FAQ
BSQ to CG4 Conversion
What are BSQ files?
BSQ is a raw binary raster format developed by ESRI to store multi-band geospatial data, such as multispectral satellite imagery, aerial photography, and thematic surface classifications. As an uncompressed layout where data is organized sequentially by entire spectral bands—writing the full spatial matrix of the first band before starting the second—a file of this type contains no internal metadata, georeferencing, or projection tags. To function properly within a geographic information system, a BSQ file requires a mandatory plain-text sidecar file with a .hdr extension that explicitly defines structural parameters like row and column counts, band numbers, and data types. This format is typically accompanied by other sibling files, including .bsw for spatial world coordinates and .prj for the map projection.
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 BSQ to CG4?
Yes! reaConverter instantly converts .bsq 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 BSQ 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 BSQ to CG4 online?
If you only need to convert a few BSQ files to CG4 format, feel free to try our free online free online BSQ to CG4 converter — perfect for small batches with no installation needed!
How can I turn BSQ files into CG4 on my computer?
The best way to change BSQs 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 BSQ to CG4.
How can I automate BSQ 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 BSQ 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 bsq to cg4 converter for batch processing.
What else can I do with reaConverter?
Convert vector filesChange image DPITrace images to vectorSet image bit depthChange format settings
Related conversions
Other ways to convert BSQ files, and other sources that convert to CG4.
