How to dump out an array of pixels as a png ?

Question

I'm on MacOSX.

I have read out an image, as

char image[WIDTH][HEIGHT][3]; // row, col, rgb value

Now, I want to dump it out as a png file. What is the quickest way to do this?

Answer 1

You should use libpng. I don't have a Mac, so I can't tell you if it's already pre-installed, but it should be! :-)

Answer 2

You could make it a bit stream and write the bitstream to an image object and then you can save the image object as a PNG.

Answer 3

http://zarb.org/~gc/html/libpng.html <-- amazing tutorial.