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An image processing method and device

An image processing and image technology, which is applied in the field of image processing, can solve problems such as face image distortion, discontinuous grayscale transition of screen image, unsatisfactory compensation effect, etc., and achieve the effect of improving compensation uniformity and image quality

Active Publication Date: 2017-02-22
SUPERD CO LTD
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AI Technical Summary

Problems solved by technology

Illumination compensation without distinguishing between uniform and uneven illumination of the face area will cause the image to be distorted under normal illumination with uniform illumination of the face, and the accuracy of face tracking will be reduced.
[0003] The current lighting compensation methods all assume that the current lighting environment is in an environment that requires lighting compensation, and directly give the corresponding face area. However, these methods often obtain The compensation effect is not ideal, for example, there will be problems such as discontinuous grayscale transition of the screen image

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Embodiment Construction

[0075] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0076] like figure 1 As shown, an image processing method in an embodiment of the present invention includes:

[0077] Step 11, obtaining an image to be processed with a target object;

[0078] Step 12, determining the target area in the image to be processed;

[0079] Step 13, performing light projection in different directions on the target area to obtain a projection result;

[0080] Step 14, performing illumination compensation on the target area according to the projection result.

[0081] In the above embodiments of the present invention, light projection is performed on the target area, and light compensation is performed on the target area according to the projection result. Since the compensation conditions under different illumination proje...

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Abstract

The invention provides an image processing method and device. The method comprises the following steps that an image to be processed for a target object is acquired; a target object area in the image to be processed is determined; illumination projection in different directions is conducted on the target objet area to obtain a projection result; illumination compensation is conducted on the target object area according to the projection result. According to the technical scheme of the image processing method and device, the compensation uniformity of the target object area in the image can be improved.

Description

technical field [0001] The present invention relates to the field of image processing, in particular to an image processing method and device. Background technique [0002] The photometric judgment method of the face area is mainly proposed due to the fact that in the process of video-based face tracking, the environment is constantly changing, which makes the phenomenon of uniform and uneven illumination alternately appear in the face area. Illumination compensation without distinguishing between uniform and uneven illumination of the face area will cause the image to be distorted under normal illumination with uniform illumination of the face, and the accuracy of face tracking will be reduced. [0003] The current lighting compensation methods all assume that the current lighting environment is in an environment that requires lighting compensation, and directly give the corresponding face area. However, these methods often obtain The compensation effect is not ideal, for ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00
Inventor 唐春益简培云王轼
Owner SUPERD CO LTD