def compute_segmentation(binary, scale, blackseps, maxseps, maxcolseps,
csminheight, sepwiden, usegauss, vscale, hscale,
threshold, quiet):
"""Given a binary image, compute a complete segmentation into
lines, computing both columns and text lines."""
binary = np.array(binary, 'B')
# start by removing horizontal black lines, which only
# interfere with the rest of the page segmentation
binary = remove_hlines(binary, scale)
# do the column finding
if not quiet: print_info("computing column separators")
colseps, binary = compute_colseps(binary, scale, blackseps, maxseps,
maxcolseps, csminheight, sepwiden)
# now compute the text line seeds
if not quiet: print_info("computing lines")
bottom, top, boxmap = compute_gradmaps(binary, scale, usegauss, vscale,
hscale)
seeds = compute_line_seeds(binary, bottom, top, colseps, scale, threshold,
vscale)
DSAVE("seeds", [bottom, top, boxmap])
# spread the text line seeds to all the remaining
# components
if not quiet: print_info("propagating labels")
llabels = morph.propagate_labels(boxmap, seeds, conflict=0)
if not quiet: print_info("spreading labels")
spread = morph.spread_labels(seeds, maxdist=scale)
llabels = np.where(llabels > 0, llabels, spread * binary)
segmentation = llabels * binary
return segmentation
def compute_segmentation(binary, scale):
"""Given a binary image, compute a complete segmentation into lines, computing both columns and
text lines.
"""
print("$$ compute_segmentation: %s %g" % (desc(binary), scale))
binary = np.array(binary, 'B')
# start by removing horizontal black lines, which only interfere with the rest of the page
# segmentation
binary = remove_hlines(binary, scale)
# do the column finding
print("computing column separators")
colseps, binary = compute_colseps(binary, scale)
# now compute the text line seeds
print("computing lines")
bottom, top, boxmap = compute_gradmaps(binary, scale)
seeds = compute_line_seeds(binary, bottom, top, colseps, scale)
print("seeds=%s" % desc(seeds))
DSAVE("seeds", [bottom, top, boxmap])
# spread the text line seeds to all the remaining components
print("propagating labels")
llabels = morph.propagate_labels(boxmap, seeds, conflict=0)
print("spreading labels: llabels=%s" % desc(llabels))
spread = morph.spread_labels(seeds, maxdist=scale)
llabels = np.where(llabels > 0, llabels, spread * binary)
segmentation = llabels * binary
print("$$ llabels: %s" % desc(llabels))
print("$$ segmentation: %s" % desc(segmentation))
return segmentation
def text_line_segmentation(binary, scale=None, gray=None, num_col = 1):
"""Given a binary image, compute a complete segmentation into
lines, computing both columns and text lines."""
binary = array(binary, 'B')
if scale is None:
scale = psegutils.estimate_scale(binary)
# do the column finding
if num_col > 1:
colseps, binary = compute_colseps(binary, scale)
else:
colseps = np.zeros(binary.shape)
# now compute the text line seeds
bottom, top, boxmap = compute_gradmaps(binary, scale)
seeds = compute_line_seeds(binary, bottom, top, colseps, scale)
# spread the text line seeds to all the remaining components
llabels = morph.propagate_labels(boxmap, seeds, conflict=0)
spread = morph.spread_labels(seeds, maxdist=scale)
llabels = where(llabels > 0, llabels, spread * binary)
segmentation = llabels * binary
lines = psegutils.compute_lines(segmentation, scale, 0.8)
line_ims = []
for l in lines:
if gray is None:
binline = psegutils.extract_masked(1-binary, l, pad=0)
else:
binline = psegutils.extract_masked(gray, l, pad=0)
binline = pad_by(binline, 10, invert=False)
line_ims.append(binline)
return line_ims, lines
def compute_segmentation(binary, scale):
"""Given a binary image, compute a complete segmentation into
lines, computing both columns and text lines."""
binary = array(binary, 'B')
# start by removing horizontal black lines, which only
# interfere with the rest of the page segmentation
binary = remove_hlines(binary, scale)
# do the column finding
if not args.quiet:
print("computing column separators")
colseps, binary = compute_colseps(binary, scale)
# now compute the text line seeds
if not args.quiet:
print("computing lines")
bottom, top, boxmap = compute_gradmaps(binary, scale)
seeds = compute_line_seeds(binary, bottom, top, colseps, scale)
####imsave('/home/gupta/Documents/combinedseeds.png', [bottom,top,boxmap])
# DSAVE("seeds",[bottom,top,boxmap])
# spread the text line seeds to all the remaining
# components
if not args.quiet:
print("propagating labels")
llabels = morph.propagate_labels(boxmap, seeds, conflict=0)
if not args.quiet:
print("spreading labels")
spread = morph.spread_labels(seeds, maxdist=scale)
llabels = where(llabels > 0, llabels, spread * binary)
segmentation = llabels * binary
return segmentation
def compute_segmentation(self, binary, scale):
"""Given a binary image, compute a complete segmentation into
lines, computing both columns and text lines."""
