How to threshold in this.?

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Lalit Patil
Lalit Patil 2013-2-16
http://www.fileconvoy.com/dfl.php?id=gc213fed1ab02da0d9992250810234ad7ac15079a4
clear all;
clc;
I = imread('2.png');
threshold = graythresh(I);
originalImage = im2bw(I, threshold);
i = bwareaopen(originalImage,70);
TI = imfill(i, 'holes');
imshow(TI)
I want to detect only the strip which is on object.?
This code not works.
Is there any other method or modification..?
  2 个评论
Image Analyst
Image Analyst 2013-2-16
I wasn't able to download your image. It saves it but it doesn't save it as a real PNG image even though the extension is PNG.
Lalit Patil
Lalit Patil 2013-2-16
i have changed link..

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Image Analyst
Image Analyst 2013-2-16
编辑：Image Analyst 2013-2-16
Don't use graythresh(). Pick your own threshold, perhaps using my interactive thresholding function http://www.mathworks.com/matlabcentral/fileexchange/29372-thresholding-an-image that's in my File Exchange.
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Image Analyst
Image Analyst 2013-2-16
binaryImage = grayImage >= 88 & grayImage <=233;
Lalit Patil
Lalit Patil 2013-2-18
Very helpful Demo...:) It Solves many problems...

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