PIC的decompressor里有个选项
Assume Normalized YUV
This setting lets you control how images are decoded during playback to the RGB or YUV colorspaces.
When decompressing to the YUV colorspace, if the “PICAVI” APP1 marker is found, the codec will assume the frame was encoded correctly regardless of the Assume Normalized YUV setting.
Otherwise if the Assume Normalized YUV checkbox is checked, that setting indicates that the frame was encoded correctly, and corrections will not be applied. Otherwise, the codec will assume the frame was encoded incorrectly, and apply changes.