Image Processing SharpenLow Filter The SharpenLow operation has the effect of sharpening and smoothing the image at the same time. The kernel size can be 3, 5 or 7. The kernels used by the Image Processing Tool are shown in the following figure. SharpenLow Filtering Kernels Median The Median operation sets each pixel in the output image as the median luminance of all the input image pixels in the neighborhood defined by the selected kernel size. This has the effect of reducing impulsive image noise without degrading edges or smudging intensity gradients.
Morphological Operations Morphological operations are used to eliminate or fill small and thin holes in objects, break objects at thin points or connect nearby objects. These operations generally smooth the boundaries of objects without significantly changing their area. The Image Processing Tool provides the following predefined morphological operations, each of which can only be applied to a 3x3 neighborhood: Dilate, Erode, Close and Open. ACEUser's Guide, 3.6.x, 18316-000 Rev A Page 519