Horos - A free, open source 64-bit DICOM medical image viewer
Saint Paint Studio - Saint Paint - The Essential Image Editor
MicroDicom - DICOM viewer. MicroDicom is a free DICOM viewer. Export to the most common picture formats, movie, clipboard. It is equipped with most common tools for manipulation of DICOM images.
AliveColors - AliveColors is comprehensive graphics and photo editing software for Windows and Mac.
Materialise Mimics - Materialise Mimics is software specially developed by Materialise for medical image processing.
Sagelight - Sagelight is a comprehensive editing platform that allows adding multiple features to the images by improving, retouching, modifying the selective pics with high-quality work.