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Fix check for nrm.png files in ocropus-pageseg --gray #287

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merged 1 commit into from Feb 19, 2018
Merged

Fix check for nrm.png files in ocropus-pageseg --gray #287

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7 changes: 5 additions & 2 deletions ocropus-gpageseg
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Expand Up @@ -85,7 +85,7 @@ group_column.add_argument('--csminaspect',type=float,default=1.1,
# output parameters
group_output = parser.add_argument_group('output parameters')
group_output.add_argument('--gray',action='store_true',
help='output grayscale lines as well, default: %(default)s')
help='output grayscale lines as well, which are extracted from the grayscale version of the pages, default: %(default)s')
group_output.add_argument('-p','--pad',type=int,default=3,
help='padding for extracted lines, default: %(default)s')
group_output.add_argument('-e','--expand',type=int,default=3,
Expand Down Expand Up @@ -395,7 +395,10 @@ def process1(job):
if args.gray:
if os.path.exists(base+".nrm.png"):
gray = ocrolib.read_image_gray(base+".nrm.png")
checktype(gray,GRAYSCALE)
checktype(gray,GRAYSCALE)
else:
print_error("Grayscale version %s.nrm.png not found. Use ocropus-nlbin for creating normalized grayscale version of the pages as well." % base)
return

binary = 1-binary # invert

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