Download the required filter and decompress it first, then put the filter file into Photoshop \ Plug \ in the filter folder of ps, then right-click the PS shortcut and select the properties and the location to open the file in the pop-up box, then enter the plugs folder, and finally copy the filter file into the folder. Filters are tools used to achieve various special effects of images, which are usually used in camera lenses for color matching and adding effects. It is the general name of tools used to create special effects in drawing software. Take PS as an example, it has 12 filters such as stylization, brushwork, blurring, distortion, sharpening, video and sketch.