Checkpoint Hough Lines tutorial.  The standard transform looks broken.
Boost thresholds to make standardHough() work and improve comparison.
Draw Hough lines over color original.
Checkpoint Hough Circles tutorial which doesn't find anything yet.
Tweak to detect 6 circles.
Tweak and use different photo to find 22 circles.
Add the Hough Circle example photos.
Remove unused code.
Sigh.
Checkpoint image remap tutorial.
Move maps where they belong.
Compute maps once in classes.
Simplify.
Fuss too much with the user interface.