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| Layer | The working surface of a Photoshop image. It is like a transparent sheet that sorts the paint and filter effects. |
| Palette | The basic Photoshop tool icons that help you modify and monitor images. Each palette performs a specific function and may be positioned and resized as desired. |
| Swatch | A preset group of colors on a palette. |
| Gradients | Two or more colors that gradually blend into each other. |
| Mode | The color structure of an image. Examples are CMYK, RGB, Grayscale, or indexed. |
| Filter | Created special effects that maybe applied to an image or image layer. |
| Mask | Is like a stencil. The area around the mask is protected from change and the area of the mask maybe changed. The mask itself cannot be printed, but a masked image can be printed. |
| Merge | To group one or more layers or objects in a layer together. |
| Thumbnail | A miniature version of an image. |
| Flatten image | To merge all the layers in an image into a single layer. |
| Pixel | Short for Picture Element, it is a single point in a graphic image. |
| Magic Wand Tool | A selection tool that selects pixels with similar values to the pixel that the artist clicks on. |
| Feather | The process of softening the edges of an image in the foreground so that it blends into the background image with less contrast. |
| Select | To choose an object so that you can manipulate it in some way. |
| RGB | A color image made up of color in the Red, Green, and Blue Channels. Often used when printing digital color. |
| CMYK | A color image made up of color in the Cyan, Magenta, Yellow, and Black Channels. Used for printing full color on an offset press. |
| Rastor Graphic | An image made up of a rectangular grid of pixels. This type of graphic distorts if you try to enlarge it. |
| Vector Graphic | An image that uses geometrical primitives such as points, lines, curves, and polygons to represent images. This type of graphic is scalable and does not pixelize. |
