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how can i extract only this green region ?

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sufian ahmed
sufian ahmed 2017-7-15
评论： Image Analyst 2017-7-15
I want to extract those region which has the only green channels value. is it possible after converting in gray scale i can extract green channel region ? I already tried the following code but it not works.
Im = imread('1.jpg');
Im=imrotate(Im,-90);
figure,imshow(Im);
Im = imresize(Im, [512 512]);
diff_im = Im(:,:,2);
figure,imshow(diff_im);

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回答（1 个）

Image Analyst
Image Analyst 2017-7-15
Try the Color Thresholder App on the Apps tab,
or see my color segmentation demos in My File Exchange,
or see the attached video that tracks green in a video.
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sufian ahmed
sufian ahmed 2017-7-15
sorry for that. but red is just a mark. i want to extract the region inside the red mark. my input is image.
Image Analyst
Image Analyst 2017-7-15
Then the Color Thresholder app should work for you. Use it and export your code. If it still doesn't work then write back.

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