Combining differently exposed images of the same object

Details Combining differently exposed images of the same object Combining differently exposed images of the same object

2011-05-24

2011-05-24

Bhatnagar, Anand (Department: 2624)

Image analysis

Color image processing

Color correction

C382S162000, C358S518000

Reexamination Certificate

active

07949182

ABSTRACT:
An image processing system includes: an image capture device operable to capture at least first and second images of an object at different exposures, a storage for at least part of the at least first and second images, a filter for splitting the at least first and second images into respective first and second spatial frequency components, the first frequency component being of lower frequency than the second, a selector for selecting local image intensity data from the second spatial frequency components of a region of the at least first and second images for combination with the first frequency component from the corresponding region of the first image, and a combiner for combining the selected local image data from the second spatial frequency components of the at least first and second images with the first spatial frequency component of the first image to form a final image.

REFERENCES:
patent: 6078357 (2000-06-01), Yamamoto et al.
patent: 7158687 (2007-01-01), Ohno
patent: 2003/0234944 (2003-12-01), Gindele
“Morphology”. pp. 518-525.

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