FAQ
DIM to CG4 Conversion
What are DIM files?
DIM (Digital Image MAP) is a metadata-driven format for satellite imagery, developed by the French space agency CNES together with SPOT Image to describe products from the SPOT and Pléiades missions. A dataset consists of an XML file with the .dim extension and one or more image files stored beside it, usually as GeoTIFF or JPEG 2000 rasters, while earlier versions used BIL and TIFF files. The XML document describes the product identification, acquisition date and time, sensor and satellite parameters, geometric processing level, coordinate reference system, band names and order, radiometric calibration values, sun and viewing angles, and the image dimensions. Related files may hold preview images, quality masks, and rational polynomial coefficients for sensor model correction. The format is applied to panchromatic, multispectral, and pan-sharpened scenes at several processing levels, from primary to orthorectified products, and the .dim file acts as the entry point to the whole dataset.
What are CG4 files?
CG4 is a raster format associated with CALS (Continuous Acquisition and Life-Cycle Support) — a program initiated by the US Department of Defense to capture and link military data. CG4 is compatible with a very limited number of digital graphics programs. Files with this extension contain a bitmap that often uses the CCITT4 compression, which is an old fax machine standard used for black-and-white images.
Can reaConverter convert DIM to CG4?
Yes! reaConverter instantly converts .dim to .cg4 with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.
What is reaConverter used for?
reaConverter is a Windows converter for 800+ formats, GIS data among them. For DIM to CG4 it replaces the usual detour through QGIS, ArcGIS or ogr2ogr: add the files, pick the output format, and the whole batch converts offline. Surveyors, planners and engineering teams use it to pass data between GIS, CAD and everyday document formats.
Why choose offline conversion with reaConverter?
reaConverter is a software program that is used for offline files conversion. Your proprietary documents never leave your computer – essential for architects, engineers, healthcare and government contractors handling classified projects. Meets GDPR, HIPAA, CCPA, and corporate security policies by ensuring files never cross borders or third-party systems.
Can I convert DIM to CG4 online?
If you only need to convert a few DIM files to CG4 format, feel free to try our free online free online DIM to CG4 converter — perfect for small batches with no installation needed!
How can I turn DIM files into CG4 on my computer?
The best way to change DIMs to CG4s on your PC is to install a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from DIM to CG4.
How can I automate DIM to CG4 files conversion?
reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.
Is there a way to convert DIM files to CG4 using the command prompt?
reaConverter provides full access to all its features via Windows command line, including a high-performance command-line dim to cg4 converter for batch processing.
What else can I do with reaConverter?
Change format settingsCopy metadata (EXIF, IPTC)Convert medical imagesChange photo sizeConvert DICOM files
Related conversions
Other ways to convert DIM files, and other sources that convert to CG4.
