how to apply SVM algorithm for classification for multispectral remote sensing data?

Question

Priyanka Athawale 2014-1-7

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/111634-how-to-apply-svm-algorithm-for-classification-for-multispectral-remote-sensing-data

编辑： Walter Roberson 2016-11-23

采纳的回答： Image Analyst

i am going to separate various colors from the image using SVM so want to know how to start ?

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Image Analyst 2014-1-7

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/111634-how-to-apply-svm-algorithm-for-classification-for-multispectral-remote-sensing-data#answer_120288

How many color classes do you have? Are you sure SVM is the best approach - why do you want to use it? I think it's mainly for two class situations but there is a multi-class extension to it.

I have some color segmentation demos in my File Exchange: http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862

2 个评论
显示无隐藏无

Priyanka Athawale 2014-1-8

dear sir , thank u for the reply !! m sure I want to go with SVM for multicolor(multiclass) classification on remote sensing image. but Am very confused from where to start? please if u have any idea plz help me for the same.the classes may be 3 , 4 , 5 because my aim is to classify various crops on Indian agricultural land .

Image Analyst 2014-1-8

Sorry, I have not used multi-class SVM for color classification (yet). You will find color classification algorithms for remote sensing images here: http://iris.usc.edu/Vision-Notes/bibliography/contentscartog.html#Cartography,%20Aerial%20Images,%20Remote%20Sensing,%20Buildings,%20Roads,%20Terrain,%20ATR

请先登录，再进行评论。

Answer 2

Yinguang Li 2014-1-7

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/111634-how-to-apply-svm-algorithm-for-classification-for-multispectral-remote-sensing-data#answer_120286

You can go to the website http://www.mathworks.com/help/stats/support-vector-machines.html for more information, or type 'demo toolbox statistics' in your matlab command window suppose you have a statistical toolbox installed.

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Priyanka Athawale 2014-1-8

hello sir,

thank u for ur reply ..!! I have statistic toolbox , N got the option feature selection there . but how to proceed for SVM after that? and I have only one image , so how to check its accuracy , whether the classification is accurate or not??

请先登录，再进行评论。