Directional morphological image transforms for lineament extraction from remotely sensed images

Morphological image transforms find their basis in the notions of mathematical morphology. An attempt is made to develop morphological transforms for enhancement of directional edges and lineaments from satellite imagery. Geostructural features are generally oriented in preferred directions. This in...

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Published in:International journal of remote sensing 2000, Vol.21 (17), p.3281-3292
Main Authors: Tripathi, N. K., Gokhale, K. V. G. K., Siddiqui, M. U.
Format: Article
Language:English
Subjects:
Applied geophysics
Earth sciences
Earth, ocean, space
Exact sciences and technology
Internal geophysics
Tectonics. Structural geology. Plate tectonics
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container_title International journal of remote sensing
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creator Tripathi, N. K.
Gokhale, K. V. G. K.
Siddiqui, M. U.
description Morphological image transforms find their basis in the notions of mathematical morphology. An attempt is made to develop morphological transforms for enhancement of directional edges and lineaments from satellite imagery. Geostructural features are generally oriented in preferred directions. This information has been utilized in designing structuring elements for morphological transforms. Several shapes and sizes of structuring elements have been designed and applied to delineate lineaments in different litho-environments of the same study area. Top hat transform has been applied using the directional structuring elements for edge image at 0 o , 30 o , 60 o , 90 o , 120 o and 150 o . Geological lineaments such as faults could be easily identified on an edge image obtained using top hat transformation followed by an image superimposition technique. The lineament map was developed using directionally enhanced edge images and the results have been verified.
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subjects Applied geophysics
Earth sciences
Earth, ocean, space
Exact sciences and technology
Internal geophysics
Tectonics. Structural geology. Plate tectonics
title Directional morphological image transforms for lineament extraction from remotely sensed images
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