Patent ID: 8948530
Filing Date: 2015-02-03
Classification: G06T,H04N

Abstract:
1. An adaptive image compression method comprising: determining, at an adaptive image compression system, characteristics of an image that is to be compressed; determining, at the adaptive image compression system, a quantization scale factor based on the characteristics of the image that is to be compressed; generating an adaptive quantization table corresponding to the image that is to be compressed based on the determined quantization scale factor; and encoding the image that is to be compressed using the generated adaptive quantization table, wherein determining, at the adaptive image compression system, the characteristics of the image that is to be compressed comprises: dividing a gray image corresponding to the image that is to be compressed into a plurality of blocks; calculating a characteristic value of each of the divided blocks; and determining the characteristics of the image that is to be compressed based on the calculated characteristic value of each of the divided blocks.