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comparison python/cvutils.py @ 410:91954c76d12c

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minor changes to error messages when loading libraries
author Nicolas Saunier <nicolas.saunier@polymtl.ca>
date Wed, 14 Aug 2013 14:23:50 -0400
parents 37c7b46f6e21
children 31604ef1cad4
comparison
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409:3c271a46b4d4 410:91954c76d12c
1 #! /usr/bin/env python 1 #! /usr/bin/env python
2 '''Image/Video utilities''' 2 '''Image/Video utilities'''
3 3
4 import Image, ImageDraw # PIL
5 try: 4 try:
6 import cv2 5 import cv2
7 opencvAvailable = True 6 opencvAvailable = True
8 except ImportError: 7 except ImportError:
9 print('OpenCV library could not be loaded') 8 print('OpenCV library could not be loaded (video replay functions will not be available)')
10 opencvAvailable = False 9 opencvAvailable = False
11 try: 10 try:
12 import skimage 11 import skimage
13 skimageAvailable = True 12 skimageAvailable = True
14 except ImportError: 13 except ImportError:
15 print('Scikit-image library could not be loaded') 14 print('Scikit-image library could not be loaded (HoG-based classification methods will not be available)')
16 skimageAvailable = False 15 skimageAvailable = False
17 16
18 from sys import stdout 17 from sys import stdout
19 18
20 import utils 19 import utils
37 def saveKey(key): 36 def saveKey(key):
38 return chr(key&255) == 's' 37 return chr(key&255) == 's'
39 38
40 def drawLines(filename, origins, destinations, w = 1, resultFilename='image.png'): 39 def drawLines(filename, origins, destinations, w = 1, resultFilename='image.png'):
41 '''Draws lines over the image ''' 40 '''Draws lines over the image '''
41 import Image, ImageDraw # PIL
42 42
43 img = Image.open(filename) 43 img = Image.open(filename)
44 44
45 draw = ImageDraw.Draw(img) 45 draw = ImageDraw.Draw(img)
46 #draw = aggdraw.Draw(img) 46 #draw = aggdraw.Draw(img)