How to link/connect pixel value with Image

I have a pixel data for the given image, XY-coordinate 139nm/Pixel and Z direction 1nm

Each pixel data contain the height value in nm. Pixel data is in matrix with dimenion 4046*5593.

The Data is collected from different application for the that image.

Now i need to know is there any way i can link/connect the pixel data with the image.

When i click at perticuler point/pixel on the image, I need to get the height/data at that point.

Please help me how to get the data, when i click at some point on the image.(I can share the iamge and pixel data if required)

Thanks in advance

Below is the sample pixel data:

16360	16130	14385	14340	17021	16736...
16392	16335	18044	17818	16944	16572..
16655	16464	17940	17929	17146	16599..
16779	16596	17623	17920	17590	17339..
16795	16616	17124	18173	17590	17228..
16716	16564	16826	18356	18006	17174..
16682	16499	16633	18265	17978	17427..
16789	16560	16465	18244	17807	17495..
....

Answer 1

[Max Heiken]

I am not exactly sure if I get the context.

If your image is in an axes, and if you want to click in that figure to programmatically get the value at that clicked location, you could do something like:

[clickedX, clickedY] = ginput(1);
value = interp2(image, clickedX, clickedY, 'nearest');

Of course, if you already have acquired the coordinates by other means, ginput can be skipped.

I am not sure how ginput works in the context of the appdesigner.