Method and system for image processing

A technology of image processing and processing method, which is applied in the field of image processing, can solve the problem of insufficient camera exposure speed, etc., and achieve the effect of speeding up the exposure speed and increasing the speed

Inactive Publication Date: 2013-03-20
QIHAN TECH
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Problems solved by technology

[0004] In order to solve the problem that the camera exposure speed is not fast e

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  • Method and system for image processing
  • Method and system for image processing

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[0028] Such as figure 1 As shown, the present invention discloses an image processing method, including an image exposure adjustment processing method, and the image exposure adjustment processing method includes steps S1 to S3.

[0029] In step S1, the average brightness of the video data is obtained in the exposure measurement area of ​​the video data.

[0030] In step S2, the brightness average value is compared with the mode brightness average value. If the brightness average value is less than the mode brightness average value, then the exposure parameter is increased, and step S3 is executed; if the brightness average value is greater than the mode brightness average value, then the exposure parameter is decreased , And execute step S3; if the average brightness is the same as the average brightness of the mode, then the exposure parameters are not changed.

[0031] In step S3, the modified exposure parameters are transmitted to the image sensor.

[0032] Such as figure 2 As sh...

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Abstract

The invention provides a method for image processing. The method for the image processing comprises an image exposure adjusting processing method. The image exposure adjusting processing method includes the following steps: A. Acquiring a brightness average value of video data in an exposure measurement area of the video data. B. Comparing the brightness average value with a mode brightness average value, increasing exposure parameters and carrying out step C if the brightness average value is smaller than the mode brightness average value; decreasing the exposure parameters and carrying out the step C if the brightness average value is bigger than the mode brightness average value; maintaining the exposure parameters if the brightness average value is equal to the mode brightness average value. C. Transmitting the changed exposure parameters to an image sensor. The method and the system for the image processing have the advantages that the method for the image processing is capable of significantly increasing exposure response speed and improving camera exposure speed.

Description

technical field [0001] The invention relates to the field of image processing, in particular to an image processing method and system. Background technique [0002] In today's intelligent security industry, due to the need for more intelligent processing of video, such as intelligent video recognition, the requirements for image quality are getting higher and higher, especially when high-definition cameras are becoming more and more common, how to adapt to different video Obtaining high-quality images due to rapid changes in occasions has become a research topic for various manufacturers. [0003] The traditional camera exposure uses the CPU in the dedicated ASIC chip to calculate the brightness value of the output video data, and then writes the obtained exposure parameters into the open register of the image sensor through the serial communication interface, and then the image sensor will be in the next Frame response output video data. Due to the limited computing speed...

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Application Information

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IPC IPC(8): H04N5/235H04N5/243H04N9/04
Inventor 林绿德庄永军兰兵华
Owner QIHAN TECH
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