We can undo unwanted actions by using Photoshop's History panel. The History panel contains a record of all of the actions taken in an open file. By clicking on previous actions in this list, we are returned to a specific point in the file. In this way, if we make a mistake we can return to an earlier point in the file and continue from there. Understanding the History panel is essential to using Photoshop at a proficient level.
Let's practice this now. First, we have to open the History panel.
Step1. To open the History panel, in the panel dock,
Step2. To move to a previous history state,
NOTE: The keyboard shortcuts Control key+Z and Control key+Alt key+Z can also be used to step backwards and forwards through the history states.
Configuring the History Panel
Step1. To open the preferences, in the Menu bar,
Click Edit, Point Preferences, Click Performance...
NOTE for MacOS Users: To open the preferences, from the Menu bar, Click Photoshop, Click Preferences, Click Performance.
Step2. To increase the number of history states, in the History States field,
Press & Drag the current value, type: 100 Enter
Step3. To view the entire image at once, in the Tools panel,
Working With Selections
One of the most common tasks in Photoshop is selecting. A selection in Photoshop allows us to focus on one part of the image while leaving the rest unaffected. This is essential for any kind of advanced photo editing, because many times a problem exists in just one part of the image. We use selection techniques to segregate pieces of an image in order to repair, move, or replace just those parts. Later on in this workshop, we will isolate the image of a little girl from its background and place our selection onto a new background. However, for now we would like to remove the date stamp in this image.
There are many tools that can create selections in Photoshop. In order to replace this large date stamp, it will be best to draw a shape around the whole date and repair the area within that selection. To make this selection we will use the simplest selection too, the Rectangular Marquee tool.
Step1. To activate the Rectangular Marquee tool, in the Tools panel,
Step2. To make the selection, with the Rectangular Marquee tool active,
Press & Drag a rectangle around the date stamp in the lower right corner
Understanding Content Aware Fill
Besides the standard healing tools, we can also heal a selected area with Content Aware Fill. Content Aware Fill works much like the healing tools, except that instead of pressing and dragging over an area, by applying a command to a selection we are able to heal that section of the image all at once.
This works best on problems that have a simple background texture behind them. The more information Photoshop has to pull from to recreate the background, the better the final result will look.
Our date stamp is a perfect example. The date stamp is surrounded by the rock texture on all sides. We can easily replace this with Content Aware Fill.
Let's do this now.
Step1. To open the Fill dialog box, from the Menu bar,
Click Edit, Click Fill...
Step2. To accept the settings, in the dialog box,
Step3. To deselect, from the Menu bar,
Click Select, Click Deselect
Step4. Save the image.