raggedness 

英汉解释

n. 破烂；粗糙

同义词

n. roughness

反义词

n.   smoothness

参考例句

1. Some experiments have proved that the combination of Block Truncation Codingtechnique and Subband Coding can get the reconstructed picture of a little raggedness of sharp ed.
实践表明，将块截断编码与子带编码相结合（即子带块截断编码算法），能去除前者所带来的严重的块效应，使重建图像质量明显提高。

英英解释

n.
  1. a texture of a surface or edge that is not smooth but is irregular and uneven
  2. shabbiness by virtue of being in rags

网络释义

raggedness
破烂; 破旧;