Research Article

A Simple Image Encryption Based on Binary Image Affine Transformation and Zigzag Process

Table 11

Values of the number of pixels’ change rate (NPCR) and unified average changing intensity (UACI) in several nonmedical images.

File nameDescriptionSizeCorr (A.B)NCPRUACIMSEPSNR

4.1.01Girl256 × 2561.35e−0399.599533.4520
4.1.02Couple256 × 2569.35e−0499.611733.49130
4.1.03Girl256 × 2561.38e−0399.617833.50030
4.1.04Girl256 × 2565.57e−0499.613633.47340
4.1.05House256 × 2566.70e−0599.601733.4810
4.1.06Tree256 × 2563.04e−0399.616633.53540
4.1.07Jelly beans256 × 2563.16e−0399.61433.43570
4.1.08Jelly beans256 × 2562.05e−0399.60433.42720
4.2.01Splash512 × 5129.57e−0499.61233.43380
4.2.02Girl (tiffany)512 × 5122.78e−0399.610533.39750
4.2.03Mandrill (a.k.a. Baboon)512 × 5121.94e−0499.606333.43530
4.2.04Girl (lena. or lena)512 × 5125.32e−-0499.625433.46040
4.2.05Airplane (F-16)512 × 5121.45e−0399.60433.44260
4.2.06Sailboat on lake512 × 5121.39e−0499.60933.45130
4.2.07Peppers512 × 5121.55e−0399.610533.51160
5.1.09Moon surface256 × 2562.42e−0399.616633.4340
5.1.10Aerial256 × 2562.44e−0399.626233.42090
5.1.11Airplane256 × 2566.09e−0499.608233.48210
5.1.12Clock256 × 2561.58e−0399.591833.41260
5.1.13Resolution chart256 × 2562.49e−0399.610133.53350
5.1.14Chemical plant256 × 2563.96e−0399.634633.3430
5.2.08Couple512 × 5128.94e−0499.595633.41830
5.2.09Aerial512 × 5124.95b0399.611333.35980
5.2.10Stream and bridge512 × 5127.71e−0499.611733.51070
7.1.01Truck512 × 5126.92e−0499.602533.43770
7.1.02Airplane512 × 5122.96e−0399.604433.40760
7.1.03Tank512 × 5126.64e−0499.615933.46960
7.1.04Car and APCs512 × 5122.12e−0399.610533.43040
7.1.05Truck and APCs512 × 5127.08e−0499.625433.40410
7.1.06Truck and APCs512 × 5124.98e−0499.594133.50410
7.1.07Tank512 × 5127.41e−0499.617833.44290
7.1.08APC512 × 5121.30e−0599.59633.45920
7.1.09Tank512 × 5126.91e−0499.618533.49670
7.1.10Car and APCs512 × 5122.65e−0399.593733.39730
Boat.512Fishing boat512 × 5121.10e−0399.63333.41210
Elaine.512Girl (elaine)512 × 5123.55e−0399.61233.4750
HouseHouse512 × 5122.72e−0499.617433.44480
Gray21.51221-level step wedge512 × 5124.65e−0499.615933.4460
Numbers.512256-level test pattern512 × 5121.07e−0399.624333.44080
Azafack398 × 5121.97e−0499.610933.44390
Guefack365 × 4862.72e−0399.593433.35930