PS Drawing tips: Image Removal Background method

Source: Internet
Author: User
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What is a "pull- map "? As the name suggests, the so-called cutout is from a picture of a part of the interception, and the other background to synthesize. Do not underestimate this work, we live in a lot of image products have been through this processing, such as advertising, need designers to model photos of the portrait part of the pull out, and then and background synthesis. In fact, pull the map in your life, especially with the popularity of digital cameras, scanners and other equipment, more and more people began to be happy to their hands of the photos to carry out a variety of "special treatment", such as their own full-length picture to pull out to put in other background, The lover's single photo to pull the picture and their own photo synthesis of double photos and so on, all need to use to pull the map.

In short, the part of the image that needs to be extracted accurately from the picture is called a pull- or-go- bottom .

For the convenience of the vast number of pictures DIYer understand and grasp the drawing skills, we especially for everyone will pull down the bottom of the method to sum up, some of the use of Photoshop tools, some of the traditional tools of the play, there are a variety of image processing skills of the synthesis. Hope to help you as much as possible to the most concise operation to get the best pull the picture effect.

  First, Photoshop in the drawing to the bottom of the method Daquan

In Photoshop, the simplest way to do this is to use the magic wand (Magic Wand Tool) to select the area of the background that is close to the color, and then wipe off some of the remaining chopped branches in the background with the Eraser tool (Eraser Tool). Or use the Lasso Lasso tool to outline the main part of the image, then reverse the selection and delete the background. However, these methods can only be applied to some simple background images, and the effect of the drawing is not ideal. With the improvement of Photoshop users ' technology and the upgrading of software versions, we now have more pull-through methods to choose from.

method One: Magnetic lasso tool

The magnetic Lasso (magnetic lasso) tool works very well when you need to deal with a sharp contrast in the color of the graphics and background. The more obvious the contrast, the more accurate the magnetic lasso tool is.

If you'd like to spend a few minutes on the magnetic lasso tool, please open the example bottles.tif provided by Photoshop and select the magnetic Lasso (magnetic lasso) tool in the Toolbox. Press the mouse over the CAP position in the image, and after that there will be a line following your mouse-I think the line should be called a lasso. Carefully move the mouse along the outline of the glass bottle, the resulting lasso will automatically attach to the image of the glass bottle around, and every distance there will be a square point of location to produce-such as the contour of the image, the lasso is usually very accurate attachment. When you find that the lasso has strayed from the outline of the glass bottle, you can try to pull it back and click the left mouse button to manually create a fixed floating lasso on the anchor point. Finally, when the lasso goes around the glass for a week and returns to the original identified anchor point, the mouse pointer changes slightly in the image-a tiny circle appears near the mouse pointer. This is the best time to press the left mouse button to close the lasso. Typically, a selection is made, which happens to select the glass in the image.

Double-click the icon, we'll see the lasso tool in the magnetic Options panel SET options . Navigating them flexibly can help you to be more precise in completing the cutout.

Feather: This entry is used to set the feather level of the edge;
ianti-aliased: Select to effectively remove jagged edges;
Lasso Width: Used to set the scope of the detection, Photoshop will use the mouse pointer Point for the standard, in the set of this range to find the most contrast edge. It can take an integer value between 1-40 Pixels (pixels);
Frequency: The frequency at which the anchor is created, the range is set between 0-100, and the higher the number, the more key points are marked;
Edge contrast: Lasso tool Discovery Edge The sensitivity, the higher the value set, the higher the contrast between the edge and the surrounding environment;

It is said that if you use the Digital graphics board, you can choose whether to use the Stylus:pressure item. If the item is selected, the greater the pressure on the digital graphics board, the smaller the search range, that is, the greater the pressure on the digital graphics panel, the smaller the value of the Lasso Width. Unfortunately I have not used this input device personally, so I can't tell you my experience.

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