Cuervo79 said:
ok if you scan at 72 how do you make the photo 1152 x 864? do I adjust it in the image size? wouldn't that distort it?
no regarding the brush size I can do that normaly, but you mean the target from were the band aid is getting the data or the actual cursor you "paint" with
To change the image size, go to image/image size, check resample image, bicubic, and change your dimenions. Keep constrain proportions checked and change one dimension.
As Canon said, you sample from a clean area, and paint over the area you want to get rid of. With the healing brush, it doesn't have to match in tone and density. That's the beauty of that tool. It matches and blends for you, and is pretty accurate, probably 80%+ of the time. When it's not working, use the clone tool and blend yourself.
When do use either tool, don't work on your original layer. Always duplicate it (ctrl-j) and work on a copy. That way you can always fade the opacity, which lets a little bit of the original texture back in, and in portraits, really helps make it more real, and less overdone. Also, if you screw up really bad, you can delete the layer and start over, or put a mask on it and mask off the section you screwed up.