ELECTRONIC DEVICE AND METHOD FOR BLOCK-BASED IMAGE PROCESSING

摘要

The electronic device comprises electronic circuitry which functionally comprises a boundary detector, an analyzer and an includer. The boundary detector is operative to determine a boundary ( 47 ) between a relevant area ( 45 ) and an irrelevant area ( 43 ) of an image ( 41 ). The analyzer is operative to analyze blocks ( 55 ) of pixels intersected by the boundary ( 47 ). The includer is operative to include blocks ( 55 ) of pixels intersected by the boundary ( 47 ) in the relevant area ( 45 ) in dependence upon the analysis. The invention further relates to a method of determining a relevant area of an image for block-based image processing. The method comprises the steps of determining a boundary between a relevant and an irrelevant area of an image, analyzing blocks of pixels intersected by the boundary and including blocks of pixels intersected by the boundary in the relevant area in dependence upon the analysis. The invention also relates to control software for making a programmable device operative to perform the method of the invention and to electronic circuitry for use in the device of the invention.