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Image enhancement method, device and system

An image enhancement and image technology, applied in the field of image processing, can solve the problems of complex method, difficult to adapt to complex illumination changes, poor enhancement effect, etc., to achieve the effect of low software and hardware cost, improved image imaging effect, and improved contrast.

Active Publication Date: 2019-02-01
芯鑫融资租赁(厦门)有限责任公司
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Problems solved by technology

[0006] The problem solved by the invention is that the image enhancement process is difficult to adapt to complex illumination changes, the enhancement effect is poor and the method is complicated

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  • Image enhancement method, device and system

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Embodiment Construction

[0047] In the prior art, in the image enhancement method using histogram equalization processing, the enhancement effect is poor, and it is difficult to adapt to complex lighting changes. However, in the image enhancement method using non-histogram equalization processing, there are problems such as complicated method and complicated hardware structure.

[0048] In order to solve the above technical problems, the technical solution of the present invention provides an image enhancement method. In order to effectively improve the visual effect of the image and enable the image to adapt to complex illumination changes, illumination compensation is performed on the image in the technical solution of the present invention to improve the image quality.

[0049] Before processing the image, it is first necessary to obtain the luminance value of the pixel point from the image. The image can be converted into a space containing luminance and chrominance components, such as converting ...

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Abstract

An image enhancement method, device, and system, the method comprising: separating an illumination component and a reflection component of a brightness value of a pixel; The brightness value of the image is enhanced to realize the illumination compensation of the image. This method can make the image adapt to complex lighting changes, and can achieve better imaging effects for users with different skin colors, making the acquired image color more comfortable and natural, and this method is relatively simple to implement, and the cost of software and hardware is low .

Description

technical field [0001] The present invention relates to the technical field of image processing, and in particular, to an image enhancement method, device and system. Background technique [0002] Image enhancement occupies a very important position in image processing. Image enhancement is to emphasize or sharpen certain features of the image, such as edges, contours or contrast. Image enhancement methods are mainly divided into two categories, namely, the enhancement method in the spatial domain and the enhancement method in the non-spatial domain. [0003] In the spatial domain enhancement method, image histogram equalization and histogram adjustment are widely used image enhancement methods. However, the disadvantage of the histogram equalization method in the prior art is that it sometimes causes the problem of excessive enhancement of the image, and there is a problem that the noise of the image is obviously increased, and the local dark area is not enhanced. The pro...

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Application Information

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IPC IPC(8): G06T5/00
Inventor 黄宜真林福辉
Owner 芯鑫融资租赁(厦门)有限责任公司