hi i need instruction or function to return locaition of pixel

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fatima ali
fatima ali 2014-12-19
评论： Image Analyst 2014-12-20
hi i need instruction or function to return locaition of pixel....i search pixel in image ..i need to return location pixel ...how work this in matlab
  1 个评论
Image Analyst
Image Analyst 2014-12-20
Your edit did not help. We still don't know what you mean. Again, please explain/clarify. Perhaps give an example or a screenshot after you read this.

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回答（2 个）

Azzi Abdelmalek
Azzi Abdelmalek 2014-12-19
You can use find function
Image Analyst
Image Analyst 2014-12-20
Either use ginput() to have the user manually specify a point, or use impixelinfo() to put up a label that updates "live" with the mouse movement, giving the location and pixel value.
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fatima ali
fatima ali 2014-12-20
thanks..i know ginput and impixel but i not want ginput amd impxel..i search pixel in image ..i need to return location pixel ...how work this in matlab
Image Analyst
Image Analyst 2014-12-20
If you have a binary image, like you commented on to Shoaibur, and you want locations where the image is true (value of 1), then just do
[rows, columns] = find(binaryImage);
Is that what you want? If so, why? Because I never do that and I do image processing all the time. You probably don't need to do that. Tell me what you really really want to do and I can show you how.
Please explain in way more detail what this means : "i search pixel in image"
And please explain this in way more detail: "i need to return location pixel". What is a "location pixel"?
You told Shoaibur that whatever it is, it's not what you can get from doing this:
[rows, columns] = find(yourImage == pixelValue)
so exactly what do you want?

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