Fig. 17From: A recent survey of self-embedding fragile watermarking scheme for image authentication with recovery capabilityComparison results of Lena watermarked image of four schemes [1, 7, 24, 48]. a Original image. b PSNR = 37.15Â dB [1]. c PSNR = 44.15Â dB [7]. d PSNR = 44.27Â dB [24]. e PSNR = 44.16 [48]Back to article page