After opening an image you can label different areas of the image such as Sky and Rock by dragging the labels from the left hand side of the screen onto the image.
When you have finished labeling areas, press continue and the areas you have chosen will be expanded automatically and highlighted in different colors. These areas can be edited by clicking the mouse and dragging the regions. Try it to see how this works. You don’t need to be too accurate, and you can always come back to this stage later if needed.
Choose different Selection Editing Tools to correct the labelled areas.
Press Continue when finished.
The next stage is to adjust the horizon in the image by clicking and moving the mouse up and down. If there is no horizon this step can be ignored. Press Continue to move on to Enhance Image.