Link to the UNESCO-IOC website
Link to the Bilko website
Earth from space
Contrast stretching as part of the redisplay routines optimises display of 16-bit data

Downloading the Software

The latest version of Bilko was issued in November 2007. If you have already registered, you can download this by entering your e-mail address in the box below. If you are new to Bilko, please register first, using the link on the top menu bar.

   

 
True colour composite image from MERIS bands 6, 4 and 2

Software Description

This is the latest version of Bilko 3.2, released in October 2007.

Platform and operating system

Bilko v3 is designed to run on PCs running Windows 2000 and Windows XP, but will also run on Windows 95, Windows 98 and Windows NT 4.0 or later.

Classification thumbnail

Software features

The latest version, currently under beta-testing, has been substantially extended and improved. The new software now features:

Supervised and unsupervised classifiation

Principal Component Analysis

A colour palette brings out details of chlorophyll concentration

Context sensitive help program

Support for common image formats used in remote sensing   MORE

Handling of 3-D and multiband data (up to 64 channels)   MORE

Support for 8-bit, 16-bit, 32-bit and floating point data

Bilko palette tool

Support for NaNs and customer defined Null values

Image manipulation and display tools:

  Contrast stretching   MORE
Applcation and design of colour palettes   MORE
Display and creation of colour composites    
Bilko histogram of chlorophyll data
  Zoom, Mirror, Flip and 180° rotation
Colour bar, scroll-bars and status-bar displaying pixel information
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    
Gradient filtering brings out internal wave signatures in MERIS FR data
  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   MORE
RA-2 sea surface height anomaly and AATSR sea surface temperature
  Application of flags, masks, and coastlines    
Image calculations using formulae with sets of images   MORE
Image rectification, resampling, and co-registration    
Geocorrection using Ground Control Points or tie-point tables    
Automatic geocorrection of Envisat data (MERIS, ASAR, AATSR, RA-2)

Export to ASCII (text/spreadsheets) via the Windows clip-board
 
Last update: 03 December 2008      Contact          to top of page         Site Policy         Credits     Next: Tutorials and Lessons   next