Hi Nishad, If you are going to classify Landsat Data, you should do a Supervised Classification. This means that you provide input points, whose Landuse you know. This is an iterative method, where you need to provide inputs for the algorithm to give a better output.
The Link that you shared does Un-Supervised Classification, i.e. without any apriori knowledge, and hence the output quality will be lower. I'll suggest you have a look at the Semi-Automatic Classification Plugin <https://fromgistors.blogspot.com/p/semi-automatic-classification-plugin.html> for QGIS. The website has excellent video tutorials which show you how you can achieve a decent LULC classification. Regards, Devdatta On Tue, Sep 12, 2017 at 9:18 AM, nishadh <[email protected]> wrote: > Hi, > > Land use land cover classification for India for the year 1985-2005 based > on Landsat satellite imagery is available in public domain as geotiff > imagery https://daac.ornl.gov/VEGETATION/guides/Decadal_LULC_India.html > > To get the latest year land use land cover statistics such as of 2015, > requires need of classification on raw images. Python with its open source > libraries such as rasterio, numpy and scipy is apt to carry out > classification. There is a tutorial describing the various steps to address > using Python https://www.machinalis.com/blog/python-for-geospatial- > data-processing/ > > However assessing the classification accuracy and result comparable with > above open data is no where near to expectations. Requesting guidance in > this regard. > > Regards, > > Nishadh.K.A. > > -- > Datameet is a community of Data Science enthusiasts in India. Know more > about us by visiting http://datameet.org > --- > You received this message because you are subscribed to the Google Groups > "datameet" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- Datameet is a community of Data Science enthusiasts in India. Know more about us by visiting http://datameet.org --- You received this message because you are subscribed to the Google Groups "datameet" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
