| 基于JPEG压缩流的图像实时漫游和处理 |
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| 引用本文： | 武拴虎,谈正.基于JPEG压缩流的图像实时漫游和处理[J].计算机工程与应用,2000,36(3):58-59,67. |
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| 作者姓名： | 武拴虎 谈正 |
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| 作者单位： | 西安交通大学电信学院信研所,西安,710049 |
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| 摘 要： | 文章基于ＪＰＥＧ压缩格式，对任何大小的图像，尤其是大的压缩图像，通过建立 ＭＣＵ（最小编码单元）硬盘或内存地址映射，将要显示的部分图像快速定位解码，实时绘制到屏幕上，并且能快速预览和放大，从而克服了图像全部解码造成的内存不足和资源浪费，也大大提高了显示漫游速度。
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| 关 键 词： | JPEG压缩格式 MCU地址映射 实时漫游 图像预览和放大 |
Real-Time Image Browsing and Processing Based on JPEG Compressed Format |
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| Wu Shuanhu,Tan Zheng.Real-Time Image Browsing and Processing Based on JPEG Compressed Format[J].Computer Engineering and Applications,2000,36(3):58-59,67. |
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| Authors: | Wu Shuanhu Tan Zheng |
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| Abstract: | Based on JPEG compressed format,through establishing Minimum Coded Unit(MCU) address mapping in harddisk or memory,it can quickly address and decode a portion of image required,then rendering,resizing and browsing on screen.This method overcomes memory shortage and resource wasting efficiently,and at the same time, increases browsing speed. |
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| Keywords: | JPEG compressed format MCU address mapping real-time browsing image resizing |
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