Convert a mosaic picture to xy coordinate

Hello!

I have a mosaic picture. I would like to have a xy coordinate on it to indicate the location of each tiles. How can I do that ??

I am new to matlab image analysis. I really have no idea on it. Please help! Thank you very much.

Here is a sample of the mosaic picture with around 2500 tiles.

[KALYAN ACHARJYA]

Start from here MATLAB Onramp

[Walter Roberson]

"Urgent" means something that needs attention immediately, in the most literal sense of "immediately". An incoming Tornado is "Urgent". Analysis of a mosaic is not "Urgent".

[Ivan MO]

Oh. I am sorry about that. But do you have any suggestions on the problem? How to add a xy coordinate into a mosaic picture so that I can get the location of each tiles in terms of (X,Y)

Please help! Thank you very much.

[Mohammad Sami]

You want to insert the text into the picture ?

The computer vision toolbox have a function to add text into the picture

https://www.mathworks.com/help/vision/ref/inserttext.html

https://www.mathworks.com/help/vision/ref/insertobjectannotation.html

[Ivan MO]

Um.....

The xy-axis should be outside the mosaic picture, just like the xy coordinate of a plot. The value of xy-axis should be located within the middle of a tile so that I can locate the tile in terms of (X,Y).

Answer 1

[Pranjal Kaura]

Hey Ivan,

You can use the 'xticks' and 'yticks' function to add custom ticks to an axes. You could set the axes labels to '1:num_Columns' and '1:num_Rows' according your mosaic plot.

If you're using imshow to display your image, you could create a custom axes obect and set it as the parent axis of the image object. You could refer to the following code snippet for this.

imshow(image,'Parent',custom_Axes);

You could also refer to this answer for more help.

Hope this helps!