A technique for generating natural colour images from false colour composite images

2006 ◽  
Vol 27 (14) ◽  
pp. 2977-2989 ◽  
Author(s):  
S. K. Patra ◽  
Manish Shekher ◽  
S. S. Solanki ◽  
R. Ramachandran ◽  
R. Krishnan
1992 ◽  
Vol 16 ◽  
pp. 190-192
Author(s):  
Cao Meisheng ◽  
Mi Desheng ◽  
Pu Yinbin ◽  
Liu Jinghaung

According to the analysis of grey scale range on MSS-4, -5, -6 and -7 channel image films for five snow-ice categories on glacier surface, the grey scale among snow, bare ice, ice pinnacle, moraine-covered ice surface and gully bed has been spread nonlinearly by using duplicative processing on high-contrast film. As a result of the rescaling of grey levels, the colour differences of morphological features of Rongbu Glacier in the Qpmolangma region have been increased on false colour composite photography. It is also shown that using MSS-6 to composite false colour images compared to MSS-5 will supply more information for the interpretation of the glacier area.


1992 ◽  
Vol 16 ◽  
pp. 190-192
Author(s):  
Cao Meisheng ◽  
Mi Desheng ◽  
Pu Yinbin ◽  
Liu Jinghaung

According to the analysis of grey scale range on MSS-4, -5, -6 and -7 channel image films for five snow-ice categories on glacier surface, the grey scale among snow, bare ice, ice pinnacle, moraine-covered ice surface and gully bed has been spread nonlinearly by using duplicative processing on high-contrast film. As a result of the rescaling of grey levels, the colour differences of morphological features of Rongbu Glacier in the Qpmolangma region have been increased on false colour composite photography. It is also shown that using MSS-6 to composite false colour images compared to MSS-5 will supply more information for the interpretation of the glacier area.


Geografie ◽  
1993 ◽  
Vol 98 (3) ◽  
pp. 170-178
Author(s):  
Miroslav Koželuh

The land-use mapping method based on the interpretation of satellite imagery is described. Out of various processes applied for obtaining the information on parcelation and thematic contents of the land-use map, the visual interpretation of multispectral false colour composite (FCC) of LANDSAT TM was used. The practical applicability of this method has been verified by the construction of land-use maps on the scales 1 : 50 000 and 1 : 200 000 on the territory of Southern Moravia.


2021 ◽  
Vol 5 ◽  
pp. 44-51
Author(s):  
Georgi Jelev

This study presents the possibilities for using different colour models for visual interpretation of satellite imagery. Using the RGB model to visualise different spectral bands as a false colour composite image make it possible for different types of objects and features on the Earth surface to be highlighted and easily discerned based on their specific colour. Examples are shown based on satellite imagery from several free sources, e.g. the USGS’s Earth Explorer, the ESA’s Copernicus Open Access Hub, etc.


Afrika Focus ◽  
1991 ◽  
Vol 7 (1) ◽  
pp. 15-48
Author(s):  
Beata Maria De Vliegher

The mapping of the land use in a tropical wet and dry area (East-Mono, Central Togo) is made using remote sensing data, recorded by the satellite SPOT. The negative, multispectral image data set has been transferred into positives by photographical means and afterwards enhanced using the diazo technique. The combination of the different diazo coloured images resulted in a false colour composite, being the basic document for the visual image interpretation. The image analysis, based upon differences in colour and texture, resulted in a photomorphic unit map. The use of a decision tree including the various image characteristics allowed the conversion of the photomorphic unit map into a land cover map. For this, six main land cover types could be differentiated resulting in 16 different classes of the final map.


Geologos ◽  
2019 ◽  
Vol 25 (3) ◽  
pp. 241-248
Author(s):  
Tatiana Solovey

Abstract Results of research of the identification of flooding as a result of groundwater table fluctuations on the example of the valley of the River Vistula, with the use of multi-spectral Sentinel-2 images from the years 2017–2018 are presented. An analysis of indexes of water use, calculated on the basis of green, red and shortwave infrared (SWIR) bands, for extraction of water objects and flooded areas was carried out. Based on the analyses conducted, a mapping method was developed, using three water indexes (MNDWI Modified Normalised Difference Water Index, NDTI Normalised Difference Index and NDPI Normalised Difference Pond Index). Results show that the 10 metre false colour composite RNDTIGNDPIBMNDWI obtained significantly improved submerged extractions more than did individual water indexes. Moreover, the 10-m-images of MNDWI and NDPI, obtained by the sharpening High Pass Filter (HPF), may represent more detailed spatial information on floods than the 20-m-MNDWI and NDPI, obtained from original images.


2007 ◽  
Vol 38 (1) ◽  
pp. 330-333
Author(s):  
Yuzo Hisatake ◽  
Hideki Ito ◽  
Masaki Obi ◽  
Yasushi Kawata ◽  
Akio Murayama
Keyword(s):  

Sign in / Sign up

Export Citation Format

Share Document