Mapping accuracy via spectrally and structurally based filtering techniques: comparisons through visual observations

Letchumanan Chockalingam

doi:10.1117/12.583128

10 January 2005 Mapping accuracy via spectrally and structurally based filtering techniques: comparisons through visual observations

Letchumanan Chockalingam

Author Affiliations +

Proceedings Volume 5657, Image Processing and Pattern Recognition in Remote Sensing II; (2005) https://doi.org/10.1117/12.583128
Event: Fourth International Asia-Pacific Environmental Remote Sensing Symposium 2004: Remote Sensing of the Atmosphere, Ocean, Environment, and Space, 2004, Honolulu, Hawai'i, United States

Abstract

The data of Gunung Ledang region of Malaysia acquired through LANDSAT are considered to map certain hydrogeolocial features. To map these significant features, image-processing tools such as contrast enhancement, edge detection techniques are employed. The advantages of these techniques over the other methods are evaluated from the point of their validity in properly isolating features of hydrogeolocial interest are discussed. As these techniques take the advantage of spectral aspects of the images, these techniques have several limitations to meet the objectives. To discuss these limitations, a morphological transformation, which generally considers the structural aspects rather than spectral aspects from the image, are applied to provide comparisons between the results derived from spectral based and the structural based filtering techniques.

Citation Download Citation

Letchumanan Chockalingam "Mapping accuracy via spectrally and structurally based filtering techniques: comparisons through visual observations", Proc. SPIE 5657, Image Processing and Pattern Recognition in Remote Sensing II, (10 January 2005); https://doi.org/10.1117/12.583128

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