Fig. 3.2 Experimental image, Adding noise image, template image.

图3.2实验图像，噪音图像，模板图像。

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Now there are many methods of edge extraction to have been researched, but none of them is an effective method that is suitable to all kinds of image, especially to the noise image.

目前已研究出不少边缘提取的方法，但还没有一种普遍适用于各种图像的有效方法，尤其对于噪声图像。

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How to extract the edge effectively in noise image is a difficult problem in the field of image analysis. The traditional methods used to extract edge are often very sensitive to noise.

在噪声图像中如何有效的提取边界是图像分析中的难点，常用的边界提取方法往往对噪声很敏感。

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The Leica M8 doesn't just have a pretty body, nor is it resting on the laurels of its predecessors: it's got a 10.3 megapixel resolution, with a low-noise CCD image sensor that starts at ISO 160 but that can also kick up to ISO 2500.

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For example, the 4K X-Reality PROTM picture engine reduces visual noise and corrects image shapes.

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Additionally, Pioneer's PureCinema technology upconverts standard definition video sources to 1080p for optimum image processing and delivering clear, sharp images with reduced image noise.

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