How can I get the pixel values of a region of interest in an color image? I selected ROI using roipoly()

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Usha Kiran Rajput 2013년 1월 31일

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https://kr.mathworks.com/matlabcentral/answers/60663-how-can-i-get-the-pixel-values-of-a-region-of-interest-in-an-color-image-i-selected-roi-using-roipo

I am doing a project on image inpainting.

Between the process I need to determine whether a specific region is damaged or not; for that I want to compare a current pixel with a damaged pixel. How can I determine the pixel vale of the region of interest?

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Lester Lim 2013년 1월 31일

편집: Randy Souza 2013년 1월 31일

Use imtool. One of the boxes in the toolbar should have check pixel values.

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Answer 1

Image Analyst 2013년 1월 31일

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https://kr.mathworks.com/matlabcentral/answers/60663-how-can-i-get-the-pixel-values-of-a-region-of-interest-in-an-color-image-i-selected-roi-using-roipo#answer_73051

How interesting that you flag your own question as unclear. So go ahead and clear it up.

For example, you obviously have a picture that you think might have damaged pixels in it. Do you have the image that is a perfect reference image?

The region of interest is what you say it is. What does it mean to you? Does it mean a 5 by 15 window? Does it mean all connected pixels within 42 gray levels of the pixel in question? Or some other definition? There is no one, single definition of region of interest that applies to all images in the universe. You have to define what is "of interest" to you. You specifically, not me or Jan or Walter or anyone else, but to you.