1. Computing

Video:Remove Photo Grain in Photoshop

with Don Schechter

Do you have digital pictures that would be perfect except for a bit of distortion, photography grain, or noise? Learn how to remove unwanted grain in Adobe Photoshop.See Transcript

Transcript:Remove Photo Grain in Photoshop

Hi, I'm Don Schechter for About.com Computing. Today I am going to show you how to remove noise in your digital picture using Adobe Photoshop CS2. There is one filter that makes this really easy to do.

Open a Picture

  • OPEN Adobe Photoshop
  • CLICK File / Open
  • SELECT Picture
  • CLICK Filter / Noise / Reduce Noise

Preview and Zoom on Grain Changes

  • CLICK on the preview box on the top right to see changes as you make them
  • CLICK on the little plus size to zoom in
  • CLICK and DRAG to move the picture around

Photoshop Noise Reduction Sliders

There are four sliders (on right) that you need to play with to reduce some of that noise:
  • The strength controls the amount of luminance noise reduction.
  • The preserve details slider adjusts image details like hair. A high value preserves the most image detail but doesn't reduce the noise as much. A big part of reducing noise is balancing the strength and the preserve details slider.
  • The reduce color noise controls remove any random color pixels you may have.
  • The sharpen details slider sharpens the image.

Photoshop Noise Reduction and JPEG Artifacts

  • CLICK to Remove JPEG Artifacts box (if picture is low resolution.)

Photoshop Noise Reduction by Channel

  • CLICK Advance button.
  • CLICK Per Channel Tab adjusting strength of each channel red, green or blue

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