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Avoid unnecessary conversions in Image.bitmap to make it faster.

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This commit is contained in:
Andrey Golovizin 2014-08-25 16:43:53 +02:00
parent 00508d1919
commit e55b66ddd6
1 changed files with 1 additions and 4 deletions
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5
pixelocr/image.py
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@ -19,7 +19,6 @@ from io import BytesIO
import numpy as np import numpy as np
from skimage.io import imread, imsave from skimage.io import imread, imsave
from skimage.color import rgb2gray
from .utils import cached_property, pairwise from .utils import cached_property, pairwise
@ -156,9 +155,7 @@ class Image(object):
0 = white (blank) pixel 0 = white (blank) pixel
1 = black (glyph) pixel 1 = black (glyph) pixel
""" """
return (self.data != 255).any(axis=2)
grayscale = rgb2gray(self.data)
return (grayscale < 1).astype('b')
@cached_property @cached_property
def isspace(self): def isspace(self):