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Image signal processor, image processing system and image processing method

An image processing and image signal technology, applied in the field of image processing, can solve the problems of increasing memory overhead, increasing image signal processor chip area, increasing chip cost, etc.

Active Publication Date: 2010-05-19
VIMICRO ELECTRONICS CORP
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Problems solved by technology

A plurality of the above-mentioned large-capacity memories may be required in the image signal processor, and the size of the memory will increase due to the increase of the height of the pixel block based on the algorithm of each image processing sub-module, and also because the image signal processor needs to support The increase of the maximum image width increases, and the color space based on the algorithm of the image processing sub-module will further increase the overhead of the memory, which will greatly increase the area of ​​the image signal processor chip, thereby increasing the cost of the chip

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  • Image signal processor, image processing system and image processing method
  • Image signal processor, image processing system and image processing method

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Embodiment Construction

[0069] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0070] see figure 2 , figure 2 It is a schematic structural diagram of an image signal processor according to an embodiment of the present invention, and the image signal processor includes: a memory 101, an access module 102, and an image processing module 103;

[0071] The memory 101 has a first numerical value of pixel storage space;

[0072] The access module 102 is configured to store the received image pixels to be processed in the memory 101, and obtain a first pixel block from the image pixels to be processed stored in the memory 101; The access module 102 manages the input and output of pixels of the memory 101 , or manages the read-write mechanism of the storage space of the memory 101 .

[0073] The image processing module 103 is configured to perform arithmetic processing on the first pix...

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Abstract

The invention provides an image signal processor, an image processing system and an image processing method; the image signal processor comprises a memory which is provided with a first numerical value pixel storage space; an access module which is used for storing the received image pixel to be processed to the memory and obtaining a first pixel block from the image pixel which is stored in the memory and is to be processed; and an image processing module for carrying out arithmetic processing to the first pixel block and obtaining a target output pixel block. The invention can effectively save the storage space of the image signal processor and reduce the chip cost.

Description

technical field [0001] The invention relates to the field of image processing, in particular to an image signal processor, an image processing system and an image processing method. Background technique [0002] Image Signal Processor (ISP, Image Signal Processor) is the core processing module in digital camera (Digital Camera) and other equipment. Noise, level adjustment, sharpening, etc., so as to present users with better image quality. [0003] Traditional image signal processors process image pixels based on line-scan, that is, the pixels of each frame of image are sequentially sent to the image from left to right and from top to bottom. Each image processing sub-module in the signal processor performs arithmetic processing on the received image pixels by each image processing sub-module, and each image processing sub-module can operate on the image pixels based on the following three algorithms: 1. Based on the pixel point itself The zero-dimensional filtering (0-D f...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/14H04N5/217
Inventor 蔡进
Owner VIMICRO ELECTRONICS CORP
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