binary = np.array(binary, 'B')
# start by removing horizontal black lines, which only
# interfere with the rest of the page segmentation
binary = self.remove_hlines(binary, scale)
# do the column finding
log.debug("computing column separators")
colseps, binary = self.compute_colseps(binary, scale)
# now compute the text line seeds
log.debug("computing lines")
bottom, top, boxmap = self.compute_gradmaps(binary, scale)
log.debug("bottom=%s top=%s boxmap=%s", bottom, top, boxmap)
seeds = self.compute_line_seeds(binary, bottom, top, colseps, scale)
# spread the text line seeds to all the remaining
# components
log.debug("propagating labels")
llabels = morph.propagate_labels(boxmap, seeds, conflict=0)
log.debug("spreading labels")
spread = morph.spread_labels(seeds, maxdist=scale)
llabels = np.where(llabels > 0, llabels, spread * binary)
segmentation = llabels * binary
return segmentation
def calc(self, objects, scale):
if self.binpage is None:
return
tt = time()
bottom, top, boxmap = compute_gradmaps(self.binpage, scale)
# DSHOW('hihi', [0.5*bottom+0.5*top,self.binpage, boxmap])
seeds0 = compute_line_seeds(self.binpage, bottom, top, scale)
seeds, _ = morph.label(seeds0)
llabels = morph.propagate_labels(boxmap, seeds, conflict=0)
spread = spread_labels(seeds, maxdist=scale)
llabels = where(llabels > 0, llabels, spread * self.binpage)
segmentation = llabels * self.binpage
self.binpage = ocrolib.remove_noise(self.binpage, args.noise)
lines = psegutils.compute_lines(segmentation, scale)
binpage_reversed = 1 - self.binpage
# print 'pre line ', time() - tt
tt = time()
self.lines = []
for i, l in enumerate(lines):
tt = time()
binline = psegutils.extract_masked(
binpage_reversed, l, pad=args.pad,
expand=args.expand) # black text
binline = (1 - binline)
le = lineest.CenterNormalizer(binline.shape[0]) # white text
binline = binline.astype(float)
le.measure(binline)
binline = le.normalize(binline)
binline = where(binline > 0.5, 0, 1) # black text
# print 'line time ', time()-tt
print '-----------------------'
pilimg = Image.fromarray((binline * 255).astype(uint8))
pred_legacy = pytesseract.image_to_string(pilimg,
lang='eng',
config='--oem 0 --psm 7')
print '00', pred_legacy
pred_lstm = pytesseract.image_to_string(pilimg,
lang='eng',
config='--oem 1 --psm 7')
print '11', pred_lstm
# ASHOW('line',binline, scale=2.0)
## pred_both = pytesseract.image_to_string(pilimg,lang='vie', config='--oem 2 --psm 7')
## print '22', pred_both
result = psegutils.record(bounds=l.bounds,
text1=pred_legacy,
text2=pred_lstm,
img=binline)
self.lines.append(result)
def compute_segmentation(binary,scale):
"""Given a binary image, compute a complete segmentation into
lines, computing both columns and text lines."""
