Halo Effect

[allo-]

Add a halo over the head.

Current work in progress branch: https://github.com/allo-/virtual_webcam_background/tree/halo

TODO:

• [x] calculate the y coordinate by the minimum y coordinate of the mask.
• [x] When the center of mass is found, try to find the center of mass of the head only, otherwise the halo does not follow the head correctly.
• [x] possibly use the segmentation output of bodypix to identify the head.
• [x] Create a function for placing sprites that clips them correctly on the image frame.
• [x] Extend the filter API to get the mask image as well or create a third class of filters between foreground and overlays
• [ ] cv2.resize seems to lower the quality too much. What can be done to improve this? Everything but "INTER_AREA" looks awful and INTER_AREA is not smoothest either.
• [ ] Create a nicer halo image or find a good public domain image.

Merging the current implementation depends on #6.

[allo-]

Still to do:

• cv2.resize seems to lower the quality too much. What can be done to improve this? Everything but "INTER_AREA" looks awful and INTER_AREA is not smoothest either.
• Create a nicer halo image or find a good public domain image.