next Step 1: Select a ghosted area  
 
Step 1: Select a ghosted region
A ghosted region is a part of the image where the subject moved between the bracketed shots, like the dancers shown in this image.

To select a region for deghosting, drag your mouse around the ghosted area of the image. The region you have selected is indicated by a dashed line. Next, mark the region as ghosted in step 2.