binary = array(binary,'B')
# start by removing horizontal black lines, which only
# interfere with the rest of the page segmentation
binary = remove_hlines(binary,scale)
# do the column finding
colseps,binary = compute_colseps(binary,scale)
# now compute the text line seeds
bottom,top,boxmap = compute_gradmaps(binary,scale)
seeds = compute_line_seeds(binary,bottom,top,colseps,scale)
#DSAVE("seeds",[bottom,top,boxmap])
# spread the text line seeds to all the remaining
# components
llabels = morph.propagate_labels(boxmap,seeds,conflict=0)
spread = morph.spread_labels(seeds,maxdist=scale)
llabels = where(llabels>0,llabels,spread*binary)
segmentation = llabels*binary
return segmentation
def printResult(self, outputfile):
# Some pre-process
# print 'text area before'
# cv2.imshow('patch', self.patch)
# cv2.waitKey(-1)
if self.name == 'CMND cu - 9 so':
k = 0.45
else:
k = 0.33
patch = sharpen(self.patch)
binary = sauvola(patch,
w=int(self.template.shape[1] / 24.5 * 2),
k=k,
scaledown=0.5,
reverse=True)
binary = cv2.bitwise_and(binary, binary, mask=self.patch_mask)
# print 'text area after'
# cv2.imshow('patch', binary*255)
# cv2.waitKey(-1)
dotremoved = binary
scale = self.scale
# Line extraction copied from Ocropus source code
bottom, top, boxmap = compute_gradmaps(dotremoved, scale)
seeds0 = compute_line_seeds(dotremoved, bottom, top, scale)
seeds, _ = morph.label(seeds0)
llabels = morph.propagate_labels(boxmap, seeds, conflict=0)
spread = spread_labels(seeds, maxdist=scale)
llabels = where(llabels > 0, llabels, spread * dotremoved)
segmentation = llabels * dotremoved
dotremoved = ocrolib.remove_noise(dotremoved, 8)
lines = psegutils.compute_lines(segmentation, scale / 2)
binpage_reversed = 1 - dotremoved
self.lines = []
readrs = dict.fromkeys(self.linepos1.keys(), u'')
lines = sorted(lines, key=lambda x: x.bounds[1].start)
for i, l in enumerate(lines):
# Line extraction copied from Ocropus source code
binline = psegutils.extract_masked(binpage_reversed,
l,
pad=int(scale / 2),
expand=0) # black text
binline = (1 - binline)
le = lineest.CenterNormalizer(binline.shape[0]) # white text
binline = binline.astype(float)
le.measure(binline)
binline = le.normalize(binline)
# print 'normalized'
# cv2.imshow('line', binline)
# cv2.waitKey(-1)
binline = cv2.resize(binline, None, fx=2.0, fy=2.0)
# print 'resized'
# cv2.imshow('line', binline)
# cv2.waitKey(-1)
binline = where(binline > 0.5, uint8(0), uint8(255)) # black text
# print 'black text'
# cv2.imshow('line', binline)
# cv2.waitKey(-1)
# pilimg = Image.fromarray(binline)
pos = l.bounds[0].stop
left = (l.bounds[1].start < self.template.shape[1] / 2)
# Prediction using Tesseract 4.0
if pos > self.linepos1['idNumber'][0] and pos < self.linepos1[
'idNumber'][1]: #ID, all numbers
pred = ocr(
binline,
config=
'--oem 0 --psm 7 -c tessedit_char_whitelist=0123456789')
readrs['idNumber'] += pred + u' '
elif pos > self.linepos1['dateOfBirth'][0] and pos < self.linepos1[
'dateOfBirth'][1]: # DOB, number, - , /
pred = ocr(
binline,
config=
'--oem 1 --psm 7 -c tessedit_char_whitelist=0123456789-/')
readrs['dateOfBirth'] += pred + u' '
elif left and pos > self.linepos1['Gender'][
0] and pos < self.linepos1['Gender'][1]:
pred = ocr(binline, config='--oem 1 --psm 7 -l vie')
readrs['Gender'] += pred + u' '
elif (not left) and pos > self.linepos1['Dantoc'][
0] and pos < self.linepos1['Dantoc'][1]:
pred = ocr(binline, config='--oem 1 --psm 7 -l vie')
readrs['Dantoc'] += pred + u' '
elif pos > self.linepos1['NguyenQuan'][0] and pos < self.linepos1[
'NguyenQuan'][1]:
pred = ocr(binline, config='--oem 1 --psm 7 -l vie')
readrs['NguyenQuan'] += pred + u' '
elif pos > self.linepos1['fullName'][0] and pos < self.linepos1[
'fullName'][1]:
pred = ocr(binline, config='--oem 1 --psm 7 -l vie')
readrs['fullName'] += pred + u' '
# else:
# pred = ocr(binline, config='--oem 1 --psm 7 -l vie')
# print 'unknown ', unicode2ascii(pred), 'y:', l.bounds[0], 'x:', l.bounds[1]
for k in readrs:
readrs[k] = (readrs[k].replace(u'²',
u'2').replace(u'º', u'o').replace(
u'»', u'-')).strip()
if len(readrs[k]) == 0:
readrs[k] = None
if self.name == 'CMND moi - 12 so':
readrs['type'] = 'CMND Mới - 12 Số'
elif self.name == 'Can Cuoc Cong Dan':
readrs['type'] = 'Căn Cước Công Dân'
elif self.name == 'CMND cu - 9 so':
readrs['type'] = 'CMND Cũ - 9 Số'
readrs['NgayHetHan'] = None
outputfile.write(json.dumps(readrs))
