16 Feb 2016

A programmer's view on digital images: the essentials

How is an uncompressed raster image laid out in computer memory? How is a pixel represented? What are stride and pitch and what do you need them for? How do you address a pixel in memory? How do you describe an image in memory?

I tried to find a web page for dummies explaining all that, and all I could find was this. So, I decided to write it down myself with the things I see as essential.