so it's necessary to research on and develop novel effective multimedia data compressing method to solve this problem 因此,研究和开发新型有效的多媒体数据压缩编码方法是非常必要的。
as a result of all the above, great attention has been paid to the discussion and research of code-compressing method in recent decades 基于以上原因,对压缩编码方法的探讨和研究在近几十年来受到了广泛的关注。
the jpeg compress method was applied, and the histogram cross matching function was used to measure the matching degree in this research 利用jpeg方法对图像进行压缩,并采用直方图相交匹配函数求得图像灰度级的匹配程度。
the fractal compressing method based on iterative function system is good at detecting the extend of fractures . 4 . the application results of wavelet multiple resolution analysis are depend on the wavelet base chosen (3)基于迭代函数系统的分形压缩方法,是一种自仿射分形方法,主要应用仿射变换,此方法对裂缝的走向预测比较准确。
experimental results show when image compressing rate is high, decoded image of wavelet transform based compressing method can preserve objects outline well and has no block effect which may appear in dct block coding technique 从运行结果可以看出,当图像压缩率较高时,使用基于小波分析图像压缩方案的解码图像能保持清晰的轮廓,无dct块编码压的方块效应。