Nonogram Solver

nonogram solver (https://lihautan.com/nonogram/)

• solving nonograms with exhaustive search + pruning
  • animating the exhaustive searching
• image recognition to solve nonogram
  • box detection
    • https://medium.com/coinmonks/a-box-detection-algorithm-for-any-image-containing-boxes-756c15d7ed26
    • http://aishack.in/tutorials/sudoku-grabber-opencv-detection/
• auto drawing? auto screenshot? overlay answers TYPE_APPLICATION_OVERLAY?