Using the Clone Stamp Tool
One of Photoshop's most powerful features is its ability to retouch a photographic image. When wanting to manipulate an image, you can apply the Clone Stamp tool. The Clone Stamp tool allows you to sample the image, and then apply that sample over another same image, or another open document. When you use the Clone Stamp tool, by selecting Aligned In The Options bar, you can reuse the most current sampling point, no matter how many times you stop and resume painting. When Aligned is deselected, you'll reuse the same sampled pixels each time you paint. For example, you could use the Clone Stamp tool to repair damage to an image, remove a tree, even remove or add someone from an image.
Use the Clone Stamp Tool
Select the Clone Stamp tool on the toolbox.
Select a brush tip, and then select brush options, such as blending mode, opacity, and flow, on the Options bar.
Select the Aligned check box on the Options bar to sample pixels continuously without losing the current sampling point.Clear the check box to continue to use the sampled pixels from the initial sampling point each time you stop and resume painting.
Select the Sample All Layers check box on the Options bar to sample data from all visible layers or clear the check box to sample only from the active layer.
Hold down the Alt (Win) or Option (Mac) key, and then click an area to sample the portion of the image you want to use for your sample.
Drag over the area of the image you want to restore or modify.
Repeat steps 5 and 6, until you've modified the image.
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