Patent ID: 8854394
Filing Date: 2014-10-07
Classification: G06F,G06T

Abstract:
1. An image compositing apparatus that combines N pieces of digital image data including color data, opacity data and distance data, the N pieces of digital image data being input in parallel, in a pixel-by-pixel manner in consideration of the magnitude of distance and opacity, where N is a positive integer equal to or larger than 3, comprising: a sorting unit for receiving distance data of the N pieces of digital image data and N pieces of code data in correspondence with each other at N input ports, the sorting unit including: the sorting unit outputting the sorted code data as rearranging selection signals indicating an order relationship concerning the N pieces of digital image data; a storing unit for storing the color data and the opacity data of each pixel and outputting the color data and the opacity data in synchronism with an output of the rearranging selection signals from the sorting unit; a rearranging unit for receiving the color data and the opacity data of the N pieces of digital image data output from the storing unit at N input ports and rearranging the color data and the opacity data of each pixel in accordance with the rearranging selection signals output from the sorting unit; and an alpha blending unit for combining the rearranged color data and the rearranged opacity data of each pixel in an alpha blending technique in parallel.