Enhancing the Google imagery using a wavelet filter

Abstract

In some previous papers we proposed the use of free software for a processing of the Google satellite imagery. Here we discuss the use of a wavelet filter for the same purposes. This filter is a tool included in a freely downloadable software (Iris), well-known for the processing of astronomical images. Combining the image obtained after applying the wavelet filter, with an image created with Gimp and AstroFracTool, the visibility of the landforms, as obtained from Google Maps, is strongly increased. Among several possible examples, we proposed a crater, a paleochannel and the Great Bend of the Nile.

Keywords: Satellite maps, Landforms, Image processing, Wavelets

References in corpus (4)

• Astronomical image processing based on fractional calculus: the AstroFracTool
• Crater-like landform in Bayuda desert (a processing of satellite images)
• Craters and ring complexes of the North-East Sudanese country
• Small simple impact craters

Cited by in corpus (11)

• Arabia: from craters to stone circles
• Merowe Dam and the inundation of paleochannels of the Nile
• The decreasing level of Toshka Lakes seen from space
• The sunrise amplitude equation applied to an Egyptian temple
• Portraits of Julius Caesar: a proposal for 3D analysis
• A self-portrait of young Leonardo
• Lines, dots and spirals on Peruvian land
• An image processing of a Raphael's portrait of Leonardo
• The small mounds of Bayuda region
• A possible role of sunrise/sunset azimuth in the planning of ancient Chinese towns
• The cradle of pyramids in satellite images