用ps更换图片背景（Change the picture background with PS）.docVIP

用ps更换图片背景（Change the picture background with PS） Prerequisite: there is Photoshop software In the later stage of the photo, we often use Photoshop to extract the characters from the photos so as to achieve special effects such as background change. Using Photoshop to extract the character material in many ways, we start with some small examples to replace the characters in the picture background, sums up four methods of this post describes Photoshop matting: First, tool method - use magic wand tool instead of background Two, path method - use a pen tool to pick out characters Three, mask method using matting mask technology Four, filter method - powerful filter filter Basic thinking There are many ways to implement photo background changes, but the basic ideas follow the following two: 1. select the background method. Remove the unsatisfactory background from the photo, then insert the extracted characters into a new favorite background picture. This method is more suitable for picking out the more monotonous and less colorful background, so as to select the characters. 2. select characters. Contrary to the above idea, the idea is to directly select the characters or objects needed in the photos and cut or copy them into predefined background photos. This method is better for picking out people or objects whose edges are clearer. For the above two photos background change ideas, the final effect is the same, but the specific application of what kind of thinking, it depends on the need to replace the specific photos of the background and determined. Explain four matting method First, tool method - use magic wand tool instead of background Tip of knowledge: magic wand tools allow users to choose areas with consistent colors (for example, a red flower) or background images rather than having to follow their contours. The color range selected by the wand tool can be controlled by the error range parameter value in the tool palette. Note that magic wand cannot be used in