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Limit maximal optical correction to prevent splitting glyph pairs like Го.

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This commit is contained in:
Andrey Golovizin 2014-08-26 18:23:28 +02:00
parent 8bc5f06772
commit 03a481d3a2
1 changed files with 4 additions and 3 deletions
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7
pixelocr/page.py
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@ -85,7 +85,7 @@ class PageObject(object):
return self.image.fits(left, top, right, bottom)
def _optical_correction(self, other, T=False):
def _optical_correction(self, other, max_correction=1000, T=False):
image1 = self.image.T if T else self.image
image2 = other.image.T if T else other.image
base = min(image1.top, image2.top)
@ -101,7 +101,8 @@ class PageObject(object):
margin1[image1.top - base: image1.bottom - base] = np.fliplr(bitmap1).argmax(axis=1)
margin2[image2.top - base: image2.bottom - base] = bitmap2.argmax(axis=1)
margins = margin1 + margin2
return margins.min()
correction = margins.min()
return min(correction, max_correction)
class Page(PageObject):
@ -241,7 +242,7 @@ class Glyph(PageObject):
def optical_distance(self, other):
distance = other.left - self.right
return distance + self._optical_correction(other)
return distance + self._optical_correction(other, max_correction=3)
def detect_diacritic(self, glyph):
"""Check if the given glyph can be our diacritic and return a numeric score."""