Correcting Nonuniform Illumination - Mathworks demo

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Sriram
Sriram 2012 年 11 月 21 日
Hi,
http://www.mathworks.in/products/image/examples.html?file=/products/demos/shipping/images/ipexrice.html
In the above link one of the method for correction of non uniform illumination has been explained. How to choose the following parameters
1. background = imopen(I,strel('disk',15));
Morphological opening operation - Radius - 15 ???
2. bw = bwareaopen(bw, 50);
Area opening - 50 ??? (connected component fewer than 50 pixels)

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