Encryption and Decryption of Images with Pixel Data Modification Using Hand Gesture Passcodes
B Pawan Kumar, N Harshavardhan Reddy, Rashmi Ranjan Das, Debopam Dey, Deepika Rani Sona, M. Thanga Aarthy · International Journal on Recent and Innovation Trends in Computing and Communication · 2023
To ensure data security and safeguard sensitive information in society, image encryption and decryption as well as pixel data modifications, are essential. To avoid misuse and preserve trust in our digital environment, it is crucial to use these technologies responsibly and ethically. So, to overcome some of the issues, the authors designed a way to modify pixel data that would hold the hidden information. The objective of this work is to change the pixel values in a way that can be used to store information about black and white image pixel data. Prior to encryption and decryption, by using Python we were able to construct a passcode with hand gestures in the air, then encrypt it without any data loss. It concentrates on keeping track of simply two pixel values. Thus, pixel values are slightly changed to ensure the masked image is not misleading. Considering that the RGB values are at their border values of 254, 255 the test cases of masking overcome issues with the corner values susceptibility.