Remote Sensing Tools

GeoSage Releases Spectral Transformer B742B321 — easily making natural-color, 14.25 meter resolution imagery from false-color GeoCover series Landsat bands 7,4,2.

Sydney, Australia — 2 May 2007: GeoSage is pleased to release Spectral Transformer B742B321, a powerful utility tool for producing high-quality, natural-color imagery (simulating Landsat bands 3,2,1) from pan-sharpened, false-color 14.25 meter resolution Landsat bands 7,4,2 of NASA GeoCover.

Medium-resolution, natural-color Landsat imagery is an excellent and indispensable mapping layer for observing land covers in major virtual globes such as Google Earth and Microsoft Virtual Earth. The input for such global Landsat imagery is the enduring GeoCover Landsat series, which is now publicly available in many forms.

Spectral Transformer B742B321 uses pan-sharpened, false-color Landsat bands 7,4,2 as inputs. Both individual scenes and mosaic tiles are acceptable. For un-stretched individual scenes with full dynamic ranges, Spectral Transformer B742B321 includes an intelligent and highly-efficient image stretching option; and for mosaic tiles with color balancing already applied, B742B321 includes a number of color templates during false-to-true color simulations. Processed natural-color, full-scene images at 14.25 meter resolution for the following ten worldwide cities are available at the GeoSage website, for evaluation and non-commercial use:

• Vancouver: 17738 x 15966 pixels, 24.8 MB
• San Francisco: 17254 x 15490 pixels, 32.6 MB
• New Orleans: 16956 x 15136 pixels, 26.2 MB
• New York: 17480 x 15488 pixels, 14.5 MB
• Washington, D.C.: 18058 x 15986 pixels, 35.8 MB
• Paris: 18114 x 16232 pixels, 32.7 MB
• Jerusalem: 17154 x 15146 pixels, 29.6 MB
• Kuala Lumpur: 17276 x 15096 pixels, 25.1 MB
• Seoul: 18086 x 15978 pixels, 29.4 MB
• Tokyo: 17982 x 15980 pixels, 30.2 MB

This tool is of great potential use since 14.25 meter resolution, false-color Landsat bands 7,4,2 imagery is now widely available in the public domain. It can be licensed separately or as an add-on to GeoSage HighView.

Detailed features and a three-step tutorial are available at the following web site:
http://www.geosage.com/