Introduction to Photoshop Noise features

　　1, dust&scratches (dust and scratches filter)

Function: You can capture different pixels in an image or selection and incorporate them into the surrounding image.

Adjust parameters:

Radius: Controls the range that captures dissimilar pixels.

Threshold: Used to determine how much of the pixel difference is to be eliminated.

Graphic effect:

The original image is dusty and scratches the effect

　　2, Despeckle (speckle filter)

Role: Detect the area of the image edge color change, by blurring the other part of the edge in order to eliminate the effect of noise, but do not lose the details of the image.

Tuning Parameters: None

Graphic effect:

Original image speckle effect

　　3, add noise (adding noise filter)

　　Action: mixes the added noise with the image.

　　Adjust parameters:

Classification:

• PS Filter Tutorial