def testStrings(self):
for s in ["woolly", "mammoth"]:
image = fgen.cairo_render_gray(s, fontname="Georgia", size=32)
image = 1.0 * (image < amax(image) / 2)
fst = self.linerec.recognizeLine(image)
result = fst.bestpath()
assert self.sequal(result, s), "result = %s" % result
def testAlignment(self):
s = "woolly"
image = fgen.cairo_render_gray(s, fontname="Georgia", size=32)
image = 1.0 * (image < amax(image) / 2)
lattice, rseg = self.linerec.recognizeLineSeg(image)
lmodel = fstutils.make_line_fst([s])
result = ocrolib.compute_alignment(lattice, rseg, lmodel)
assert result.output == s
assert "".join(result.output_l) == s
def testAlignmentWithLigatures(self):
s = "woolly"
gt = u"w_oo_lly"
image = fgen.cairo_render_gray(s, fontname="Georgia", size=32)
image = 1.0 * (image < amax(image) / 2)
lattice, rseg = self.linerec.recognizeLineSeg(image)
lmodel = fstutils.make_line_fst([gt])
result = ocrolib.compute_alignment(lattice, rseg, lmodel)
assert "".join(result.output_l) == s
assert result.output_t == gt
assert result.output_l == [u'w', u'oo', u'l', u'l', u'y']
def charimage(self, c):
image = fgen.cairo_render_gray(c, fontname="Georgia", size=32)
image = fgen.gauss_degrade(image)
return image
def testChars(self):
for c in ["A", "N", "n"]:
image = fgen.cairo_render_gray(c, fontname="Georgia", size=32)
r = ocrolib.ocosts(self.model.coutputs(image))
assert r[0][0] == c, r[:3]