I want to display only a certain part of an image on the screen initially but reveal the entire image with a move transition on click/tap. The idea is to show the main subject of the image initially and then show the entire image on tap.
In the illustration below - Visible area (blue) is the part of the image which should be visible on screen. How do I do that?
Note: I'm going to have multiple images like these shown on the screen. e.g say 4 images in a quandrant with only the subjects visible.