IMAGE FILTERING BASED ON IMAGE GRADIENTS

摘要

Image processing methods and systems apply filtering operations to images, wherein the filtering operations use filter costs which are based on image gradients in the images. In this way, image data is filtered for image regions in dependence upon the image gradients for the image regions. This may be useful for different scenarios such as when combining images to form a High Dynamic Range (HDR) image. The filtering operations may be used as part of a connectivity unit which determines connected image regions, and/or the filtering operations may be used as part of a blending unit which blends two or more images together to form a blended image.

主权项

1. An image processing method comprising:
determining image gradient indications for at least one image; determining filter costs for image regions based on the determined image gradient indications for the at least one image; and applying a filtering operation to the at least one image with filter logic using the determined filter costs for the image regions, so that the filtering is performed for image regions in dependence upon image gradients of the at least one image.