Unsupervised ISODATA algorithm classification used in the landsat image for predicting the expansion of Salem urban, Tamil Nadu

Vimala R  lowast; Marimuthu A; Venkateswaran S; Poongodi R

doi:10.17485/IJST/v13i16.271

Article

Unsupervised ISODATA algorithm classification used in the landsat image for predicting the expansion of Salem urban, Tamil Nadu

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Indian Journal of Science and Technology

DOI: 10.17485/IJST/v13i16.271

Year: 2020, Volume: 13, Issue: 16, Pages: 1619-1629

Original Article

Unsupervised ISODATA algorithm classification used in the landsat image for predicting the expansion of Salem urban, Tamil Nadu

Vimala R^1∗, Marimuthu A² , Venkateswaran S³ , Poongodi R³

1 Department of Computer Science, Government Arts College for Women, Salem, India
2 Department of Computer Science, Government Arts College, Coimbatore, India
3 Department of Geology, Periyar University, Salem, India

∗Corresponding author
Vimala R
Department of Computer Science, Government Arts College for Women, Salem, India
Email: [email protected]

Received Date:15 April 2020, Accepted Date:09 April 2020, Published Date:07 June 2020

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Objectives: To study the land cover change Salem city as a case study of urban expansion in India covering the span of 35 years from 1990 to 2025. Method: Remote sensing methodology is adopted to study the geographical land use changes occurred during the study period (year 1990- 2025). Landsat images of TM and ETM+ of Salem city area are collected from the USGS Earth Explorer website. After image pre-processing, unsupervised image classification has been performed to classify the images into different land use categories. Seven land use classes have been identified as road, urban (Build up), vegetation, water bodies, fallow land, mines and barren land. Classification accuracy is also estimated using the field knowledge obtained from field surveys. Findings: The obtained accuracy is between 83 to 86% of all the classes. Change detection analysis shows the built-up area has been increased by 1.49 km2 , vegetation area has been decreased by 11.55km2 . Application: Information on Urban growth, land use and land cover change study is very useful to local Government and Urban Planners for the betterment of the future plans of sustainable development of the city.

Keywords: Land use /Land cover; Urban Sprawl; Urbanization; Remote Sensing; Landsat data; Salem city

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Copyright

© 2020 R, A, S, R. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Published By Indian Society for Education and Environment (iSee)