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Image processing method and device, electronic equipment and storage medium

An image processing and sample image technology, applied in the field of image processing, can solve the problems of low accuracy of white balance adjustment and the limitation of application scenarios of white balance adjustment methods, and achieve the effects of avoiding artificial feature design, expanding data scale, and accurate output results

Pending Publication Date: 2021-06-29
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In practice, it is found that because the white balance adjustment method based on artificial features needs to rely on artificially designed image features, the application scenarios of the white balance adjustment method are likely to be limited, resulting in low white balance adjustment accuracy.

Method used

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  • Image processing method and device, electronic equipment and storage medium
  • Image processing method and device, electronic equipment and storage medium
  • Image processing method and device, electronic equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0072] The first logarithmic domain image li'=(log2(Gi / Ri+eps), log2(Bi / Ri+eps));

[0073] The second logarithmic domain image lj'=(log2(Gj / Rj+eps), log2(Bj / Rj+eps)); where, eps=le-7.

Embodiment approach 2

[0075] The first logarithmic domain image li'=(log(Gi / Ri+eps), log(Bi / Ri+eps));

[0076] The second logarithmic domain image lj'=(log(Gj / Rj+eps), log(Bj / Rj+eps)); where, eps=le-7.

Embodiment approach 3

[0078] The first logarithmic domain image li'=(log2(Ri / Gi+eps), log2(Ri / Bi+eps));

[0079] The second logarithmic domain image lj'=(log2(Rj / Gj+eps), log2(Rj / Bj+eps)); where, eps=le-7.

[0080] 3220. Using the white balance adjustment model to be trained, respectively extract the first sample image features of the first logarithmic domain image and the second sample image features of the second logarithmic domain image.

[0081] Wherein, the image features of the logarithmic domain image extracted by the white balance adjustment model to be trained include but not limited to histogram features and gray edge features. Exemplarily, the histogram feature can be extracted, the size of the histogram is 64*64, the histogram calculation is [-8.0, 8.0], and the step size is 16 / 64. Extract the histogram feature of the first logarithmic domain image li' to obtain the first histogram feature xi; extract the histogram feature of the second logarithmic domain image lj' to obtain the second...

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Abstract

The embodiment of the invention discloses an image white balance adjustment processing method and device, electronic equipment and a storage medium, and the method comprises the steps: inputting a target image into a white balance adjustment model, processing the target image through the white balance adjustment model, and obtaining a target white balance parameter corresponding to the target image, the white balance adjustment model is obtained by performing semi-supervised learning based on sample data, the sample data comprises a labeled sample image with a label and an unlabeled sample image without a label, and the label comprises a white balance parameter; and white balance adjustment on the target image is obtained by using the target white balance parameter. By implementing the embodiment of the invention, the accuracy of white balance adjustment can be improved.

Description

technical field [0001] The present application relates to the technical field of image processing, and in particular to an image processing method, device, terminal equipment, and storage medium. Background technique [0002] White balance is an index that describes the accuracy of white produced by mixing the three primary colors of red, green and blue in an image, and is an important concept for an image to accurately restore the color of the subject. Due to the hardware or software of the camera device, there may be a color difference between the color in the captured image and the color in the real world. In order to reduce chromatic aberration as much as possible, it is necessary to adjust the white balance of the image. Currently, white balance adjustment methods include manual white balance adjustment and automatic white balance adjustment. In the automatic white balance adjustment, the white balance adjustment method based on artificial features is the main method....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G06T7/90G06K9/62G06N3/08
CPCG06T7/90G06N3/088G06T2207/10024G06F18/2155G06T5/90
Inventor 吴晨
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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