How to give Image as Input to SVM

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Tallha Akram
Tallha Akram 2012-4-14
评论： Pratik Oak 2015-8-4
Let image is (n*n) matrix. If i change it to (N^2*1) matrix,
the SVMtrain gives error " SVM must have 2 column Matrix". To change the Image into two columns doesnt look logical. I want Face recognition using MultuSVM but unable to get the idea of storing image in format. (X1, X2) with Classes(yi).
  2 个评论
Ahmed
Ahmed 2014-9-18
Please post the line that calls the 'svmtrain' function, the sizes of your data and label matrix/vector and the exact error message. The line "SVM must have 2 column Matrix" does not sound like literally taken from the command prompt output.
Pratik Oak
Pratik Oak 2015-8-4
You have to give the features of an image as input to svmtrain. Not direct image.

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回答（1 个）

Pratik Oak
Pratik Oak 2014-9-18
Hi we cant give image as input to svm. U should calculate feature/features of an image. Give that features matrix as input to svm.
  1 个评论
Ahmed
Ahmed 2014-9-18
Under certain circumstances it is possible to input the images directly. For instance, if the images are registered. However, for face recognition this probably won't work (sufficiently) well.

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