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Open AccessArticle

Why Not a Single Image? Combining Visualizations to Facilitate Fieldwork and On-Screen Mapping

by 1,2,* and 1
1
Research Centre of the Slovenian Academy of Sciences and Arts, Novi trg 2, 1000 Ljubljana, Slovenia
2
Centre of Excellence for Space Sciences and Technologies, Aškerčeva 12, 1000 Ljubljana, Slovenia
*
Author to whom correspondence should be addressed.
Remote Sens. 2019, 11(7), 747; https://doi.org/10.3390/rs11070747
Received: 28 February 2019 / Accepted: 20 March 2019 / Published: 27 March 2019
Visualization products computed from a raster elevation model still form the basis of most archaeological and geomorphological enquiries of lidar data. We believe there is a need to improve the existing visualizations and create meaningful image combinations that preserve positive characteristics of individual techniques. In this paper, we list the criteria a good visualization should meet, present five different blend modes (normal, screen, multiply, overlay, luminosity), which combine various images into one, discuss their characteristics, and examine how they can be used to improve the visibility (recognition) of small topographical features. Blending different relief visualization techniques allows for a simultaneous display of distinct topographical features in a single (enhanced) image. We provide a “recipe” and a tool for a mix of visualization techniques and blend modes, including all the settings, to compute a visualization for archaeological topography that meets all of the criteria of a good visualization. View Full-Text
Keywords: relief mapping; visualization; blend modes; digital elevation model; airborne laser scanning; lidar relief mapping; visualization; blend modes; digital elevation model; airborne laser scanning; lidar
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MDPI and ACS Style

Kokalj, Ž.; Somrak, M. Why Not a Single Image? Combining Visualizations to Facilitate Fieldwork and On-Screen Mapping. Remote Sens. 2019, 11, 747.

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