Image matting and alpha value techniques

摘要

Image matting and alpha value techniques are described. In one or more implementations, techniques are described in which matting operations are applied to image data that is in a raw or substantially raw image format. This may be used to decompose image data into foreground and background images as well as to generate an alpha value that describes a linear combination of the foreground and background images for a respective pixel. Further, implementations are also described in which a plurality of alpha values is generated for each of a plurality of pixels. These alpha values may be utilized to support a variety of different functionality, such as matting operations and so on.

主权项

1. A method comprising:
obtaining image data in a raw image format that is generated by one or more image sensors; converting the obtained image data to describe a plurality of pixels, each said pixel associated with a respective one of a plurality of color channels; and performing one or more matting operations on the converted image data.