A method and device for image sharpening
An image sharpening and image technology, applied in the field of image processing, can solve problems such as video image quality degradation
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Embodiment 1
[0027] see figure 1 The image sharpening method provided by Embodiment 1 of the present invention includes the following steps:
[0028] S101. Calculate the motion error of the video image according to the received input image data of the current frame, the input image data of the reference frame, and the motion error of the reference frame.
[0029] S101 is used to judge the motion intensity of the input video, so as to control the weight of image sharpening more optimally, so as to obtain a better image sharpening effect without causing scatter points that are uncomfortable to the human eye in the moving image, resulting in a decrease in video image quality .
[0030] see figure 2 , S101 may specifically include the following steps:
[0031] S1011. Receive the input image data of the current frame and the input image data of the reference frame, respectively extract blocks of m0*n0 size in the current frame and the reference frame, wherein m0 and n0 are natural numbers, ...
Embodiment 2
[0071] see Figure 5 , the image sharpening device provided in Embodiment 2 of the present invention includes:
[0072] Motion error calculation module 11, for calculating the motion error of the video image according to the input image data of the received current frame, the input image data of the reference frame and the motion error of the reference frame;
[0073] The storage module 12 is used to store the input image data of the current frame as the input image data of the reference frame of the next frame, and store the motion error of the video image as the motion error of the reference frame of the next frame;
[0074] The edge detection value calculation module 13 is used to calculate the edge detection value reflecting the image detail edge according to the input image data of the received current frame;
[0075] The edge sharpening processing module 14 is used to perform edge sharpening processing on the received input image data of the current frame according to t...
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