load the existing svm with python

opencv

asked 2016-08-16 22:45:16 -0600

littletom
30 ●2 ●4 ●8

How can I load the existing svm in opencv3 by python?

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answered 2016-08-16 23:02:19 -0600

berak
32993 ●7 ●81 ●312

if that is opencv3.1 (it won't work with 3.0), you should have a SVM_load() function, which creates a new SVM from a pretrained model like this:

 svm = cv2.ml.SVM_load("mymodel.xml")

you can check in the repl:

>>> help(cv2.ml.SVM_load)
Help on built-in function SVM_load:

SVM_load(...)
    SVM_load(filepath) -> retval

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import cv2 help(cv2.ml.SVM_load) Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: 'module' object has no attribute 'SVM_load'

well,the version of cv on my pc is indeed 3.1.0

littletom ( 2016-08-17 01:34:47 -0600 )edit

so your opencv version is too old (check cv2.__version__)

you're lacking this patch

berak ( 2016-08-17 01:47:42 -0600 )edit

cv2.__version__ '3.1.0'

littletom ( 2016-08-17 02:16:52 -0600 )edit

I've downloaded the zip file.What should I do for handling this file.

littletom ( 2016-08-17 02:18:09 -0600 )edit

yes, ok. missed it in the comment before.

so, what now ? either apply the patch, or get latest src from github. in both cases, it needs rebuilding opencv

berak ( 2016-08-17 02:19:38 -0600 )edit

How to apply the patch?by the way,where are you come from?I'm just curious about it.

littletom ( 2016-08-17 02:26:35 -0600 )edit

de.

please see here for buld instructions

berak ( 2016-08-17 02:27:34 -0600 )edit

that's wonderful! although I have no idea how to build it ,since I use the python(x,y) that allows me to apply the binary file directly.you help me a lot.

littletom ( 2016-08-17 02:56:22 -0600 )edit

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answered 2016-09-02 16:26:24 -0600

valium123
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I just downloaded and installed the latest opencv-master repo. But I still can't find that function

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maybe you need a master,for example,the guy who'd already answered this question.

littletom ( 2016-09-02 21:38:34 -0600 )edit

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