Image statistical data detection method and device and computer readable storage medium
A technology of statistical data and detection methods, applied in the field of image processing, can solve the problems of inability to effectively determine the image statistical data of the device, affecting the functions of the white balance module or exposure module, and effect debugging, etc., to achieve the effect of improving accuracy
Pending Publication Date: 2021-06-18
ZHEJIANG DAHUA TECH CO LTD
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Problems solved by technology
[0003] In the image processing process of white balance processing, it is often impossible to effectively determine whether the image statistical data of the device is normal, thus affecting the function and effect debugging of the white balance module or exposure module. This requires the development of some means or tools to quickly Accurately determine if image statistics are correct or not
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[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0049] In order to solve the problem in the prior art that it is impossible to effectively determine whether the image statistical data acquired by the terminal device is correct, thereby affecting the function and effect debugging of the white balance module or exposure module, this application provides a specific detection method for image statistical data.
[0050] For details, please refer to figure 1 , figure 1 It is a schematic flowchart o...
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The invention discloses an image statistical data detection method and device and a computer readable storage medium. The image statistical data detection method comprises the steps of obtaining statistical data of images containing test objects under different standard light sources; fitting based on the standard light sources and statistical data of the image corresponding to each standard light source to obtain an equation curve; calculating the distance from statistical data of each standard light source to the equation curve, and obtaining the sum of distance absolute values corresponding to different standard light sources; judging whether the sum of the distance absolute values is less than or equal to a first preset threshold; and if yes, judging that the statistical data of the image is normal. According to the method, whether the image statistical data is normal or not can be detected based on the comparison result by comparing the distance between the image statistical data and the fitted equation curve, and the accuracy of the image statistical data can be improved.
Description
technical field [0001] The present application relates to the technical field of image processing, in particular to a method, device and computer-readable storage medium for detecting image statistical data. Background technique [0002] Human vision has automatic adaptability to external light sources, and can automatically adjust the white balance. That is, for external scenes, human vision can automatically adjust the size of R, G, and B components under different light sources, so that white objects can still be kept white. . However, the digital image sensor does not have the automatic adaptability of the human eye, it only responds to and records light, so that under different color temperature light sources, white objects will have obvious color cast. For example, under a high color temperature light source, a white object will be bluish, and under a low color temperature light source, a white object will be reddish. Therefore, in order to make an imaging device bas...
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Login to View More IPC IPC(8): G06T7/00G06T7/90
CPCG06T7/0002G06T7/90G06T2207/20021
Inventor 王新坡
Owner ZHEJIANG DAHUA TECH CO LTD