Where is anti aliasing in photoshop

We filled the circle with the Paint Bucket Tool. Then we snipped a magnified portion of the edge and prepared the image you see below. Without anti-aliasing, non-vertical and non-horizontal edges appear jagged as seen in the red circle.

In this example, we followed the same steps as above, except we checked the box next to anti-alias and made sure feathering was set to zero before drawing the circle. Be sure to create the background first before proceeding with anti-aliasing. The image below shows the red circle and a close-up of it's edge.

This technique is called anti-aliasing. Every selection in Photoshop is automatically anti-aliased for you, unless you turn this feature off in the selection tool's Options bar. Unfortunately, you can't see the anti-aliased nature of the selection unless you're in Quick Mask mode, because anti-aliased partially selected pixels are often less than percent selected. Note that once you've made a selection with Anti-aliased turned off on the Options bar, you can't anti-alias itthough there are ways to fake it see below.

Anti-aliasing simply smooths out the edges of a selection, adjusting the amounts that the edge pixels are selected in order to appear smooth. But it's often too often the case that you need a larger transition area between what is and isn't selected. That's where feathering comes in. Feathering is a way to expand the border area around the edges of a selection. The border isn't just extended out; it's also extended in see Figure Figure To understand what feathering does, it's important to understand the concept of the selection channel that we talked about earlier in the chapter.

That is, when you make a selection, Photoshop is really "seeing" the selection as a grayscale channel behind the scenes. The black areas are totally unselected, the white areas are fully selected, and the gray areas are partially selected. When you feather a selection, Photoshop is essentially applying a Gaussian Blur to the grayscale selection channel. Smooth selection edges with anti-aliasing and feathering Search. Photoshop Elements User Guide.

Select an article: Select an article:. On this page Smooth the edges of a selection by anti-aliasing Blur the edges of a selection by feathering Define a feathered edge for a selection tool Define a feathered edge for an existing selection. Applies to: Photoshop Elements. Smooth the edges of a selection by anti-aliasing. Select Anti-aliased in the options bar.

If your image has a lot of good details, you should adjust it for a small Radius - large Amount and vice versa. The purpose of the Radius is to set the width of the vertical halo of the image. This item sets the edge contrast. After the setup is complete, click OK 4 to save. Step 3: You set the Radius 1 on a small scale from 0.

For Threshold 2 , a high value will make the image blurry and you should set it to a moderate level.