Convert to an RGBA image.
Does nothing if the image is already an RGBA image. If it's a paletted image, decodes the colors using currently assigned palette. If it's an alpha mask, fills the image with white.
Self if already in RGBA format, or a newly made image by converting the data.
See Implementation
Convert to an RGBA image.
Does nothing if the image is already an RGBA image. If it's a paletted image, decodes the colors using currently assigned palette. If it's an alpha mask, fills the image with white.