Error during using tesseract-ocr

[Ivan Mushketik]

Hello.

I tried to run tesseract-ocr v 3.02 with the following params:
tesseract phototest.tif output

but received:
Tesseract Open Source OCR Engine v3.02 with Leptonica
Error in findTiffCompression: function not present
Error in pixReadStreamTiff: function not present
Error in pixReadStream: tiff: no pix returned
Error in pixRead: pix not read
Unsupported image type.

I also tried to use png file, but received similar output.

Leptonica and libtiff are libraries installed.
How can I fix this problem?

I am using Ubuntu 11.10

Thank you in advance.

[Esteban Bordón]

Hi.

I think that you have to change the extension of the image file. It
have to be .tiff instead .tif.

cheers,
Esteban.

2012/3/6 Ivan Mushketik <ivan.mu...@gmail.com>:

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[Zdenko Podobný]

This is leptonica error message that indicate problem with image support.
If you have version from today, please send output of:
tesseract -v

Zdenko

[Ivan Mushketik]

Hello.

I tried to change extension of the file, but it did not help.

2012/3/6 Esteban Bordón <ebo...@gmail.com>

[Ivan Mushketik]

Here is my output:
$ tesseract -v
tesseract 3.02
 leptonica-1.68

2012/3/6 Zdenko Podobný <zde...@gmail.com>

[zdenko podobny]

On Tue, Mar 6, 2012 at 6:20 PM, Ivan Mushketik <ivan.mu...@gmail.com> wrote:

Here is my output:
$ tesseract -v
tesseract 3.02
 leptonica-1.68

This means your leptonica have no support for image files. For good installation of leptonica you would see something like this:

tesseract 3.02
 leptonica-1.68 (Mar 14 2011, 10:43:03) [MSC v.1500 LIB Release 32 bit]

  libgif 4.1.6 : libjpeg 8c : libpng 1.4.3 : libtiff 3.9.4 : zlib 1.2.5

You must re-install leptonica (and probably before that you have to install devel packages of image libraries)

[Ivan Mushketik]

Thank you very much.
I've installed devel packages and used this tutorial:
http://ubuntuforums.org/showthread.php?t=1647350

to install tesseract.

2012/3/7 zdenko podobny <zde...@gmail.com>

[Murat Sabuncu]

I have the same problem although everything seem to be ok.

Tesseract -v output is :

tesseract 3.02

 leptonica-1.68 (Mar 14 2011, 10:43:03) [MSC v.1500 LIB Release 32 bit]

  libgif 4.1.6 : libjpeg 8c : libpng 1.4.3 : libtiff 3.9.4 : zlib 1.2.5

What might be the reason?

7 Mart 2012 Çarşamba 20:09:51 UTC+2 tarihinde Ivan Mushketik yazdı:

[zdenko podobny]

Please provide testing image that cause error.

Zdenko

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[Murat Sabuncu]

I found the problem is the tif image. The following conversion solves the problem

convert test.tif new_test.pbm 
convert new_test.pbm new_test.tif 

It is described here : https://groups.google.com/forum/#!topic/tesseract-ocr/JDTwntGAwJI

Thanks

Murat

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[Nalin Linux]

I solved this via compiling leptonica(1.73) with libtiff5-dev 

sudo apt-get install libtiff5-dev

cd leptonica-1.73

./configure --with-libtiff

make

sudo make install