hi i need instruction or function to return locaition of pixel

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

[Image Analyst]

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.

Answer 1

[Azzi Abdelmalek]

You can use find function

[fatima ali]

find not reurun location of pixel

[Azzi Abdelmalek]

Maybe you need to use ginput function

Answer 2

[Image Analyst]

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.

[fatima ali]

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]

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?