Fix a few minor issues in image_helper#68

Merged

mjeronimo merged 3 commits intomasterfrom mjeronimo/image-helper-fixes

Oct 29, 2020

+15-13

Commits on Oct 28, 2020

Fix a few minor issues in image_helper
Michael Jeronimo
committed
Add a missing encode() call
Michael Jeronimo
committed
Invert 32F depth images so that closer is lighter and farther is darker
Michael Jeronimo
committed