发明授权
US4783840A Method for enhancing image data by noise reduction or sharpening 失效
通过降噪或锐化来增强图像数据的方法

Method for enhancing image data by noise reduction or sharpening
摘要:
An image enhancing process promotes either noise reduction or image sharpening on a pixel-by-pixel basis as a function of the recognition of specific patterns of sampled pixel values surrounding each pixel to be enhanced. The sampled pixel values are divided into two or more subgroups and the enhanced pixel value is provided to promote either image sharpening or noise reduction as a function of the number of pixel values in the different subgroups and their positions relative to each other in the subgroups.
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