Image processing device and image processing method

摘要

An image processing device that reduces influence by a compressibility error of image data generated by a previous frame on output image data is disclosed. The image processing device generates a compressibility error prediction value, based on an input image data, generates substitute image data of the input image data, based on an emergence tendency of the compressibility error, selects the input image data or the substitute image data to set a result as current image data, generates next state image data, compresses the next state image data to generate compressed state image data, stores the compressed state image data in a frame memory, generates the state image data by reading the compressed state image data from the frame memory and decompressing the same, and generates output image data, based on the current image data and the state image data.

主权项

1. An image processing device comprising:
state image data generation means for generating next state image data for use at the time of next frame processing, based on current image data and state image data; image compression means for compressing the next state image data to generate compressed state image data; a frame memory that stores the compressed state image data; image decompression means for reading, from the frame memory, the compressed state image data stored at the time of previous frame processing, and decompressing the data to generate the state image data; output image data generation means for generating output image data, based on the current image data and the state image data; compressibility error prediction means for generating a compressibility error prediction value of a compressibility error caused by the image compression means and the image decompression means, based on input image data; substitute image data generation means for generating substitute image data for the input image data, based on an emergence tendency of the compressibility error; and current image data selection means for selecting any one of the input image data and the substitute image data to set a result as the current image data.