A method of image subjective visual effect enhancement based on wavelet transform
A technology of wavelet transform and visual effects, applied in image enhancement, image data processing, instruments, etc., can solve problems such as image enhancement, achieve the effects of improving image brightness, highlighting image details, and improving subjective visual effects
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[0038] A wavelet transform-based image subjective visual effect enhancement method of the present invention will be further introduced below in conjunction with the accompanying drawings and specific embodiments.
[0039] Such as figure 1 Shown, a kind of image subjective visual effect enhancement method based on wavelet transform of the present invention, the steps are as follows:
[0040] The first step: image wavelet decomposition;
[0041] Perform wavelet transform on the input image to obtain low-frequency image and high-frequency image; then normalize the three high-frequency images respectively, and then sum to obtain the detail image.
[0042] In this embodiment, the existing Haar wavelet base is used to perform one-layer wavelet decomposition on the input image to obtain three high-frequency images; the method for calculating the detail image D is as follows:
[0043] D=Norm(|Norm(|I H |)|)+Norm(|I V |)+Norm(|I D |)
[0044]
[0045] I input is the input ima...
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