Can someone explain me the following segmentation code for number plates ? what technique is applied here ?

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Tafheem Ahmed
Tafheem Ahmed 2015-6-26
评论： Tafheem Ahmed 2015-7-3
stats = regionprops(img3); %segmentation
S = ' ';
for index=1:length(stats)
if stats(index).Area > 200 && stats(index).BoundingBox(3)*stats(index).BoundingBox(4) < 30000
x = ceil(stats(index).BoundingBox(1));
y= ceil(stats(index).BoundingBox(2));
widthX = floor(stats(index).BoundingBox(3)-1);
widthY = floor(stats(index).BoundingBox(4)-1);
subimage(index) = {img3(y:y+widthY,x:x+widthX,:)};

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回答（1 个）

Walter Roberson
Walter Roberson 2015-6-26
It is just looking for connected blobs with area between 200 and 30000.
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Image Analyst
Image Analyst 2015-6-27
It looks at the area of each blob, stats(index).Area, and if the area is between 200 and 30000, it extracts the bounding box of that blob out into its own image and then places that extracted image into one cell of a cell array called subimage.
See the FAQ: http://matlab.wikia.com/wiki/FAQ#What_is_a_cell_array.3F
And see my Image Segmentation Tutorial: http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862

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