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Iida Shojiro Fourier blur unsharp. Fourier masking blur despeckle unsharp mask Transferred from org en to Commons by User BanyanTree using de php CommonsHelper PDJapanoldphoto Original upload log en IidaShojiroFourierblurunsharp Slashme bytes no PDJapanoldphoto Graphics lab attempt to improve Image Iida Shojiro sharp