Fig. 1. Vector decomposition schematic

Fig. 2. Encryption process

Fig. 3. Decryption schematic diagram

Fig. 4. Result and key encryption and decryption

Fig. 5. CC and MSE of the decrypted image and plaintext when the decryption key is wrong

Fig. 6. Decrypted image after key error

Fig. 7. UACIandNPCR comparison diagram of changing the pixel value size of the first point in plaintext

Fig. 8. Comparison of UACIand NPCR for exchanged plaintext pixel position

Fig. 9. Anti-selective plaintext attack analysis

Fig. 10. Histogram

Fig. 11. lena horizontal adjacent pixel distribution map