Image Processing ( calculate perimeter)

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Prashan
Prashan 2011-4-9
移动：DGM 2023-12-29
How do I now calculate the perimter of this hand . I've got the left image using bmarea and the one on the right is when imclose is used
How do I now find the perimeter as shown on the left? I've got the outline what should i do now ?
http://www.flickr.com/photos/60171113@N05/5602943214/
thank u

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回答（2 个）

Teja Muppirala
Teja Muppirala 2011-4-10
Use the REGIONPROPS function.
I = peaks(500) > 3;
imshow(I);
P = regionprops(I,'perimeter');
P.Perimeter
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Sean de Wolski
Sean de Wolski 2011-4-11
移动：DGM 2023-12-29
e means *10^...
in this case 13613.
Prashan
Prashan 2011-4-13
移动：DGM 2023-12-29
recieving this message when i run regionprops again since i tried to get the perimeter of another hand image how is this possible?
cprops =
6x1 struct array with fields:
Perimeter

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Sean de Wolski
Sean de Wolski 2011-4-13
cprops(:).Perimeter
Will list off the six perimeters (one for each of the six binary objects)
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Prashan
Prashan 2011-4-16
thanks for this it worked.
now after all the steps i finally managed to get the images perimters calculated . however since im new to matlab i want to know how i could compile this into a program as code so i could scan an imge and run the code from a user interface without havig to declare variables and calculations all over again . the issue basically s that i wish to scan two palms simultaneously and calculate their perimters accordingly from the program how could i do this .

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