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发明授权
US5859927A Method and system for the reduction of memory capacity required for a digital representation of an image 失效
用于减少图像的数字表示所需的存储容量的方法和系统

Method and system for the reduction of memory capacity required for a digital representation of an image
摘要：
A method for compressing a first bit digital input representative of first pixel data into a second bit digital output representative of second pixel data, the method comprises the steps of defining a logarithmic function for converting the first bit digital input into the second bit digital output; replacing a portion of the logarithmic function with a polynomial function; and compressing the first bit digital input into the second bit digital output by utilizing the logarithmic and polynomial function.
摘要（中）：

一种用于将表示第一像素数据的第一位数字输入压缩为表示第二像素数据的第二位数字输出的方法，所述方法包括以下步骤：定义用于将第一位数字输入转换为第二位数字输出的对数函数; 用多项式函数代替一部分对数函数; 并通过利用对数和多项式函数将第一位数字输入压缩成第二位数字输出。

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