RGBA32.Effectval translate : t -> int -> int -> unitTranslate image.
val affine : t -> float -> float -> int -> int -> unitApply an affine transformation to an image.
val flip : t -> unitFlip (mirror across horizontal axis).
val greyscale : t -> unitConvert to greyscale.
val sepia : t -> unitConvert to sepia colors.
val lomo : t -> unitLomo effect on colors (see http://en.wikipedia.org/wiki/Lomo_effect ).
val invert : t -> unitInvert colors.
val rotate : t -> float -> unitRotate image by a given angle (in radians).
val box_blur : t -> unitmodule Alpha : sig ... endEffects on alpha channel.