Angel Raposo

We apply a set of filters composed by:

1. Gaussian blur filter to remove noise in the image.2. Stretch image 15 pixels to increase border areas.3. Create template from original image in grayscale

(binary image mode).4. Apply a threshold -> Increase border visibility by

merging images produced in steps 2 and 3.

Border algorithm 1

Border algorithm 2

Border algorithm 3

Decision algorithm