tessaract fails to recognize perfect images

[no reply]

i have very clear image (85.png) with two digits which tessaract fails to recognize

all other images are recognized without problems, i.e. 00.png 

c:\Program Files (x86)\Tesseract-OCR>tesseract.exe c:\Temp\85.png stdout

c:\Program Files (x86)\Tesseract-OCR>tesseract.exe c:\Temp\00.png stdout

00

c:\Program Files (x86)\Tesseract-OCR>tesseract.exe  --version

tesseract 3.05.01

 leptonica-1.74.1

  libgif 4.1.6(?) : libjpeg 8d (libjpeg-turbo 1.5.0) : libpng 1.6.20 : libtiff 4.0.6 : zlib 1.2.8 : libwebp 0.4.3 : libopenjp2 2.1.0

is it a bug?

[fakabbir amin]

Hi, Many times even if the image looks quite good in visual it may bbe something that tesseract cann't handle at pixel level.

Look at the boxes tesseract creates for more details.

Command : tesseract ImageName OutputHtmlName hocr

[Dan9er]

The border padding of the images is too small. Try increasing the padding.