You can zoom an image in and out using one of the following methods:
Images can be dragged by clicking and holding the right mouse button.
Region of Interest
A region of interest can be defined by clicking and holding the left mouse button and moving the mouse on the image. After a region has been defined, it can be copied to the clipboard, or the image can be cropped to the region.
The Preview window shows a subset of the main image. The area of the image displayed by the preview window can be changed by dragging it with the mouse, or by using the Navigator. The Preview window itself can be moved but not closed. When the Before / After button is clicked and held with the left mouse button, the original unprocessed image is displayed. The processed image is displayed again when the mouse button is released.
The Before / After button.
The Show / Hide the Navigator button.
The Status window shows the progress when a time-consuming operation is underway. This window can be moved and will close when the operation is complete.
The status bar at the bottom of the Astra Image application contains some basic information: