Java Applet to illustrate the effects of Spatial Filtering using 3x3 or 5x5 masks
(You can use the [Clear All] button to clear all the images and histograms)
1. Select an image by double clicking the image name in the image files list.
2. Change the window parameters with the required 3x3 or 5x5 matrix values.
Suggest: positive values for spatial averaging (lpf) (0,1,0; 1,2,1; 0,1,0) and
negative values for sharpening (hpf) (0,-1,0; -1,5,-1; 0,-1,0)
3. Click on the 3x3 or 5x5 Filtering buttons to start the process.
4. NOTE: If you click on any of the buttons again, the same image will be recursively filtered.
5. If you do not want to recursively filter the image, select the image as in step 1 again
[more info]