haloing

Both Kinemacolor and Biocolour had problems with "fringing" or "haloing" of the image, due to the separate red and green images not fully matching up.

Also, the process suffered from "fringing" and "haloing" of the images, an insoluble problem as long as Kinemacolor remained a successive frame process.

The early Technicolor process ("System 1") was an additive color process which required a special projector, and which suffered from "fringing" and "haloing" of colors.

The process also had several advantages over bluescreen matte photography, which could suffer from clipping, mismatched mattes, film shrinkage, black or blue haloing, garbage matte artifacts, and image degradation/excessive grain.