Patent ID: 6650792
Filing Date: 2003-11-18
Classification: H04N

Abstract:
An image processor, comprising: a coefficient memory for storing coefficient data for image enlargement and image reduction; a coefficient read-out controller for reading out corresponding coefficient data from the coefficient memory according to an enlargement/reduction selection signal; a characteristic variable filter for executing filter processing corresponding to either image enlargement processing or image reduction processing according to the coefficient data read out by the coefficient read-out controller; an image memory; a contour correction circuit; and selector groups provided in preceding stage and subsequent stage of each characteristic variable filter and image memory respectively and connected to one another, wherein the selector groups set the processing of an inputted video signal to proceed sequentially through the contour correction circuit, image memory and characteristic variable filter when the enlargement/reduction selection signal is for image enlargement processing and the processing of the inputted video signal is set to proceed sequentially through the characteristic variable filter, image memory and contour correction circuit when the enlargement/reduction selection signal is for image reduction processing.