EFM and image mode (RGB-CMYK)

[guest]

Its good idea to add in configuration for EFM restriction for some images mode. For example if user upload jpg in CMYK mode, IE show as broken image. getimagesize() tells for CMYK image mode, channels=4 and for RGB image mode channels=3

Something like:

$IMConfig['allowed_image_modes']='RGB,CMYK' // enable all modes (default)

or

$IMConfig['allowed_image_modes']='RGB'// enable only RGB mode