Well, I have finally made some time to do my infamous noise reduction tutorial. For this tutorial you will either need to DL the trial for Noise Ninja from http://www.picturecode.com/nn_plugin.htm
or, you can acquire it… (Cough Cough Torrents, or Limewire Cough Cough) I will not answer any questions regarding that portion of this tutorial
Step One: Open up RGB image. Go to the Layers Palette and select the Channels tab.
Step Two: Select the Red channel by clicking on tab. The image will become Black and White, this is normal.
Step Three: Go Up to Filter -> Picture Code -> Noise Ninja (If you do not see this then you must have installed Noise Ninja in the wrong place, go back and check out the directions on the Noise Ninja website.)
Step Four: Now the Noise Ninja dialog box should be open. After you click on The Noise Ninja thing and it is opening up it should say “Profiling Image” If it doesn’t, click on the “Profile Image” box.
Step Five: Now go back the Channels Palette and do the same thing that you just did with the Red Channel, then do the same thing you did on the other 2 channels to the Blue Channel.
Step Six: Back to the Channels Palette again, Click on the RGB (your image should be a color image again). The go back up to Noise Ninja and run Noise Ninja one more time to remove any other noise that may have been missed
Step Seven: The noise should now be pretty none existent and the image should look much better, but it may still lack a little but of sharpness. The key here, is that we do not want to just sharpen the noise in the picture. So we are going to use a technique that will only sharpen the edges of objects in the image. Go back to your layers palette by clicking on the Layers tab(which is next to the Channels Tab). Now duplicate the layer that you did the noise reduction on (will mostly likely be called “Background”). To duplicate the layer make sure what ever layer you want to duplicate is selected the press Ctrl+J.
Step Eight: Go up to Filter-> Other-> High Pass
Step Nine: Your image is going to look very strange, but that is okay. Right now we are going to find a setting that allows you to clearly see the outside of the edges of subject of the photo. There really isn’t any certain number that works with an image, but I have found that a setting of about 3 px- 9 px works best. But you can just slide the slider and see what looks good to you. When you find a setting you want, press OK.
Step Ten: Now that you have done that, now to make your image look normal again. Now you are going to change the blending mode of the image to Overlay.
Now if your image looks a little to over sharpened you can just turn down the opacity of the level till it is a setting that looks good to you