How to work with 2D graphics?

Question

C++ / C#

Good evening.
In general, please send me sites / literature on working with 2D graphics.
More specifically, I'm interested in how to process graphic files, different compression algorithms, how they are packed inside files. I know that there is OpenGL, I'll dig there of course. Languages ​​C++\C#

Answer 1

OpenGL seems to have nothing to do with it. Look at OpenCV for image processing. To work with different formats, you can try ImageMagick (magick++).

Answer 2

There is a lot of information on this subject. What do you need specifically? Write a sharp utility for transcoding some formats for term paper, understand the general principles of image coding, or do you want to come up with a new algorithm?
In such an abstract formulation, I can advise you to read the JPEG specifications, if you master it, you will be much better oriented in the topic.

Answer 3

Judging by the request, you are at the start =) my advice is Wikipedia
Search by the words pixel, sprite, raster, vector, opengl, png, jpeg