2D plot the intensity of an image by part

I used the regionprops function to find the coin's center point and mean intensity.

I want to find D4x and D4y based on the central points of the obtained coin (or perform horizontal / vertical axis 2D - plotting)

(ex. Point spread function)

The number of coins is so large that it is too slow to plot all of the centroids of the obtained coins.

Is there a function that can 2D plot the intensity of an image by part?

[KSSV]

Because of the speed problem, it seems difficult to get all the coins through the for loop.

What speed problem? You can do it in a loop right?

[HJ]

I worded it wrong. This means that the number of coins is so large that it is too slow to plot all of the centroids of the obtained coins.