Turning a Camera Feed into a Solved Sudoku
A few months ago, I stumbled upon a video that led me into a rabbit hole. It resulted in a simple application that overlays a sudoku’s solution into the camera image of the puzzle. This post is about the process of getting to the end result. It all started with the idea of writing a sudoku solver. The first version was ready relatively quickly, but there was one big problem: entering the starting position was slow and tedious. That’s when I realized that I could use the camera on my phone as the input device. I’ve never worked with image processing before, but it sounded like a good challenge, so I dived into it. ...