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fft
- 对图像进行快速傅里叶变换，在频率域去除高频信息再逆变换到空间域，完成图像栅格信息的消除。-Fast Fourier transform of the image, in the frequency domain to remove high-frequency information and the inverse transform to the spatial domain, to complete the elimination of the image grid of informati
DE
- 基于pde的图片去噪算法，用于去除图片白噪声-Pde-based image denoising algorithm, white noise is used to remove pictures