inserting a circle on a binary image

i have a binary image and i want to do a loop for which if the pixel is 1 i want to insert a mark on it and otherwise do nothing. can someone kindly guide me?

[Walter Roberson]

What is a "mark" for your purpose?

Is the required output something on the display, or is it a new matrix with the marks included?

How does this relate to the question about inserting a circle?

[Nouf Harbi]

a mark like a circle on a detected ship. i did a threshold using the max value and my result is an image with a ship and many false alams. i want to insert a circle on the ship i detected .. the ship is 1 the ocean is 0

Answer 1

[Walter Roberson]

regionprops() to get the centroids . You can pass the centroids to viscircles() to have a circle be drawn at those locations.