Secure and Efficient Image Retrieval over Encrypted Cloud Data

Figure 4

In Corel database [10], except for (a),(e) a query image, the most similar image by the retrieval based on (b),(f) HSV histogram, (c),(g) DCT histogram, or (d),(h) an integrated feature.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)