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Bilko Software

Downloading the Software

The latest install version of Bilko 3.4 from March 2019 is now available. This fixes known bugs in previous versions, and offers improved support for batch processing.

Download the new install version by entering your registered e-mail address below. If you are new to Bilko, please register first, using the link on the top menu bar.




Software description

Platform and operating system

Bilko v.3.4 is designed to run on PCs running Windows 7 - 10, Windows Vista, and Windows XP. If you need a version that runs on an earlier operating system, please get in touch.

Bilko also runs on Intel Macs with WINE (free), Parallels or VMware Fusion.
Quick guide to installing WINE and Bilko on a Mac (PDF). Bilko should run in a similar way on Linux with WINE.

Software features

The Bilko tutorial covers most of the software features. Additional lessons for more recent features are available from the links below.

  • Interactive and batch mode processing of up to 4096 images
  • Supervised and unsupervised classification
  • Principal Component Analysis
  • Context sensitive help program
  • Support for common image formats used in remote sensing
  • Support for reading compressed image formats
    • bzip2, gzip and zip
    • currently limited to compressed NetCDF, ESA N1 and Sentinel-2 L1C data
  • Handling of 3D and multiband data for up to 512 bands/images
    • Actual capacity depends on image size and computer memory
    • Support for 8-bit, 16-bit, 32-bit and floating point data
    • Support for NaNs and customer defined Null values
    • Image manipulation and display tools:
      • Contrast stretching
      • Application and design of colour palettes
      • Display and creation of colour composites
      • Zoom, Mirror, Flip and 180° rotation
      • Colour bar, scroll-bars and status-bar displaying pixel information
      • Full-Screen mode
      • Customised display of 16-bit, 32-bit and floating-point data
      • Extract tool for sub-sampling in the X, Y and Z dimensions
    • Image editing and analysis tools:
      • Animations
      • Easy selection of specified points, lines and sub-areas
      • Data-coring (spectral or time series)
      • Transects, histograms, scatter-plots, Hovmöller diagrams
    • Data processing tools:
      • Predefined and custom designed filters
      • Application of flags, masks, and coastlines
      • Image calculations using formulae with sets of images
      • Image rectification, resampling, and co-registration
      • Geocorrection using Ground Control Points or tie-point tables
      • Automatic geocorrection of Envisat and Earth Explorer data
        • MERIS, ASAR, AATSR, ERS and RA-2
        • SMOS and CryoSat
      • Processing using 'drag and drop' or via the clipboard
    • Export to ASCII (text/spreadsheets) via the Windows clipboard

    Batch processing of image data

    The latest version of Bilko also offers limited support for batch-processing of image data from the Windows Command line. This is based on Bilko sets (lists of files and parameters to be extracted from these) and formula documents (mini-programs) containing processing instructions. The batch processing capability is currently being tested by selected Bilko users.


Bilko screenshot
From the Envisat lesson on ocean eddies

Bilko screenshot
Principal Component Analysis in a Bilko mini-lesson

Bilko screenshot
Screenshot from an EAMNet lesson on subpixel cloud.

Bilko screenshot
The Bilko classification lesson

Bilko screenshot
Screenshot from the El Niñno lesson

Bilko screenshot
Screenshot from the Amazon lesson

Bilko screenshot
Polar projection MERIS in the LearnEO! tutorial

Last update: 31 January 2018      Contact          Up         Site Policy         Next: Tutorials and Lessons Next