LqrImageType — carver objects image type (colour model) specification
The LqrCarver objects use knowledge about the image type they're working on in order to compute
correctly some quantities (e.g. the brightness) for the automatic feature detection. Image types
are set automatically by the constructors, but they can also be specified manually using
quantities of the type LqrImageType, which is an enum which can
take these values:
LQR_GREY_IMAGELQR_GREYA_IMAGELQR_RGB_IMAGELQR_RGBA_IMAGELQR_CMY_IMAGELQR_CMYK_IMAGELQR_CMYKA_IMAGELQR_CUSTOM_IMAGE
Use the function lqr_carver_set_image_type(3) to set the image type of
a carver, and the function lqr_carver_get_image_type(3) to read it out.