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Lossless compression of color image data using an entropy coding
Lossless compression of color image data using an entropy coding
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机译：使用熵编码对彩色图像数据进行无损压缩
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摘要
Each pixel, a method of compressing a digital continuous tone image of pixels on the scan line having a pixel value defined by the color channel value of at least one with an accuracy B bit (B 1), the method , of the pixels by using the rules for the pixel, a fixed current to generate compressed image data, and an actual pixel value to be encoded, were processed before at least one of the same image interruption of the most significant bit having a step of predicting a predicted pixel value based on pixel values, determining a difference parameter based on the difference between the actual pixel values of the pixels of the current and the predicted pixel value, a value equal to zero due to the presence of sequences that are not the steps of examining the difference parameter, the step of deleting at least a portion of the top zero bits if some bits remain within the boundaries of a given, and have a predetermined fixed length method consists of the steps of, generating a compressed code indicating the number of bits of the remainder. As it is possible to more efficient compression in the compression process of the actual image data pre-processing several steps to prepare the image data is disclosed.
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