Neatimage is the best noise reduction tool available.
Many digital cameras and web-cameras can take pictures which are really not clear at low light. So, the pictures can be noisy, or we can see many small dark spots throughout in the picture.
Different cameras give different variations in the pictures taken. But a single camera gives the same kind of error / noise in different pictures taken (at different time).
Neatimage can scan a picture to find out / create the noise profile for a particular camera. By using that profile, we can remove the noise and make our picture clear.
The main problem is that it scans for noise and fills those areas by the data / colour available from the nearby pixel. So, the picture appears blurred.
We can manage set filter settings to achieve the desired level of noise reduction
The sharpening Filter to make images look sharper without amplification of noise. It can be used after removing noise, to remove that blurr effect.
Queued processing / batch processing can be done for a lot pictures taken from the same or different cameras by specifying the noise profile or by setting it to find it automatically. Preview of the noise filter for any selected image area is available.
Anyway, this is a program that you must have if you have a digital camera or a camera phone.