传统的图像滤波复原技术一般都是对图像中的噪声加以抑制或消除，但图像在强噪声污染时传统的方法消除噪声很困难。
Traditional methods for image restoration usually focus on eliminating noises to accomplish restoring image, but for images polluted by strong noises, it is hard to achieve it in this way.
该法工艺简单，技术可行，操作稳定，既消除了环境污染，又能制备化工产品，具有明显的环境效益和经济效益。
Since it can solve the problem of environmental pollution and prepare chemical product, its environmental and economic benefits are obvious.
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