Optofidelity: Screen Calibration fixes

When calibrating a screen with PWM, even the non flashing parts
of the screen can look like they are flashing. This cl makes some small
adjustments to account for that.

TEST=covered in regression tests

Change-Id: Ice3848d193dfff71b3529ae54e12e8908e731519
Reviewed-on: https://chromium-review.googlesource.com/336538
Commit-Ready: Dennis Kempin <denniskempin@chromium.org>
Tested-by: Dennis Kempin <denniskempin@chromium.org>
Reviewed-by: Dennis Kempin <denniskempin@chromium.org>
3 files changed
tree: 98d1b8255684c62ac367557c71ab644e9f80cacb
  1. .gitignore
  3. optofidelity/
  4. quickstep/
  5. setup.py
  6. touchbotI/
  7. touchbotII/