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A single-frame wide dynamic enhancement method based on the adjustment of bright area and dark area respectively

A wide dynamic and dark area technology, applied to color TV parts, TV system parts, TVs, etc., can solve the problems of small adjustment of bright areas, loss of image information, no obvious improvement, etc., and the effect is obvious , the effect of reducing the operation steps

Active Publication Date: 2019-03-15
CHENGDU CORPRO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most SOCs have integrated single-frame wide dynamic adjustment algorithms, but most SOC adjustment algorithms only adjust dark areas, and do not adjust much or have no significant improvement in bright areas, which cannot meet complex and changeable actual application environments. , especially in bright and dark scenes, overexposure will cause image information to be lost. Therefore, it is necessary to further improve the details of bright areas in wide dynamic scenes and further improve the existing technology.

Method used

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  • A single-frame wide dynamic enhancement method based on the adjustment of bright area and dark area respectively
  • A single-frame wide dynamic enhancement method based on the adjustment of bright area and dark area respectively
  • A single-frame wide dynamic enhancement method based on the adjustment of bright area and dark area respectively

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Embodiment Construction

[0032] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0033] Such as figure 1 As shown, a single-frame wide dynamic enhancement method based on the adjustment of bright areas and dark areas respectively, grabs the image img from the video stream and processes it. The processing process includes low-brightness area adjustment step S1, high-brightness area adjustment step S2 and fusion step S3;

[0034] The step S1 of adjusting the low brightness area includes the following sub-steps:

[0035] S101. Take the minimum value of the color component of each pixel in the original image img, and record the obtained result as minRGB1; further, minRGB1 can be understood as an array composed of the minimum value of the color component of each pixel in the image.

[0036] S102. Invert minRGB1, and record...

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Abstract

The invention discloses a single-frame wide dynamic enhancement method based on the separate adjustment of bright areas and dark areas, which includes: grabbing an image input from a video stream, and processing the input image, and the processing process includes a low-brightness area adjustment step S1 , high brightness area adjustment step S2 and fusion step S3. The present invention provides a single-frame wide dynamic enhancement method based on the adjustment of bright areas and dark areas respectively, which is suitable for the processing of darker scenes and brighter scenes. In wide dynamic scenes, dark areas and bright areas can be adjusted All areas are adjusted, especially for bright areas, the effect is more obvious, and some operators are realized by look-up table, which reduces the operation steps.

Description

technical field [0001] The invention relates to a single-frame wide dynamic enhancement method based on the separate adjustment of bright areas and dark areas. Background technique [0002] At present, most SOCs have integrated single-frame wide dynamic adjustment algorithms, but most SOC adjustment algorithms only adjust dark areas, and do not adjust much or have no significant improvement in bright areas, which cannot meet complex and changeable actual application environments. , especially in bright and dark scenes, overexposure may cause loss of image information. Therefore, it is necessary to further improve the details of bright areas in wide dynamic scenes and further improve the existing technology. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a single-frame wide dynamic enhancement method based on the adjustment of bright and dark areas separately, which can adjust the high-br...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/217H04N5/235H04N5/243H04N23/76
CPCH04N25/63H04N23/741H04N23/76H04N23/71
Inventor 刘军向多春沈建
Owner CHENGDU CORPRO TECH CO LTD