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Image rain removal method and system

An image and raindrop technology, applied in the field of image processing, can solve the problems of low real-time performance of image rain removal technology, misjudgment of rain removal effect in dynamic scenes, etc.

Inactive Publication Date: 2015-11-11
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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Problems solved by technology

[0006] The present invention provides an image deraining method and system, aiming to solve the technical problems that the existing image deraining technology has low real-time performance and misjudgment of the deraining effect in dynamic scenes

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  • Image rain removal method and system
  • Image rain removal method and system

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Embodiment Construction

[0046] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0047] see figure 1 , is a flow chart of an image deraining method according to an embodiment of the present invention. The image deraining method of the embodiment of the present invention comprises the following steps:

[0048] Step 100: input the video frame image, and convert the video frame image from the RGB color space to the HSL color space according to the color characteristics of the raindrops;

[0049] In step 100, the color characteristics of raindrops are specifically: due to the fast falling speed of raindrops, under normal exposure speed, no spherical raindrops can be observed on t...

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Abstract

The invention belongs to the technical field of image processing, and particularly relates to an image rain removal method and system. The image rain removal method comprises: step a: inputting a video frame image and converting the video frame image from an RGB color space to an HSL color space; step b: extracting H and S channel parameters of the HSL color space; detecting edges of a moving object by using the H and S channel parameters and screening pixel points polluted by rain drops; and step c: removing the pixel points polluted by the rain drops by using an an anisotropic diffusion edge protection algorithm to obtain a rain-removed image. With the adoption of the image rain removal method and system provided by the embodiments of the invention, the video frame image is converted from the RGB color space to the HSL color space, so that time complexity of the algorithm is reduced, and an application range and instantaneity of the algorithm are improved, therefore, erroneous determination of the rain drops and the moving object is avoided; and the rain drops are removed by using the anisotropic diffusion edge protection algorithm to obtain a better rain removing effect, and accuracy and robustness of the algorithm are improved.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a method and system for removing rain from an image. Background technique [0002] Rain has a great impact on image imaging, which will cause image blur and information coverage. The direct result is that the clarity of video images will decrease, and the digital processing of video images will also be affected by this and the performance will decrease. Restoring the video image polluted by raindrops is beneficial to the further processing of the image, including the performance improvement of image-based target detection, recognition, tracking, segmentation and monitoring technologies. Moreover, the video image rain removal technology has broad application prospects in the fields of modern military, traffic and security monitoring. [0003] The research on the characteristics of raindrops in video images has been widely concerned by the international academ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00
Inventor 朱青松李佳恒王磊
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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