1. An image processing system comprising: an image capture device operable to capture at least first and second images of an object at different exposures, 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, 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.