SYSTEMS AND METHODS FOR APPEARANCE MAPPING FOR COMPOSITING OVERLAY GRAPHICS

摘要

Systems and methods for overlaying a second image/video data onto a first image/video data are described herein. The first image/video data may be intended to be rendered on a display with certain characteristics—e.g., HDR, EDR, VDR or UHD capabilities. The second image/video data may comprise graphics, closed captioning, text, advertisement—or any data that may be desired to be overlaid and/or composited onto the first image/video data. The second image/video data may be appearance mapped according to the image statistics and/or characteristics of the first image/video data. In addition, such appearance mapping may be made according to the characteristics of the display that the composite data is to be rendered. Such appearance mapping is desired to render a composite data that is visually pleasing to a viewer, rendered upon a desired display.

主权项

1. A method for overlaying a second image over a first image, the method comprising:
receiving said first image and said second image, said first image differing in dynamic range and size than said second image; receiving first metadata regarding said first image; receiving second metadata regarding said second image; performing appearance mapping of said second image to determine an adjusted second image, said adjusted second image differing in dynamic range than said second image, according to said first metadata and said second metadata; and forming a composite image overlaying said adjusted second image onto at least a portion of said first image.