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imagesimilarfinder's Introduction

ImageSimilarFinder

这个工具是为了在Android源码中快速找出相似的图片，并进一步进行优化，减少编译生成的img的大小。

首先感谢开源项目dHash：https://github.com/Jetsetter/dhash

比较图片的原理：

  1. 遍历指定文件中的所有图片，并按照长宽比进行归类。
  2. 在已归类好的图片文件夹中，计算每一张图的dHash（mode=hex），根据算出来的值进行排序。
  3. 计算dhash是按照指定的size，进行图片的缩放，然后对于缩放后的图的每一个像素点，进行两两比较，以0和1生成一个整型数值。
  4. 对排序好的图片，进行相邻两张图的两两比较，计算diff.

用法：

ImageSimilarFinder.py  -s 16 -t 20 -p /Users/zhangji/Downloads/SimilarResults -f frameworks packages

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