Image formats:

• DICOM (with tag viewer)

Image display:

• Multi-plane viewing
• Oblique slicing/projection
• Interactive window/levelling
• Lookup table manipulation

Image processing:

• Fusion
• Filtering (average, median, Sobel, Gaussian, noise)
• Masking
• Registration
• Resampling

ROI analysis:

• Definition (rectangular, elliptical, freehand, intensity contour, region grow, gradient finding)
• Grouping into composite ROIs, splitting into component ROIs
• Import from DICOM RT structure sets
• Manipulation (moving, editing vertices, resampling, smoothing, morphologic operators)
• Analyze pixel statistics
• Export to DICOM RT structure set