Amanda Smith is a freelance journalist and writer. She reports on culture, society, human interest and technology. Her stories hold a mirror to society, reflecting both its malaise and its beauty.

Our ultimate cheat sheet collection has nuggets of photographic know-how for all user levels and all kinds of photographic interests – and we've even organized them into categories to make them easier ...

This algorithm traces the contour of a binary mask in a clockwise direction. It was first described by Theo Pavlidis in "Algorithms for Graphics and Image Processing ...