Hello,
I am a Java Expert. And in past I had developed Steganography encoding/decoding into images in Java. I can deliver your work in a short time.
Please let me know how did you imagine your encoding/decoding of the data. I was using simple color bit changes of the image. It is not detectable by the human eye but program can decode the encoded data from the image.
Looking forward for your reply to start the work.
Regards,
Ismail.