Supervised classification in QGIS || A complete Tutorial || 100%

Supervised classification is based on the idea that a user can select sample pixels in an image that are representative of specific classes and then direct the image processing software to use these training sites as references for the classification of all other pixels in the image.

In this tutorial, I demonstrate how to carry out supervised classification in QGIS.

Enjoy

[jessebuyungo]

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[Ramdrums]

Thanks, Jesse! Love your tutorials bro...

[YudanWang]

don't know why I can not draw multiple poligons in train data, but thank you for the tutorial.

[bhanupriyasharmabordoloi]

This is very useful for me thank you so much.

[acinad]

please create a tutorial of preprocessing and supervised classification/indices of mangrove cover using planet data

[아베다학생지구환경과]

hello. i made the classified image. when i use the 'identify features' option and click on any pixel, then i get the pixel value as i assigned and i get the lat-lon of that point. but i cannot find any attribute table or anything that lists up all the lats and lons as an array. so basically i am trying to use the pixel values from this file and change another files values at the same lat-lon point. how can i get the lat-lon of all the points of my classified image?

[reyhan]

In my project. At the Classification menu section has a 'select at least one signature' notification, and then so what should I do?

[macmodelsitera]

hi im facing the problem ie the following signature will be excluded if using, max likelihood

[Offlineporhoje]

I'm trying to do this with a multiband image but I can't find this option, what version of Qgis and the SCP plug-in were you using?

[shriramkathar]

sir i have question, for calculating NDWI or any indices it is required to convert DN to TOA radiance

[KatherineLosada]

After collecting all of the training data, I was unable to run the classification. I got messages saying "error: process failed", "SCP: multiprocess: error classification", and "SCP: covariance matrix". Are you familiar with these errors?

[I__JOJO]

Do one on how to create a map on average annual data of a place

[hima]

I was following full process why showed classification errors? After declaring classifier

[airedav]

Thanks Jesse for your awesome work. Please I wish to inquire how I can extract all rooftop images of buildings across a city and store them as individual images?

[mudhefferameen]

Why I can't make more than one sample. When I draw another sample, the previous sample disappeared. Please answer me