Use Photoshop to handle the white edges left by the cutout

The most common problem when using Photoshop to pull a picture is that the image will be left with noise from the background, because the selection area cannot be set up exactly. We often refer to such phenomena as Baibeng (figure I). For this kind of nasty white edge, now we have any simple and quick way to deal with it?

Figure I

A white edge around the image

In a lower version, we can use the anti-aliasing command and set the feather radius to directly create a selection with an implicit edge. However, once the selection is established, it cannot be changed directly. The need for more granular modifications requires the use of complex operations such as channels, masks, or quick masks. In Photoshop CS3 and above, there is a very cute choice of accessibility tool "adjust edge". Using a series of sliders and display modes above, we can solve the white-edge problem.

Adjust Edge Tool First

For the adjustment edge tool, must have many friends are relatively unfamiliar. It is necessary for us to have a simple understanding of it before going to the white side. To pull out the protagonist girl, for example, we first use the Lasso tool to create a female character selection, click the property Bar, "Adjust edge" button, pop-up Adjustment dialog box. Now let's take a look at its interface (figure II) and see that the adjustment edge tool is divided into the Adjustment slider area in the upper left corner, the middle display mode area, the lower description area, the button in the upper right corner and the preview area four large areas.

Adjust the slider area: Use the slider to change the edges of the selection to make it softer or harder, smoother or more subtle, or to change the expansion and contraction of the selection, making it smaller or larger, and ultimately meeting our requirements.

Display Mode area: Use a variety of ways to display the range of selection, to screen out the selection of the image of the impact of our operation, easy to see the image and a variety of background mixing effect.

Description area: Similar to help, it shows a brief introduction to the current Settings tool, which prompts us for our actions.

Buttons vs. Preview area: They, like other tools, can confirm, reset, and preview the results of the current operation.

How to go to the white side

After we know how to adjust the edge tool, how do we use these options to get rid of those pesky white edges? In fact, to remove the white edge, we mainly use the Adjustment Edge Tool adjustment slider area and display mode area, they are adjusting edge tool core YO!

The RADIUS option is designed to soften the edges of the selection by resizing its values, especially for the soft edges of the characters, such as the girl's sweater, furry hat and soft hair. If the edges are too stiff, they will appear false when synthesized. This option is a simple way to solve this problem.

Contrast and RADIUS options, increasing its value can make the edges very hard. If we pick out the very clear edges of the body, we can use this option to increase the clarity of the edges. Increasing the smoothing value can weaken the detail in the selection, remove burrs or gaps, and make the selection more smooth.

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