Cuts

Notes on a key, not measurements of one.

Photograph a key side-on. It gets straightened, and a numbered line is placed at every cut. You type what your callipers say.

  1. Side on. Lay the key flat, camera square above it.
  2. Plain background. Anything that is not the colour of the key — a sheet of paper, a dark benchtop.
  3. Whole key in frame, bow and tip both.

This app never measures anything. It finds where the cuts are so there is somewhere to write; every millimetre in it is one you typed.

Detection is off

If the key was not found cleanly — a shadow, a busy background, a very dark key — nudge where the app splits key from background, then detect again.