Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

For example, is it possible to modify the header of a image file to change it into a music file, and play this file?

Another example, is it possible to change the header of an image to make it black and white only?

share|improve this question

It's very dependent on what types of files you're dealing with. Image files can be read as raw data and fed into an audio player, but you'll usually get noise. But there's no way to turn, say, a PNG into a MP3 this way. Turning an image from color to black and white is a bit more complex, but possible under controlled conditions.

share|improve this answer

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .