Photoshop#10

  

1.  

In the History panel, click in the far-left column of the state or snapshot that you want to use as the source for the History Brush tool.

1. A brush icon appears in the column, indicating that Photoshop will use this state as the source for the History Brush tool. 
2. 
   

Select the History Brush tool in the Tools panel.

You can also press Y to select the tool. 

3.

1. On the Options bar, select any other brush options that you want to use — such as Brush size and type, Mode, Opacity and Flow percentages, and Airbrush.
2. Select your desired layer in the Layers panel and, in the History panel, select the state that you want to paint back to.
3. Drag with the History Brush tool to paint over the portion of the image you want to restore.