Using echo hiding or phase coding is it possible to encode a file wav file, play it, and decode the recorded version of the file without losing info? If its not possible with this techniques, are ther...

friend, i am currently looking for a way to video stegano. I successfully in splitting frames from video file and hide messages inside them. But when i combine these frames into video and trying to ex...

Please how can I get second operand of AND operator if the one value and the result was given. In multiplication, we divide to get the second value, in addition we subtract to get the second value. Pl...

So I'm trying to read PNG file, what I have a problem with is, how to read pixels. I know how to read bytes etc. but i don't know how to recognize which values are resposible for colors. From what I u...