该文讨论了采样图象的一般模型，提出了离散图象的采样准则，给出了一种迭代算法。

This paper discusses the general model of Non-uniform sampling image, and presents the sampling principle of discrete image.

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对于给定的细节较少的单色数字图象，本文给出了一种自适应的离散余弦变换(DCT)数据压缩方法。

For a given monochrome digital image with low detail, an adaptive DCT data compression method is given and compared with adaptive DPCM method.

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本文论述了图象质量的各种定量测度，包括连续的和离散的形式。

A variety of quantitative measures of the image quality, including the continuous and discrete forms, is investigated.

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