Grainy pictures are often the result of a low quality camera or using an ISO that is too high for the conditions while taking the picture. A substantial amount of camera movement also can cause graininess in the corner of a photograph. But there is a method using Photoshop that can help you repair your grainy pictures.
   1.Use the link in the Photoshop resources section to download the Imagenomics Noiseware Professional software.
   2.Open your picture in Photoshop and create a duplicate copy by selecting