However, block effect and flying mosquito yawp based on DCT picture is inevitable.
但是基于DCT变换的压缩图像不可避免地会出现块效应和飞蚊噪声。
参考来源 - 基于小波的视频压缩算法在视频会议系统中的应用At last a method to eliminate the block effect based on direction filte is presented.
最后给出一种消除块效应的方法。
参考来源 - 一种利用分形压缩指纹图象的方法 in CIt mainly consists of the following three parts:(1) Grounding on the traditional morphological open and close operators, the area operators can better adjust to the changes of image shape and eliminate the block effect.
主要工作包括以下三部分:(1)基于传统形态学开闭算子的区域算子,能够更好的适应图像的形状变化,消除块状效应。
参考来源 - 高分辨率遥感图像中道路提取方法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
But this scheme is obsessed with block effect in the instance of low bit rate transmission.
然而在低码率传输的情况下该方案受到“方块效应”和飞蚊噪声的困扰。
Is mainly reflected in the proportion of block structure, the differences and differences in the proportion of two-block effect.
主要体现在拦网结构比例的差异和双人拦网效果比例差异。
Nevertheless, the smaller size of sub image also results to clearer block effect, and the fusion results achieved by ridgelet will also approximate to wavelet transform.
但是，分割尺寸越小，重构图像的块状效应越明显，而且分割越小图像所表示的方向也越少，效果也近似于小波变换。
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