A Method of Deraining Image Based on Depth of Field and Sparse Coding
A sparse coding and image technology, applied in image enhancement, image analysis, image data processing, etc., can solve the problems affecting the imaging quality of the visual system, unfavorable image analysis, etc., and achieve good rain removal effect, scientific design, and strong practicability Effect
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[0029] The technical solutions of the present invention will be described in further detail below through specific implementation methods.
[0030] as attached figure 1 As shown, an image deraining method based on depth of field and sparse coding includes the following steps:
[0031] Step 1: Input the original image containing rain, and use joint bilateral filter and short-time Fourier transform to decompose the original image to obtain the low-frequency image I LF and high frequency image I HF , the specific methods include:
[0032] Step 1.1, performing dual-domain filtering on the original image x to obtain a guiding image g; performing bilateral filtering on the original image x and the guiding image g respectively to obtain a guiding layer image and the base layer image Take the base layer image as a low-frequency image I LF :
[0033]
[0034] in, For the obtained guide layer image, For the obtained base layer image, k(p,q) is the kernel function of bilat...
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