10:53 a.m.
Is there an F8 application that will convert a .png copy of a text list
to a text file?
Bob
11:01 a.m.
On Sat, 2008-06-28 at 11:53 -0400, Bob Goodwin USA wrote:
Is there an F8 application that will convert a .png copy of a text
list
to a text file?
----
png is a picture file and there is no text.
If you want OCR (optical character recognition - software that scans a
picture for recognizable text and saves the recognized text to a file),
I would suggest tesseract.
Craig
11:05 a.m.
Craig White wrote:
On Sat, 2008-06-28 at 11:53 -0400, Bob Goodwin USA wrote:
> Is there an F8 application that will convert a .png copy of a text list
> to a text file?
>
----
png is a picture file and there is no text.
If you want OCR (optical character recognition - software that scans a
picture for recognizable text and saves the recognized text to a file),
I would suggest tesseract.
Craig
Thanks, I will look at that.
Bob
11:08 a.m.
On Sat, Jun 28, 2008 at 12:05:22PM -0400, Bob Goodwin USA wrote:
Craig White wrote:
>On Sat, 2008-06-28 at 11:53 -0400, Bob Goodwin USA wrote:
>
>>Is there an F8 application that will convert a .png copy of a text list
>>to a text file?
>>
>----
>png is a picture file and there is no text.
>
>If you want OCR (optical character recognition - software that scans a
>picture for recognizable text and saves the recognized text to a file),
>I would suggest tesseract.
>
>Craig
>
>
Thanks, I will look at that.
I believe that Tesseract only understands TIF files, so you will need
to convert the png before you can OCR them.
--
---- Fred Smith -- fredex(a)fcshome.stoneham.ma.us ------------------------ ----
Do you not know? Have you not heard?
The LORD is the everlasting God, the Creator of the ends of the earth.
He will not grow tired or weary, and his understanding no one can fathom.
----------------------------- Isaiah 40:28 (niv) -----------------------------
11:32 a.m.
fred smith wrote:
On Sat, Jun 28, 2008 at 12:05:22PM -0400, Bob Goodwin USA wrote:
> Craig White wrote:
>
>> On Sat, 2008-06-28 at 11:53 -0400, Bob Goodwin USA wrote:
>>
>>
>>> Is there an F8 application that will convert a .png copy of a text list
>>> to a text file?
>>>
>>>
>> ----
>> png is a picture file and there is no text.
>>
>> If you want OCR (optical character recognition - software that scans a
>> picture for recognizable text and saves the recognized text to a file),
>> I would suggest tesseract.
>>
>> Craig
>>
>>
>>
> Thanks, I will look at that.
>
I believe that Tesseract only understands TIF files, so you will need
to convert the png before you can OCR them.
Yes, I discovered that requirement but now I am stumped by -
The command line is:
tesseract <image.tif> <output> [-l langid]
I thought "-l enUS" might work but no go there.
There's no man page, only a README and that doesn't tell me about the
langid other than it wants it. Without it I get very strange looking text.
Bob
10:26 a.m.
On Sat, Jun 28, 2008 at 5:32 PM, Bob Goodwin USA
<bobgoodwin(a)wildblue.net> wrote:
fred smith wrote:
>>>> Is there an F8 application that will convert a .png copy of a text list
>>>> to a text file?
>>>
>>> ----
>>> png is a picture file and there is no text.
>>>
>>> If you want OCR (optical character recognition - software that scans a
>>> picture for recognizable text and saves the recognized text to a file),
>>> I would suggest tesseract.
>>
>> Thanks, I will look at that.
>>
>
> I believe that Tesseract only understands TIF files, so you will need
> to convert the png before you can OCR them.
>
>
Yes, I discovered that requirement but now I am stumped by -
The command line is:
tesseract <image.tif> <output> [-l langid]
I thought "-l enUS" might work but no go there.
There's no man page, only a README and that doesn't tell me about the langid
other than it wants it. Without it I get very strange looking text.
Unfortunately, the OCR programs working in Linux are not very good
yet. In case you have access to Acrobat Professional, use it instead;
the results are usually excellent.
Paul
10:43 a.m.
On Mon, 2008-06-30 at 16:26 +0100, Paul Smith wrote:
On Sat, Jun 28, 2008 at 5:32 PM, Bob Goodwin USA
<bobgoodwin(a)wildblue.net> wrote:
> fred smith wrote:
>>>>> Is there an F8 application that will convert a .png copy of a text
list
>>>>> to a text file?
>>>>
>>>> ----
>>>> png is a picture file and there is no text.
>>>>
>>>> If you want OCR (optical character recognition - software that scans a
>>>> picture for recognizable text and saves the recognized text to a file),
>>>> I would suggest tesseract.
