View source for OpenCV Workshop Python distribution of keywords

List of the 50 most represented OpenCV members of the Python package in the documentation examples.
* [http://opencv.willowgarage.com/documentation/python/search.html?q=ShowImage ShowImage] 43
* [http://opencv.willowgarage.com/documentation/python/search.html?q=NamedWindow NamedWindow] 30
* [http://opencv.willowgarage.com/documentation/python/search.html?q=Scalar Scalar] 29
* [http://opencv.willowgarage.com/documentation/python/search.html?q=RGB RGB] 28
* [http://opencv.willowgarage.com/documentation/python/search.html?q=CV_RGB CV_RGB] 28
* [http://opencv.willowgarage.com/documentation/python/search.html?q=CreateImage CreateImage] 27
* [http://opencv.willowgarage.com/documentation/python/search.html?q=Sub Sub] 26
* [http://opencv.willowgarage.com/documentation/python/search.html?q=Round Round] 25
* [http://opencv.willowgarage.com/documentation/python/search.html?q=WaitKey WaitKey] 24
* [http://opencv.willowgarage.com/documentation/python/search.html?q=__name__ __name__] 19
* [http://opencv.willowgarage.com/documentation/python/search.html?q=Zero Zero] 19
* [http://opencv.willowgarage.com/documentation/python/search.html?q=Line Line] 17
* [http://opencv.willowgarage.com/documentation/python/search.html?q=CV_AA CV_AA] 17
* [http://opencv.willowgarage.com/documentation/python/search.html?q=Load Load] 15
* [http://opencv.willowgarage.com/documentation/python/search.html?q=CloneImage CloneImage] 15
* [http://opencv.willowgarage.com/documentation/python/search.html?q=Set Set] 14
* [http://opencv.willowgarage.com/documentation/python/search.html?q=LoadImage LoadImage] 14
* [http://opencv.willowgarage.com/documentation/python/search.html?q=Copy Copy] 14
* [http://opencv.willowgarage.com/documentation/python/search.html?q=ScalarAll ScalarAll] 12
* [http://opencv.willowgarage.com/documentation/python/search.html?q=RealScalar RealScalar] 12
* [http://opencv.willowgarage.com/documentation/python/search.html?q=GetSize GetSize] 12
* [http://opencv.willowgarage.com/documentation/python/search.html?q=CreateMat CreateMat] 12
* [http://opencv.willowgarage.com/documentation/python/search.html?q=CreateTrackbar CreateTrackbar] 11
* [http://opencv.willowgarage.com/documentation/python/search.html?q=Convert Convert] 11
* [http://opencv.willowgarage.com/documentation/python/search.html?q=GetSubRect GetSubRect] 10
* [http://opencv.willowgarage.com/documentation/python/search.html?q=DestroyWindow DestroyWindow] 10
* [http://opencv.willowgarage.com/documentation/python/search.html?q=Scale Scale] 9
* [http://opencv.willowgarage.com/documentation/python/search.html?q=Circle Circle] 9
* [http://opencv.willowgarage.com/documentation/python/search.html?q=Threshold Threshold] 8
* [http://opencv.willowgarage.com/documentation/python/search.html?q=DFT DFT] 8
* [http://opencv.willowgarage.com/documentation/python/search.html?q=Min Min] 6
* [http://opencv.willowgarage.com/documentation/python/search.html?q=CreateMemStorage CreateMemStorage] 6
* [http://opencv.willowgarage.com/documentation/python/search.html?q=ConvertScale ConvertScale] 6
* [http://opencv.willowgarage.com/documentation/python/search.html?q=Add Add] 6
* [http://opencv.willowgarage.com/documentation/python/search.html?q=RandInt RandInt] 5
* [http://opencv.willowgarage.com/documentation/python/search.html?q=RandArr RandArr] 5
* [http://opencv.willowgarage.com/documentation/python/search.html?q=IPL_DEPTH_64F IPL_DEPTH_64F] 5
* [http://opencv.willowgarage.com/documentation/python/search.html?q=CV_RAND_NORMAL CV_RAND_NORMAL] 5
* [http://opencv.willowgarage.com/documentation/python/search.html?q=CV_FILLED CV_FILLED] 5
* [http://opencv.willowgarage.com/documentation/python/search.html?q=CV_32FC CV_32FC] 5
* [http://opencv.willowgarage.com/documentation/python/search.html?q=CV_32F CV_32F] 5
* [http://opencv.willowgarage.com/documentation/python/search.html?q=32FC 32FC] 5
* [http://opencv.willowgarage.com/documentation/python/search.html?q=Subdiv2DRotateEdge Subdiv2DRotateEdge] 4
* [http://opencv.willowgarage.com/documentation/python/search.html?q=SetIdentity SetIdentity] 4
* [http://opencv.willowgarage.com/documentation/python/search.html?q=QueryFrame QueryFrame] 4
* [http://opencv.willowgarage.com/documentation/python/search.html?q=Pow Pow] 4
* [http://opencv.willowgarage.com/documentation/python/search.html?q=Or Or] 4
* [http://opencv.willowgarage.com/documentation/python/search.html?q=Erode Erode] 4
* [http://opencv.willowgarage.com/documentation/python/search.html?q=Dilate Dilate] 4
* [http://opencv.willowgarage.com/documentation/python/search.html?q=CvtColor CvtColor] 4


This is done via
<pre>
import os.path
import re

import cv

cv_vars = vars(cv)
# some patterns could be ignore, e.g. __ found in __name__
cv_vars_counters = dict()

examples_path = '/usr/share/doc/opencv-doc/examples/python/python/'
examples = os.listdir(examples_path)

for example in examples:
        if example.endswith('.py'):
                f = open(examples_path+example,'r')
                content = str(f.readlines())
                for var in cv_vars.keys():
                        # this could be limited to built-in functions instead
                        val = cv_vars_counters.setdefault(var,0)
                        occurrences = len(re.findall(var,content))
                        cv_vars_counters[var] = val + occurrences
                f.close()

for key, value in sorted(cv_vars_counters.iteritems(), key=lambda (k,v): (v,k)):
    print "%s: %s" % (key, value)

#The output can be processed to be shared on a wiki page, e.g.
# python atoms_distribution.py | tail -50 | tac | sed "s|\(.*\): \(.*\)|* [http://opencv.willowgarage.com/documentation/python/search.html?q=\1 \1] \2|"
</pre>

See [[OpenCV Workshop]].