Pointer in an image displayed by mathematica

[Haitham]

I would like to use the pointer in an image displayed by mathematica and have the software tell me the corrdinates of that pixel in the image.

I am diaplying the image using the following command:

ims = Table[showSlice[data, i, AspectRatio -> Automatic,
ImageSize -> 100, DisplayFunction -> Identity], {i, 1, 5, 1}];

Show[GraphicsArray[{ims}], ImageSize -> 600

Any help will be greatly appreciated!

 

[Haitham]

I don't think my question made complete sense. It certainley needed better clarity. What I am trying to achieve is to pick some region or pixel in a mathematica displayed image and have mathematica tell the coordinates of that image.

Thanks!

 

[tacman]

Sure, I can definitely help you with that! In order to use the pointer in an image displayed by Mathematica, you can use the "Locator" function. This will allow you to click on a specific point in the image and have the software tell you the coordinates of that pixel.

Here is an example code:

ims = Table[showSlice[data, i, AspectRatio -> Automatic, ImageSize -> 100, DisplayFunction -> Identity], {i, 1, 5, 1}];

Show[GraphicsArray[{ims}], ImageSize -> 600];

LocatorPane[Dynamic[pt], showSlice[data, 1, AspectRatio -> Automatic, ImageSize -> 100], Appearance -> Graphics[{Red, PointSize[Large], Point[{0, 0}]}]];

Dynamic[pt]

This code will display the image and when you click on a point, the coordinates of that point will be displayed as an output. You can then use these coordinates for further analysis or manipulation of the image. I hope this helps!