Required materials: PSCS6 example

1. When modifying a picture, first Ctrl+J copies a layer, and all subsequent modifications are to modify the copied layer. The original image is at the bottom. When comparison is needed, all the layers above the original image are hidden.

2. At this time, hide the upper layer and compare it with the original picture.

Extended data:

Ps Functionally, the software can be divided into image editing, image synthesis, color correction and functional color effect production. Image editing is the basis of image processing, which can perform various transformations on images, such as enlargement, reduction, rotation, tilt, mirror image and perspective. You can also copy, remove spots, repair and modify damaged images.

Image synthesis is to combine several images into a complete image with clear meaning through layer operation and tool application, which is the only way for art design; The drawing tools provided by the software make foreign images and ideas well integrated.

Tone color correction can adjust and correct the color of the image conveniently and quickly, and can also switch between different colors to meet the application of images in different fields such as web design, printing and multimedia.

The production of special effects in this software is mainly accomplished through the comprehensive application of filters, channels and tools. Including the creation of image special effects and the production of special effects characters, such as oil painting, relief painting, plaster painting, sketch and other commonly used traditional artistic skills can be completed through this software.

Baidu encyclopedia -PS