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本文介绍三种常见的压缩图像文件格式，讨论图形程序设计中扩展内存的管理和使用技术，进行了解压缩恢复图像和将图像转换为特定图像格式存储的程序开发，解决了动态内存分配和释放、C语言视频库函数的使用、利用结构存取数据、文件输入输出和调色板数据处理等问题。
This article describes three common compressed image file formats to discuss the expansion of memory management and use of graphics programming techniques to decompress and restore images and images into a specific image format storage program development to solve the dynamic memory allocation and release, C language video library functions, the use of structure to access data, file input and output and palette data processing and other issues.