>>>
>>> Thanks, I will look at that.
>>>
>>
>> I believe that Tesseract only understands TIF files, so you will need
>> to convert the png before you can OCR them.
>>
>>
>
> Yes, I discovered that requirement but now I am stumped by -
>
> The command line is:
> tesseract <image.tif> <output> [-l langid]
>
> I thought "-l enUS" might work but no go there.
>
> There's no man page, only a README and that doesn't tell me about the
langid
> other than it wants it. Without it I get very strange looking text.
Unfortunately, the OCR programs working in Linux are not very good
yet. In case you have access to Acrobat Professional, use it instead;
the results are usually excellent.
----
I've never used Acrobat Professional for OCR but I have gotten excellent
results from tesseract on Linux.
OP should check out...
http://www.groklaw.net/article.php?story=20061210115516438&query=tess...
http://www.linuxjournal.com/article/9676
Craig
11:01 a.m.
On Mon, Jun 30, 2008 at 4:43 PM, Craig White <craigwhite(a)azapple.com> wrote:
> >>>>> Is there an F8 application that will convert
a .png copy of a text list
> >>>>> to a text file?
> >>>>
> >>>> ----
> >>>> png is a picture file and there is no text.
> >>>>
> >>>> If you want OCR (optical character recognition - software that scans
a
> >>>> picture for recognizable text and saves the recognized text to a
file),
> >>>> I would suggest tesseract.
> >>>
> >>> Thanks, I will look at that.
> >>>
> >>
> >> I believe that Tesseract only understands TIF files, so you will need
> >> to convert the png before you can OCR them.
> >>
> >>
> >
> > Yes, I discovered that requirement but now I am stumped by -
> >
> > The command line is:
> > tesseract <image.tif> <output> [-l langid]
> >
> > I thought "-l enUS" might work but no go there.
> >
> > There's no man page, only a README and that doesn't tell me about the
langid
> > other than it wants it. Without it I get very strange looking text.
>
> Unfortunately, the OCR programs working in Linux are not very good
> yet. In case you have access to Acrobat Professional, use it instead;
> the results are usually excellent.
----
I've never used Acrobat Professional for OCR but I have gotten excellent
results from tesseract on Linux.
OP should check out...
http://www.groklaw.net/article.php?story=20061210115516438&query=tess...
http://www.linuxjournal.com/article/9676
I have used both (Acrobat Professional and Tesseract) on the same
documents. Regarding results, Acrobat Professional beats Tesseract by
far.
Paul
1:40 p.m.
Craig White wrote:
On Mon, 2008-06-30 at 16:26 +0100, Paul Smith wrote:
> On Sat, Jun 28, 2008 at 5:32 PM, Bob Goodwin USA
> <bobgoodwin(a)wildblue.net> wrote:
>> fred smith wrote:
>>>>>> Is there an F8 application that will convert a .png copy of a
text list
>>>>>> to a text file?
>>>>> ----
>>>>> png is a picture file and there is no text.
>>>>>
>>>>> If you want OCR (optical character recognition - software that scans
a
>>>>> picture for recognizable text and saves the recognized text to a
file),
>>>>> I would suggest tesseract.
>>>> Thanks, I will look at that.
>>>>
>>> I believe that Tesseract only understands TIF files, so you will need
>>> to convert the png before you can OCR them.
>>>
>>>
>> Yes, I discovered that requirement but now I am stumped by -
>>
>> The command line is:
>> tesseract <image.tif> <output> [-l langid]
>>
>> I thought "-l enUS" might work but no go there.
>>
>> There's no man page, only a README and that doesn't tell me about the
langid
>> other than it wants it. Without it I get very strange looking text.
> Unfortunately, the OCR programs working in Linux are not very good
> yet. In case you have access to Acrobat Professional, use it instead;
> the results are usually excellent.
----
I've never used Acrobat Professional for OCR but I have gotten excellent
results from tesseract on Linux.
OP should check out...
http://www.groklaw.net/article.php?story=20061210115516438&query=tess...
http://www.linuxjournal.com/article/9676
I do some similar thing, non-OCR but working with scanned text, and I
use the netpbm package. First I convert the original format to a
greyscale image (aka pgm), then convert that to a bilevel image (aka
black and white) with "pgmtopbm -thr" and setting the value of the
transition as needed (-val option). Those images are then easily
converted to tif or whatever you need, in my case jbig images for bext
compression.
--
Bill Davidsen <davidsen(a)tmr.com>
"We have more to fear from the bungling of the incompetent than from
the machinations of the wicked." - from Slashdot
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