| 摘要 |
<p>A system and method for manipulating a set of images of a static scene captured at different exposures (i.e., 'bracketed' images) to yield a composite image with improved uniformity in exposure and tone. This is generally achieved by analyzing a set of bracketed images using a multi-dimensional histogram and merging the images via an approach that projects pixels onto a curve that fits the data (400-406). However, it has been found that the desired composite image can also be produced by summing the pixel brightness levels across the multiple images (706), followed by an equalization process. One possible equalization process involves simply averaging the summed pixel brightness values by dividing the summed value of each pixel set (i.e., groups of corresponding pixels from the bracketed images) by the number of bracketed images. An even better result can be achieved using a histogram equalization process (710-720).</p> |
