Visual Security Assessment via Saliency-Weighted Structure and Orientation Similarity for Selective Encrypted Images

Figure 1

The performances of IQAs on images from the IVC-SelectEncrypt database [32] and PEID [33] database. (a) Original image from the PEID database. (b) Encrypted image with PSNR = 14.5 and SSIM = 0.19. (c) Encrypted image with PSNR = 20.3 and SSIM = 0.51. (d) Original image from the IVC-SelectEncrypt database. (e) Encrypted image with LSS = −0.007 and VSI-Canny = 0.0752. (f) Encrypted image with LSS = −0.02 and VSI-Canny = 0.1893.

(a)

(b)

(c)

(d)

(e)

(f)