OpenCVとPythonと私 vol.3
#!/usr/bin/python
import cv
from opencv import highgui
import sys
import getopt
filename = None
debug = False
def main () :
global filename
global debug
try :
opts, args = getopt.getopt( sys.argv[1:], "hd", ["help","debug"] )
except getopt.GetoptError, err :
print str( err )
usage()
sys.exit(2)
if len( args ) != 0 :
filename = args[0]
else :
usage()
sys.exit(0)
for o, a in opts :
if o in ( "-h", "--help" ) :
usage()
sys.exit(0)
elif o in ( "-d", "--debug" ) :
debug = True
else :
assert False, "unhandled option"
def debugout ( str ) :
if debug == True :
print str
def usage() :
print "Usage: showImage.py [OPTION] FILE"
print " "
print " -h, --help Display this message."
print " -d, --debug Output debug log."
if __name__ == "__main__" :
main()
debugout( "Input file name is " + filename )
before = cv.LoadImage( filename )
debugout( "width : " + str( before.width ) )
debugout( "height: " + str( before.height ) )
if before.width % 2 != 0 or before.height % 2 != 0 :
assert False, "input file cannot do with PyrDown"
cv.NamedWindow( "Before", 1 )
cv.MoveWindow( "Before", 100, 100 )
cv.NamedWindow( "After", 1 )
cv.MoveWindow( "After", 100+before.width, 100 )
size = ( before.width/2, before.height/2 )
after = cv.CreateImage( size , \
before.depth, before.nChannels )
cv.PyrDown( before, after )
cv.ShowImage( "Before", before )
cv.ShowImage( "After" , after )
print "Hit any key."
cv.WaitKey(0)
cv.DestroyWindow( "Before" )
cv.DestroyWindow( "After" )