Case of using automatic profiling

To analyze noise properties, Neat Image uses uniform image areas that contain noise but no visible or important details. With automatic profiling, Neat Image tries to find one such area automatically and then uses this area to analyze the image noise.

• Click (the Auto Profile with Regular Image button) on the toolbar, or select the Profile | Auto Profile with Regular Image menu item, or press F2.
  
  Neat Image will show the image area selected for analysis (see blue selection box in the image viewer; the blue color indicates that the area has been chosen automatically) and will analyze it automatically.
  
  In some difficult cases, Neat Image may have trouble finding a uniform featureless area in the image. You will notice that the selected area, for example, will contain some important image details. In such a case, just move the selection (or draw a new one) to an area that does not contain any image details and click the same Auto Profile with Regular Image button again.
  

If you see that the area selected for analysis is indeed uniform and featureless, then the resulting noise analysis is accurate. To be sure, check the Profile quality indicator in the bottom of the Filtration Job Editor window. A profile built using a uniform and featureless image area will show a high value in this indicator.

If the profile quality is high (for example, higher than 75%) then you can be sure that the noise profile is accurate. In this case, proceed to Stage II. Documenting the noise profile.

If the quality is not high, try to select another uniform image area and use Auto Profile with Regular Image once again. That may not help still, especially if the input image contains only a few featureless areas. In this case, consider using another image or building a noise profile using a special test image prepared with the Calibration Target (see Stage I. Case of building a profile using the Calibration Target).