WeOCR service : general help
How to use this service
- Make a document image, using an image scanner,
a screen capture software, etc.
Typical scanning resolution is from 200dpi to 400dpi.
- Clip a text block in the scanned image.
You may skip this step, if an automatic layout analysis is supported
on the server.
- Convert the image into a binary image if possible.
A clear B/W image is preferable.
You should skip this step if the OCR engine used on this server
has a special preprocessor for color and/or grayscale images.
- Save the image in one of BMP, JPEG, PBM/PGM/PPM formats.
- Select the image file on the WeOCR server's top page,
and press "Recognize" button.
You will see the results of character recognition on the
Web browser's screen.
The processing time varies depending on the load and speed
of the server.
- If you cannot upload your files using MS-Windows & Internet Explorer,
please try to move the files to another directory that has a simple path name,
and upload them from there.
For example, non-ascii path names might cause some troubles.
- Although JPEG (JFIF) files are faster in data transmission,
OCR performance would deteriorate due to the lossy image compression.
- If you are disappointed at poor performance of the OCR results,
try to enlarge the document images.
Typical text size on computer screens is too small in many cases.
- Many OCR engines cannot handle white letters on a black background
correctly. If you think something is wrong with the output,
try to invert the image.
WeOCR server's top