Apparatus 20 is disclosed for rendering an object-based image one pixel at a time in scanline order. The apparatus 20 comprises an optimisation module 550 for generating a set of compositing messages during a first pixel in a run of pixels between adjacent edges of one or two objects, and for generating a reduced set of compositing messages from the set during subsequent pixels in the run of pixels. The apparatus 20 further comprises a pixel compositing module 700 which in addition to compositing the first pixel in the run of pixels also stores a result or partial result of the compositing of the first pixel. The pixel compositing module 700 utilises the reduced set of compositing messages and the stored result or partial result to composite pixels in the run subsequent to the first pixel.

 
Web www.patentalert.com

< Control apparatus for vibration type actuator and electronic apparatus using it

< Color liquid crystal display device

> Portable electronic apparatus, image processing method, photographic apparatus, and computer readable recording medium

> Area sensor, image input apparatus having the same, and method of driving the area sensor

~ 00218