GitLab

* add draw segm masks

* rewrites with new api

* fix flaky colors

* fix resize bug

* resize for sanity

* cleanup

* project the image

* Minor refactor to adopt num classes

* add uint8 in docstring

* adds alpha and docstring

* move code a bit down

* Minor fix

* fix type check

* Fixing resize bug.

* Fix type of alpha.

* Remove unnecessary RGBA conversions.

* update docs to supported only rgb

* minor edits

* adds tests

* shifts masks up

* change tests and impelementation for bool

* change mode to L

* convert to float

* fixes docs
Co-authored-by: Vasilis Vryniotis <datumbox@users.noreply.github.com>
Co-authored-by: Vasilis Vryniotis <vvryniotis@fb.com>
Co-authored-by: Francisco Massa <fvsmassa@gmail.com>