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Baseline detection: tweak closing amount.

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Andrey Golovizin 2014-08-26 22:54:09 +02:00
parent ef6369f10e
commit b23cba1cd8
1 changed files with 1 additions and 1 deletions
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2
pixelocr/page.py
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@ -161,7 +161,7 @@ class Line(PageObject):
"""Detect baseline height, relative to the top."""
skip = self.height // 2
bitmap = self.image.bitmap[skip:, :]
bitmap = grey_closing(bitmap, (0, 10), mode='constant')
bitmap = grey_closing(bitmap, (0, 4), mode='constant')
histogram = bitmap.sum(axis=1)
gradient = list(filters.correlate1d(histogram, [-1, 1], axis=0, mode='constant'))
gradient[0] = histogram[0]