Adaptive tone map to a region of interest to yield a low dynamic range image

摘要

Technologies may provide for yielding a low dynamic range image. A logic architecture may be implemented to perform a global tone map operation on a high dynamic range image to yield a preview image. The logic architecture may also be implemented to perform a local tone map operation on a region of interest of a preview image to yield a low dynamic range image. Additionally, the logic architecture may be implemented to provide an image that includes a predetermined amount of image pixels that are not saturated. In addition, the logic architecture may be implemented to employ image view data to yield a low dynamic range image. Moreover, the logic architecture may be implemented to convert the region of interest into a region that includes the foveal region of a user. In one example, the tone map operation is performed entirely automatically and interactively.

主权项

1. A method comprising:
receiving a high dynamic range image; performing a global tone map operation on the high dynamic range image by adjusting a tone curve associated with the high dynamic range image based on one or more global statistics determined from the high dynamic range image to yield a preview image, wherein adjusting the tone curve increases a visibility of substantially all details in both light and dark regions in the preview image; employing user input data to determine a region of interest of the preview image; and automatically performing a local tone map operation on the region of interest of the preview image by adjusting the tone curve based on one or more local statistics determined from the region of interest to yield a low dynamic range image, wherein adjusting the tone curve increases a visibility of substantially all details in the region of interest in the low dynamic range image and decreases global contrast of the low dynamic range image to make details only outside of the region of interest less visible than in the preview image.