[Codeproject daily recommendation] Tibetan series: hide information in Images

Introduce an interesting series: Tibetan. why do we need to hide the data? :) the first article discusses how to add noise pixels to the image to hide the data (the format is not limited ), the second section describes how to use multiple key files/passwords and how to store them in multiple image carriers.
Because the graphic text is easy and simple, the introduction is relatively simple :)

Steganography-hiding messages in the noise of a picture by Corinna John
Steganography II-multiple key and carrier files by Corinna John

[Use demo]
Encryption: select an image file-> select a key (file or string) as long as possible-> select a data file to be hidden or enter a string to be hidden-> click hide message
Decryption: select an image file-> select a key (the key used when encryption is required)-> select the target file to be saved (optional)-> click extract hidden text
[Code]
Encryption process: first, the length of the information to be encrypted is stored in the first pixel. Then, one byte is read from each of the key streams to be encrypted, and the offset location is calculated, set the new RGB value.

Decryption process: reverse...