tesseract multiply .png files to singular .txt file

[Lako]

Hi,

Apologies for the beginner question, unfortunately I am fairly new to Tesseract, and also coding. I have a fairly huge amount of .png files (one line, upperCase code) and would preferably want to create a singular text file where they are seperated with a semicolon, or even a space to get the entire list.  

I have successfully managed to convert a single .png to .txt but can not get a bulk to work. I have also looked in other posts, but often I guess it's explained above my degree of understanding. 

Many thanks for any help! 

[ShreeDevi Kumar]

Please inform what environment you are running in, Linux, windows, etc.

Basically, you need to to setup a loop which will process all .PNG files and concatenate the OCR results.

- excuse the brevity, sent from mobile

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[ShreeDevi Kumar]

Gui front-end for tesseract such as Vietocr and gimagereader will also allow for batch processing of multiple files.

- excuse the brevity, sent from mobile

On 16-Mar-2017 9:13 PM, "Lako" <laurent...@gmail.com> wrote:

[Greg Dunkel]

For a large number of files, it is better to do it a chunk at a time,
catch any errors , then concatenate the chunk.

On Thu, Mar 16, 2017 at 11:52 AM, ShreeDevi Kumar <shree...@gmail.com> wrote:
> Gui front-end for tesseract such as Vietocr and gimagereader will also allow
> for batch processing of multiple files.
>
> - excuse the brevity, sent from mobile
>
> On 16-Mar-2017 9:13 PM, "Lako" <laurent...@gmail.com> wrote:
>>
>> Hi,
>>
>> Apologies for the beginner question, unfortunately I am fairly new to
>> Tesseract, and also coding. I have a fairly huge amount of .png files (one
>> line, upperCase code) and would preferably want to create a singular text
>> file where they are seperated with a semicolon, or even a space to get the
>> entire list.
>>
>> I have successfully managed to convert a single .png to .txt but can not
>> get a bulk to work. I have also looked in other posts, but often I guess
>> it's explained above my degree of understanding.
>>
>> Many thanks for any help!
>>
>>
>> --
>> You received this message because you are subscribed to the Google Groups
>> "tesseract-ocr" group.
>> To unsubscribe from this group and stop receiving emails from it, send an

>> email to tesseract-oc...@googlegroups.com.

>> To post to this group, send email to tesser...@googlegroups.com.
>> Visit this group at https://groups.google.com/group/tesseract-ocr.
>> To view this discussion on the web visit
>> https://groups.google.com/d/msgid/tesseract-ocr/7c05d9c3-9da9-435b-8d21-40892a58034b%40googlegroups.com.
>> For more options, visit https://groups.google.com/d/optout.
>

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>
> For more options, visit https://groups.google.com/d/optout.

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/greg

[Lako]

Many thanks for your reply I am running on a Mac! I will test the options listed below. Thank you again for helping me out on this issue! 

[ShreeDevi Kumar]

On a unix like environment, you can setup a batch file similar to this:

#!/bin/bash

export TESSDATA_PREFIX=/mnt/c/Users/User/shree

touch combined.txt

img_files=$(ls *.png)

for img_file in ${img_files}; do

  tesseract ${img_file} ${img_file%.*}   --oem 1  -l eng 

  cat ${img_file%.*}.txt >> combined.txt

done