Join ePHOTOzine, the friendliest photography community.
Upload photos, chat with photographers, win prizes and much more for free!
An image editing device used to cover part of a digital image that can then be left untouched while you apply a filter or effect to the rest of the picture.
A filter that makes a picture appear sharper by increasing edge contrast. Its usually supplied with scanners and comes with some image-editing programs such as Photoshop.