Yes basically. The "scale" is the estimated size of the character x-height
in pixels, and your is too small. Your characters are set in a 3pt font on
a 300dpi page.
Tom
On Wednesday, October 3, 2012 8:23:18 AM UTC-7, JR wrote:
>
> What does "scale (6.9282) less than --minscale; skipping" really mean? is
> it the resolution of the image? DPI?
>
> I too have this issue. Curious to know what the issue is?
>
>
> On Friday, August 24, 2012 6:12:36 AM UTC-4, carolin wrote:
>>
>> Hi,
>>
>> we installed ocropus 0.6 on an virtual Ubuntu 12.04 maschine according to
>> the instructrions on your web page and got the following assertion on one
>> of our files when using the ocropus-recognize-book script:
>>
>> carolin@carolin-VirtualBox:~/ocrinput$ ocropus-recognize-book
>> testbild2.png -o output.html
>> book directory ./_book-003266
>> testbild2.png -> ./_book-003266/0001.png
>>
>> === preprocess
>>
>> # ocropus-nlbin ./_book-003266/????.png
>> === ./_book-003266/0001.png 1
>> flattening
>> estimating skew angle
>> estimating thresholds
>> rescaling
>> ./_book-003266/0001.png lo-hi (0.05 1.00) angle 0.0
>> writing
>>
>> === page segmentation
>>
>> # ocropus-gpageseg ./_book-003266/????.bin.png
>> ./_book-003266/0001.bin.png
>> ./_book-003266/0001.bin.png: scale (6.9282) less than --minscale; skipping
>>
>> === line recognition
>>
>> # ocropus-lattices ./_book-003266/????/??????.bin.png
>> Traceback (most recent call last):
>> File "/usr/local/bin/ocropus-lattices", line 56, in <module>
>> args.files = ocrolib.glob_all(args.files)
>> File "/usr/local/lib/python2.7/dist-packages/ocrolib/toplevel.py", line
>> 204, in argument_checks
>> result = f(*args,**kw)
>> File "/usr/local/lib/python2.7/dist-packages/ocrolib/common.py", line
>> 509, in glob_all
>> raise Exception("%s: expansion did not yield any files"%arg)
>> Exception: ./_book-003266/????/??????.bin.png: expansion did not yield
>> any files
>> Traceback (most recent call last):
>> File "/usr/local/bin/ocropus-recognize-book", line 79, in <module>
>> run(args.linerec,book+"/????/??????.bin.png",m=args.model)
>> File "/usr/local/bin/ocropus-recognize-book", line 57, in run
>> assert subprocess.call(args)==0
>> AssertionError
>>
>> We attached the sample file which we used. Is there any obvious thing
>> that we are doing wrong?
>>
>> Best,
>>
>> Carolin
>>
>
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