First, click the path thumbnail to highlight your new path. You’re all set to add the the mask to the photo.
Use the Pen Tool to create a vector shape that encircles the item you want to mask. The direction lines can then be moved separately.
Convert a smooth point to a corner point with independent direction lines by option clicking either handle. Add (or replace) direction lines by holding option-command as you click the anchor point and drag the mouse. Eliminate direction lines by holding option-command as you click an anchor point. Tips for working with the Direct Selection Tool Click and drag any anchor point to reposition it, or tug on the direction lines to tweak the curvature of the path. Once you’ve fully outlined the item and closed the path, you can tweak it using the Direct Selection Tool. This is very helpful in dealing with concave indents in your item. This reduces the anchor point to a single direction line while the preceding path segment retains its curve. You can create a corner point (any point that introduces a hard angle into your path) by option-clicking the most recent anchor point you created. Direction lines will extend from the anchor point, and while still holding down the mouse button, you can control the shape of the curve. You can create a smooth point (a point with two directional handles) by clicking and dragging the mouse. A single click of the mouse extends a straight line between anchor points. This will keep the color fill layer hidden for the time being. Return to the Layers panel and drag the Color Fill 1 layer below the Photo layer. You’ll notice that your picture disappears behind the solid color, but we’ll fix that now. Choose a color you want to use as a background (this will help illustrate the mask later on), and once again, click OK. Stick with the default name (Color Fill 1) and click OK. From the main menu, choose Layer -> New Fill Layer -> Solid Color. You’ll be asked to name the layer to keep it simple, just call it Photo. 
Control-click (or right-click) this layer and, from the contextual menu, choose Layer from Background. You should see only one layer, called Background. Once open, locate the Layers panel (Window -> Layers). Use Photoshop to open an image you’d like to edit for this example, I’ll use the photo of a coffee mug. Here are some quick steps you can use to create a vector mask. Moreover, vector masks are easier to edit later on. With Adobe Photoshop CS4 and CS5, you can create masks using both pixels and vector paths, but masks created with vector tools are almost always more accurate than those created using pixel-based tools. Once isolated, you can apply adjustments (for example, special effects or color balance) to that area alone, or use the mask to eliminate the background completely. In graphic art and design, a mask is a tool that lets you isolate part of an image from the area surrounding it.
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