Patent ID: 6968088
Filing Date: 2005-11-22
Classification: G06T

Abstract:
1. An image processing apparatus for encoding image data indicating an image including a first region and a second region, comprising: an encoding unit, adapted to encode the image data at a first compression ratio to obtain first encoded image data, wherein the image data within the first region is encoded prior to the image data within the second region, said encoding unit terminating the encoding processing when a data amount of the first encoded image data exceeds a predetermined amount; a detecting unit, adapted to detect whether or not the encoded data corresponding to the second region is included in the first encoded image data; and a control unit, adapted to make said encoding unit encode the image data at a second compression ratio higher than the first compression ratio to obtain second encoded image data, when the encoded data corresponding to the second region is not included in the first encoded image data, wherein said encoding unit is adapted to transform the image using discrete wavelet transformation, quantize the transformed image, bit-shift quantized data corresponding to the first region, so as to encode quantized data corresponding to the first region prior to quantized data corresponding to the second region, and encode code of each quantization index using entropy encoding.