Draft: Speedup downscaling of JPEG2000 images
Add the ability to set image prescaling to Stream classes. Use this to set prescale JPEG2000 images via a native decoder before decompressing and scaling them.
Fixes #507
Edited by Ilya Pominov
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Add the ability to set image prescaling to Stream classes. Use this to set prescale JPEG2000 images via a native decoder before decompressing and scaling them.
Fixes #507