Digital image processing device

Abstract

A digital image processing device in which the transfer data amount is reduced and a plurality of OSD images are superimposed on video includes: a sequencer configured to overlay a plurality of OSD images on each other considering their priorities and store a resultant synthesized image in a work memory; a switch signal generation section configured to generate a switch signal indicating which pixel among pixels of the plurality of OSD images should be displayed as a pixel of the synthesized image based on coordinate data indicating regions in which the plurality of OSD images are displayed and the priorities of the plurality of OSD images; and a conversion section configured to store lookup tables each indicating the relationship between index data and data representing a color corresponding to the index data, convert index data of the synthesized image read from the work memory to data representing a corresponding color using the lookup table corresponding to the switch signal, and output the resultant data.

Dependencies are inferred from the claim text.