我正在尝试查找某张图片是否包含颗粒噪声。我有关于如何在电影中找到颗粒噪声的想法（将每一帧与前一帧进行比较），但我不知道在单帧中该做什么。我正在使用 OpenCV 和 Matlab。相框可以是任何普通的相机镜头。如果有人可以提供帮助，我将不胜感激！
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The Laplacian of Gaussian (LoG), or any other high order edge detection filter brings out grains in the image. I would first try applying the LoG on the image and look for strong solitary edge pixels i.e. pixels that show up with a high edge intensity, while all of the neighbours are non-edges. If you find many such solitary edge pixels, the original image might be grainy.
于 2013-04-13T19:44:11.520 回答