My provocative answer will be that you should try to implement / learn some algorithms for hiding / hiding the image. The sample algorithm for a 3-bit image hiding in a 24-bit image is very simple and consists of about 10 lines of Python or so (of course, it could be a bit more with C / Obj-C). And you get a good stego image quality - about 87.5% of the original quality. So check out my blog article about this steganography method.
stego .
Python script, ; P
, . stego, .