how to hide my custom data in image programatically c#

please guide me how to hide my custom data in im开发者_如何学Goage. i want to generate a image and hide my custom data in image and read back that data from image later. please need idea how to do it.

You could read the format of bitmap image file, open bmp file, identify where the data starts and in the data portion put your data such that each character represents a pixel in image. I am talking about bmp image because its uncompressed format and easy to read.