Image preprocessing VLSI structure applied to JPEG2000

Abstract

The invention discloses an image preprocessing VLSI (Very Large Scale Integration) structure applied to JPEG2000 (Joint Photographic Experts Group 2000). The image preprocessing VLSI structure comprises an image blocking module, an image blocking cache module, an image layering module, a level translation normalization module, a color conversion module, a data storage module and a communication module. The image blocking module is connected with the image blocking cache module; the output end of the image block caching module is connected with the input end of the image layering module; the output end of the image layering module is connected with the input end of the level translation normalization module, the output end of the level translation normalization module is connected with theinput end of the color conversion module, the output end of the color conversion module is connected with the input end of the data storage module, and the communication module is responsible for communicating with an upper computer and controlling the other modules. According to the invention, the data is stored through real double read-write port caching and by adopting a new data storage mode,various image specifications can be compatibly processed, the processing speed is accelerated, and the high efficiency and flexibility of a hardware circuit are improved.

Description

technical field [0001] The invention belongs to the design category of Very Large Scale Integration (VLSI for short), and relates to a highly efficient and flexible image preprocessing VLSI structure applied to JPEG2000. Background technique [0002] With the rapid development of photoelectric sensor technology, the image resolution increases rapidly, and the amount of image data increases rapidly. The massive high-definition image data puts enormous pressure on the limited storage capacity and transmission bandwidth. However, these original image data contain a lot of redundancy. remaining information. In order to save storage resources and transmission bandwidth, the original image data should be compressed to a certain extent to remove redundant information without affecting the acquisition of image information. The technology that can express high-quality original image data with less bit data is image compression coding technology. [0003] Image preprocessing is the ...

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Problems solved by technology

[0004] For the above-mentioned prior art, considering the high complexity of hardware circuit design, difficult implementation and poor compatibility for processing multiple image formats, the purpose of the present invention is to provide a VLSI structure for image preprocessing applied to JPEG2000 to solve the problem of The existing image preprocessing circuit has complex structure and low image processing efficiency

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