本论文主要研究了基于变换域上的两个图像处理技术，即数字水印技术和图像压缩技术。
In the dissertation, we study two technologies of image processing based on frequency domain. The one is on digital watermarking, the other is on image compressing.
采用了事件驱动的多线程机制实现音频处理和多路混音，并在压缩域实现四画面和成。
The paper adopts the mechanism of event-driving multi-procedure to realize voice-frequency processing and multichannel mixing. It also achieves f…
结论在压缩域进行遥感图像处理，不但可简化运算，减少运算量，而且可使处理速度大大提高。
Conclusion It indicates that not only simpler operation and smaller calculation are obtained but also the processing speed is improved greatly.
结论在压缩域进行遥感图像处理，不但可简化运算，减少运算量，而且可使处理速度大大提高。
Conclusion It indicates that not only simpler operation and smaller calculation are obtained but also the processing speed is improved greatly.
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