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为了解决数字多媒体技术发展过程中数字化图像的数据量大、存贮和处理代价昂贵的问题,ISO和CCITT两家联合成立的专家组JPEC(Joint Photographic ExpertsGroup)于1991年提出了适用于彩色和单色的、多灰度连续色调的、静态图像的数字图像
In order to solve the problem of large amount of digital image data and expensive storage and processing during the development of digital multimedia technology, JPEC (Joint Photographic Experts Group) jointly established by ISO and CCITT proposed in 1991 the application of color and single Colored, multi-grayscale continuous-tone, still image digital image