Dfine 2.0 is the long awaited update to Dfine 1.0; the Noise Reduction product from Nik Software that is redefining noise reduction for Adobe Photoshop and Photoshop Elements. That leads to the question "What is Noise?" Noise is the unwanted imperfections created by digital cameras as they try to capture the digital image. The amount of noise that is generated is determined by the quality and type of image sensor that created the image.
Dfine is a plug-in to Adobe Photoshop and other image editing applications; ones that support Photoshop Plug-ins, that can help you reduce noise in your images. Its goal is to reduce noise while still maintaining the detail and sharpness and therefore improving the quality of every image. Dfine will help fix problems due to fast or high ISO speeds as well as low light levels. It even works on JPEG artifacts.
So what is new with Dfine 2.0? Well first we have U Point® Technology; a dynamic and flexible technology that provides photographers a new way for editing digital images with out layers, masks or selections. It does this by using algorithms which consider relationships between color and light. It was first featured in Nikon's Capture NX Software. This allows you to reduce noise only where needed by using U Point Control Points
There is also Selective Functionality. This can be done three ways. As said before, it can be done by using control points. It can also be done by using Color Ranges; this is done by selecting to reduce noise within individual color ranges and is generally best done when working in a batch process. Lastly there is the Selective Tool. By using the brush tool in Photoshop or Elements, you can manage layers and layer masks.