Method of processing a stored image
View Patent ↗An effects processor for an effects module. The effects processor comprises a RISC processor, a DSP for fast integer multiplication and a small memory. The processor uses VARK language and a lookup table of VARK scripts to apply a variety of effects to images stored outside the effects module. The effects processor includes a serial bus interface which communicates with the Serial Bus of a compact printer system comprising one or more further modules. The Serial Bus communicates power and data between the effects module and one or more of the further modules. Methods of compositing, convolving, warping and color substitution are described.
1. In a compact printer system, a method of processing a stored image by an effects module, utilizing VARK language software on a CPU, said method including the steps of:
reading said stored image from a storage location to an image processor;
compositing a foreground image with said stored image, including the steps of;
reading an α channel value;
reading said stored image;
reading said foreground;
combining a proportion of said stored image and a proportion of said foreground to produce said resultant image; and
writing a resultant image to said storage location.
2. The method of claim 1 wherein said a channel has values from 0 to 255 corresponding to a range 0 to 1.
3. The method of claim 1 wherein said compositing process produces a Regular Composite, wherein said resultant image=stored image+(foreground−stored image)α.
4. The method of claim 1 wherein said compositing process produces an Associated Composite, wherein said resultant image=foreground+(1−α) stored image.