Electronic Light Table (ELT) imaging software for UNIX workstations

• Can create and Roam any size image including those larger than 64k x 64k
• Direct support for images > 2GB
• Full time image Mensuration including integration with NGA Ruler
• True 16-Bit processing
• Software Roam with directed search area capability
• NITFS 2.0/2.1 Level 7
• IPL/PPS/OPS/NGA Library client
• Direct TFRD ingestion
• Stereo viewing capability in either split screen mono or true stereo.
• Image chain analysis approved look-up table controls for various national sensors
• Image chain analysis approved filters including: sharpen, blur and edge detection filters for E/O, I/R and Radar
• Intuitive Annotation capability including:  lines, polylines, polygons, circles, rectangles, icons and text
• Automatic north arrow
• Native NITF Processing
• Label and auto-count Icons
• GSD support with graphic report (USMTF) read/write
• SHAPEFILE support
• Vector Product Format (VPF) support
• Integrated with NGA hardcopy look-up tables for enhanced quality prints
• Image comparison capabilities for dual image display with locked roam and flicker
• Image registration and auto mosaicking
• Waterfall display Screener
• Modular architecture, including programmer’s interface toolkit

VITec Electronic Light Table (ELT) imaging software allows users to quickly input, roam, annotate, manipulate, and output images from photographs, film, satellite images, maps, charts, and other real world data.

Images are loaded through the VITec VCT or by filename/icons of the actual images. Once loaded, the chip functionality within VITec ELT allows users to cut out and resize the image. Also, users can create image chips of the main image, reduced resolution data sets of the main image, or, they can crop the main image, deleting unnecessary border areas.

VITec ELT incorporates a robust set of enhancement tools. Experienced users can execute interactive histogram adjustments by altering the tonal transfer curve. For less advanced users, VITec ELT offers brightness, contrast, and saturation sliders, to perform interactive histogram modifications. VITec ELT also has sliders for haze and glare reduction. Additionally, VITec ELT employs a series of Look-Up-Table algorithms, such as histogram equalization, maximum contrast, standard deviations, false coloring, and various pre-computed thresholds, for quick and easy image enhancements. VITec ELT contains hundreds of filters for image sharpening, smoothing, noise reduction, and edge detection. All of the enhancement functionality within VITec ELT may be performed on the entire image, or on any arbitrary region of interest (ROI).

The annotation capabilities of VITec ELT are the most robust in the industry. Users can add, edit or overlay text, icons and graphics on the image with this tool, and then manipulate the annotations independent from the underlying image. Users can interactively rotate and scale text without fear of aliasing, due to the publishing font generator included with the package. Annotation may be saved with the image or saved as a separate annotation file. By saving annotation in separate files, users can recall previous target graphics on top of newly acquired imagery, without going through the manual process of re-drawing each piece of annotation.

Also, VITec ELT has a defined UNIX interface which allows the transfer of images from a database management system (DBMS), enabling easy integration into the existing work environment.