September 2012
Intermediate to advanced
232 pages
5h 26m
English
Content preview from Digital Video Processing for Engineers
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19
Segmentation and Focus
Chapter Outline
The majority of image-processing algorithms require a properly focused image for best results. For some applications this may not be difficult to achieve because the camera capturing the image will have a large depth of field: objects at a wide range of distances from the camera will all appear in focus without having to adjust the focus of the camera. However, for cameras that have narrow depth of field, the image will not always be in focus, and there needs to be some way of assigning a focus score to an image – a measure of focus “goodness”. ...
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