Image enhancement method
An image enhancement and original image technology, applied in the field of image processing, can solve the problem of loss of image details, etc., to achieve the effect of reducing image noise, enhancing image, and overcoming enhanced noise
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[0024] In order to make the content of the present invention easier to understand, the present invention will be described in further detail below according to specific embodiments in conjunction with the accompanying drawings:
[0025] The image enhancement object adopted in this embodiment is a standard lena image (such as figure 1 -a) with a lena image with a variance of 0.003 Gaussian noise (such as figure 2 -a). (Note: Lena images are standard test images widely used in the field of image processing).
[0026] The wavelet required in this embodiment is smooth, orthogonal, and symmetrical. The advantages of such wavelet processing of images are fast speed, high accuracy of image reconstruction, and avoidance of phase shift in image processing. The db wavelet system and the sym wavelet system satisfy the above conditions. Compared with the db wavelet system, the sym wavelet system whose other properties are consistent with the db wavelet has better symmetry and is more s...
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