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Method and device for image processing

A technology of image processing and image data, applied in the field of image processing

Active Publication Date: 2019-06-11
SHENZHEN YIHUA COMP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the embodiment of the present invention is to propose an image processing method and device, aiming to solve the problem of how to improve the effect of corrected images

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  • Method and device for image processing
  • Method and device for image processing

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Embodiment Construction

[0046] The embodiments of the present invention will be further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the embodiments of the present invention, rather than to limit the embodiments of the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the embodiments of the present invention.

[0047] refer to figure 1 , figure 1 It is a schematic flowchart of an image processing method provided by an embodiment of the present invention.

[0048] Such as figure 1 As shown, the image processing method includes:

[0049] Step 101, setting AD gain parameters, AD bias parameters, constant current source DC parameters and constant current source GS parameters in sequence, and the AD bias parameters are set to positive bias;

[0050] Preferably, the sequentia...

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Abstract

The invention discloses an image processing method and device. The method includes: sequentially setting AD gain parameters, AD bias parameters, constant current source DC parameters and constant current source GS parameters, the AD bias parameters are set to positive bias; acquiring bright data and dark data; collecting image data, and process the image data according to the bright data, the dark data and a preset correction formula; and output the corrected image data. The present invention aims at the poor consistency of the original image of the cis image sensor. In actual application, adjusting the exposure time is consistent with the duration of obtaining bright and dark data. The exposure duration can be adjusted by itself according to the application of specific algorithms; Increase the size of dark data, while the size of bright data is fixed according to the exposure time, which can make the correction formula w i -d i The value is relatively smaller, and the y value obtained by the principle of the correction formula can reduce the image difference.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of image processing, and in particular, to an image processing method and device. Background technique [0002] The application of the CIS image sensor requires the AD chip to complete sampling and analog-to-digital conversion, and the constant current source chip to complete the driving and lighting of the light source. The AD chip has two registers, gain and bias, and the bias can be set to positive bias and negative bias. The constant current source chip has DC parameters and GS parameters. The DC parameters provide the current to drive the light source, and the GS parameters provide the exposure time of the light source in the form of PWM waves. The image collected by CIS must be corrected to meet the image consistency requirements of the application. [0003] When processing the corrected image in the algorithm part, it is often necessary to eliminate the background data. At pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/235H04N5/243H04N23/76
CPCH04N23/73H04N23/76
Inventor 杨博刘华
Owner SHENZHEN YIHUA COMP
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