A clever method to get realistic colors in important areas of an image; such as skin, grass, hair, and sky is to open a color image containing true colors such as black or white.
You can then use the Color Picker to move the mouse pointer to a true color, take a sample from the true colors and return to your …

You are probably already familiar with the History of Photoshop, which allows you to undo up to 20 steps. Unfortunately, when you quit Photoshop nothing is saved in memory and this no longer works. However, there is a way to undo changes to color and tone after days, weeks or even months.
Here is how: next time you apply a change …