matlab perceptual image hashing

We explore Discrete Cosine Transform (DCT) hashing for creating index structures for texture-based descr iptors. Hashes play the role of keywords: an index is created, and queried to find the images most similar to the query image.

图像哈希算法phash的源代码，可用于图像搜索的学习(Image hashing algorithm-phash)