Patent ID: 6404919
Filing Date: 2002-06-11
Classification: G06T,H04N

Abstract:
An image processor comprising:a decider which decides based on image data of pixels included in a block whether the block has character attribute or non-character attribute; a binarizer which binarizes the image data; a first encoder which encodes the image data with block truncation coding; a second encoder which encodes the image data which have been encoded by said first encoder; and a controller for controlling said binarizer, said first encoder, and said second encoder, wherein said controller makes said binarizer binarize the image data of the block and makes said first and second encoders encode the binarized image data of block when said decider decides that the block has character attribute, and wherein said controller makes said first and second encoders encode the image data of the block without binarization of the image data of the block by said binarizer when said decider decides that the block has non-character attribute.