg-decoder

JPEG decoder written in Rust

Apache License 2.0

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Closed vstroebel closed 2 years ago

vstroebel commented 2 years ago

Assume image is encoded as CMYK if App14 marker (Adobe colortransform) is missing.

This is the same behavior than libjpeg/mozjpeg (See jdapimin.c) and fixes #219