IV. Build a noise profile using Auto Profile 1. Click the Auto Profile button to build a
new noise profile for the input image: 
Auto Profile will try to automatically find and
analyze a flat featureless image area that contains only noise and no important
details: 
2. Visually inspect the selected image area - it should contain NO
VISIBLE DETAILS, only noise; otherwise the noise profile and subsequent
noise reduction may be inaccurate. If the selected area does contain
any details, move the selection to a featureless area or simply draw
a new selection in such an area (the selection must be at least 32x32
pixels large). Then click the Auto profile button again.
3. After that, a new noise profile is ready and the input
image can be processed. |