A Secure and Efficient Image Transmission Scheme Based on Two Chaotic Maps

Figure 11

Plain image sensitivity test results for SIT-SR: (a1) 5.1.10.tiff; (a2) cipher image of (a1); (a3) the least significant bit of the pixel at (1,1) in (a1) is reversed; (a4) cipher image of (a3); (a5) difference image between (a2) and (a4); (b1) boat.512.tiff; (b2) cipher image of (b1); (b3) the least significant bit of the pixel at (256,256) in (b1) is reversed; (b4) cipher image of (b3); (b5) difference image between (b2) and (b4).