Image processing method and image processing device

Abstract

The present invention provides an image processing method, comprising: obtaining an image block, the image block has a plurality of pixels, and each of the pixels has a plurality of bits; determining that each of the pixels is at the same bit position one or more target bit positions having the same value; and storing the one or more target bit positions and their corresponding bit values ​​as redundant data.

Description

technical field [0001] The present invention relates to an image processing method and an image processing device, in particular to an image processing technology for removing spatial redundancy data (Spatial Redundancy). Background technique [0002] In the field of image processing, the so-called spatially redundant data refers to the strong correlation between adjacent pixels (Pixels) in the same image (Frame). On the other hand, since the amount of original data of an image or video is often too large, in order to facilitate data storage and transmission, the original data must be compressed. Under a fixed compression rate, less data is used to express the same image. the content of the image. Based on the above two points, in the existing image processing, the same image is usually divided into multiple pixel blocks (Block). Each pixel block is a small area composed of a plurality of adjacent pixels, such as 8x2 (16 pixels). Next, image processing is performed sequen...

AI Technical Summary

Problems solved by technology

Therefore, in the subsequent image compression process, high-bit data will be repeatedly coded, which limits the encoding space of low-bit data, and causes low-bit data to be lost in the quantization process, which not only causes the coding of data waste, which reduces the quality of image compression

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