Digital video image enhancement achieving system and method based on FPGA

An image enhancement, digital video technology, applied in image enhancement, image data processing, instruments, etc., can solve the problems of insufficient layering and color saturation, large influence, gray image, etc., to achieve the best defogging effect and improve brightness. , the effect of clear image

Active Publication Date: 2014-04-09
SHENZHEN INFINOVA
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Problems solved by technology

[0004] The present invention proposes an FPGA-based digital video image enhancement system and its method, which mainly solves the problem that the image enhancement method in the prior art is greatly affected by the environment, which easily causes image graying, layering and insufficient color saturation. question

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  • Digital video image enhancement achieving system and method based on FPGA
  • Digital video image enhancement achieving system and method based on FPGA
  • Digital video image enhancement achieving system and method based on FPGA

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Embodiment Construction

[0053] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0054] RGB is a color standard in the industry. It obtains a variety of colors by changing the three color channels of red (R), green (G), and blue (B) and superimposing them with each other. RGB is the color representing the three channels of red, green and blue;

[0055] YUV is a color coding method (belonging to PAL) adopted by the European television system, and is the color space adopted by PAL and SECAM analog color television systems. In modern color TV systems, three-tube color cameras or color CCD cameras are usually used to capture images, and then the obtained color image signals are separated, amplified and corrected to obtain RGB, and then grayscale signals Y and Y are obtained through matrix conversion circuits. Two color di...

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Abstract

The invention discloses a digital video image enhancement achieving system and method based on an FPGA. The digital video image enhancement achieving method based on the FPGA mainly comprises the steps of dehazing processing on a current frame image and anti-reflection processing on the current frame image, wherein the step of dehazing processing on the video image is achieved through a dark channel prior dehazing algorithm, and a good dehazing effect can be achieved; the step of anti-reflection processing on the current frame image is achieved through an image histogram equalization algorithm, and the effect of converting a low-illumination-level gray image into a clear image can be achieved. By the adoption of the image dehazing process and the image anti-reflection process, the brightness, contrast ratio and color saturation of the image can be improved, and the image can be clearer, transparent and saturated in color.

Description

technical field [0001] The invention relates to the technical field of digital video processing, in particular to an FPGA-based digital video image enhancement system and method thereof. Background technique [0002] Image enhancement technology has long been widely used in other fields: for example, it is used in the post-processing of photos in the field of photography, and professional post-processing software such as Photoshop and Lightroom have powerful image enhancement functions; in recent years, many video players have also integrated image enhancement. Functions, such as KMplayer's sharpening, YUV diffusion, automatic level control, etc., Baofengyingyin's left eye enhancement. Its realization effect can be used for reference in the field of video surveillance. In recent years, the field of video surveillance has also begun to pay attention to the value of the application of image enhancement technology. The images directly obtained from the image sensor often do no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G06T5/40G06T5/50
Inventor 周维锋
Owner SHENZHEN INFINOVA
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