Segmentation fault on "Empty page!!" errors about python-tesseract HOT 12 CLOSED

either memory leak or tesseract failed to parse the image.

Very likely be memory leak because you stated that retrying will just work.

If so, send me the source code and/or the images that caused the problem

Apparently tesseract failed to parse the image.

While saving some images for testing I found out that the script was always 
failing on the same images. Images are from screen-shots so they seem to differ 
slightly every time even though the script crops them exactly the same every 
time.

I raised the contrast and now all the images pass. Still, if tesseract fails to 
parse an image it exits with segmentation fault which isn't too nice.

I attached one image that fails.

as stated in Example 3 on the frontpage
#### you may need to thicken the border in order to make tesseract feel happy 
to ocr your image #####

Otherwise, you may need to use

try:
  doSomething()
except: 
  pass
or

try:
  doSomething()
except Exception: 
  pass

Thanks for your help!

I have made some changes in the codes. Hope it will help prevent the 
Segmentation fault from happening.


https://python-tesseract.googlecode.com/files/python-tesseract_0.8-1.7_amd64.deb

Still segfaults if tesseract cannot find anything from the image, same 
backtrace. It is not bothering me too much any more since I found out that 
using:

api.SetPageSegMode(tesseract.PSM_SINGLE_WORD)

instead of tesseract.PSM_AUTO greatly improves the detection rate. It can even 
find the '0.25' in attached image even though the contrast is really poor.

BTW, 0.8-1.7 added opencv-2.4 as a dependency which is only available from 
PPAs/experimental for Ubuntu/Debian.

Any news there? This is really annoying as long as it crashes python 
interpreter. Any ideas how to stop this?

I continue to have this segmentation fault occur as well, is this project dead 
or is there some life still here?

can you send me a sample code that could trigger the crash. Will look into it.

Try this version pls
https://drive.google.com/file/d/0BxR8J6QWLdsVSVplcl8xQWZIUjg/edit?usp=sharing

The problem should be fixed .

Do you have any downloads for Windows with Python 2.7? I am having the same 
error.