- Step 0: Resize:
https://www.simpleimageresizer.com/resize/jpg
- Step 1: This would turn jpeg to ppm-p6.
https://onlineconvertfree.com/zh/convert-format/jpg-to-ppm/
- step2: This turns ppm-p6 to ppm-p3:
https://thomasebsmith.github.io/ppm-converter/
- step3: use
ppm_load()function in this file:
https://github.com/julyfun/find-light-circle/blob/28de4d34d8a8063486688e5545778720e6fb9798/main.c