How to threshold in this.?

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Lalit Patil 2013-2-16

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/63675-how-to-threshold-in-this

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..?

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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 2013-2-16

i have changed link..

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采纳的回答

Image Analyst 2013-2-16

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/63675-how-to-threshold-in-this#answer_75274

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.