Tuesday, January 27, 2009

Modified Files in OCRopus-0.3.1

[dir]ocr-bpnat:
grouping.cc
make-garbage.cc

[dir]colib[path:/user/local/include/colib]:
ocrinterfaces.h

[dir]ocroscript:
ocr.pkg

[dir]ocr-utils:
seg-skel.cc
seg-cuts.cc
seg-ccs.cc
ocr-utils.cc
ocr-utils.h

[dir]ocr-samples:
ocr-cseg-ccs.cc
ocr-cseg-projection.cc

Monday, December 1, 2008

BanglaOCR V 0.6 | Source Code Released

This is the announcement about the release of the source code of BanglaOCR V 0.6.

Feedback:
Please send feedback on the following email address: bangla.ocr@gmail.com

Test Images:
A set of test images are also available in the same site where the OCR setup package is available. So, please feel free to download them and test.

Download Link:
BanglaOCR V 0.6 (source code)
Test Images

Text to Image Converter V 0.1 (for Windows)

We feel the requirement of a “Text to Image Converter” at the time when go to prepare training data. There are several specifications about the training images as well as font. Targeting to fulfill those requirements while prepare training data, I just wrote this very simple program. I could do lot more enhancement of this program, however as this is able to fulfill my requirements at present so I am releasing this as V 0.1. The release information is provided below:

Perquisites:
1. Microsoft .NET Framework Version 2.0 Redistributable Package (x86)

User's Manual:
The manual will be available after installing Text to Image Generator. Go to Start>> All Programs >> TTI >> Text to Image Generator User Guide.

Feedback:
This program is basically for the developer who need to prepare artificial training data for OCR. Any feedback about the enhancement or problems of this application is highly appreciable. At present you can post feedback on the following email address: bangla.ocr@gmail.com

Download Link:
Text to Image Converter (Setup file)
Text to Image Converter (VS .NET source file)

Sunday, November 30, 2008

Text to Image Converter (for Linux)

For several purposes of our OCR research we needed a converter that can generate an image from any given Bangla/ Bengali text. One of the reasons was to prepare artificial training and testing data. For this reason we finally created a very simple text to image converter. Actually the converter is a collection of two python script files.

Prerequisites:
pango-view

Feedback:
Please reply your feedback to the following email address: bangla.ocr@gmail.com

Download:
TTI for Linux

Interesting test on recognition performance of BanglaOCR : DPI & scan vs computer generated image.doc

I was planning to test the performance of BanglaOCR for different type image (scanned image and computer generated image) in different dpi.

First of all I generated 4 images with dpi 100, 200, 300 and 400 ant test the performance. The output is as follows:

100 dpi:

Output: আরো তুমি ভো সারাদিনই খেনা এ।ন আমাদের ধেনভে দাংবা

200 dpi:

Output: আরেঢূ তুমি তো সার।দিনই খেল । এখন আমাদের খেলতে দ।ও।

300 dpi:

Output: আরে! তুমি তো সারাদিনই খেল। এখন আমাদের খেলভে দাও।

400 dpi:

Output: আরে! তুমি তো সারাদিনই খেল। এখন আমাদের খেলতে দাও।

In the second of this testing I scanned a line of text (font: SolaimanLipi, size 16) with dpi 100, 200, 300 and 400 ant test the performance. The output is as follows:

100 dpi:

Output: জারে! ড়ুমি ড়ো পীরুাদিনই খেদীা এখন থীনীদের খেঢৗতে দভো

200 dpi:

Output: আরে! তুমি ভো সারাদিনই খেল। এখন অ।ম।দের খেলভে দ।ও।

300 dpi:

Output: আরে! তুমি ভো সারাদিনই খেল। এখন আমাদের খেলভে দাও।

400 dpi:

Output: আরে! তুমি তো সারাদিনই খেল। এখন আমাদের খেলভে দাও।

The above observations make this clear that if we increase the dpi then the output will be better.

Monday, November 24, 2008

BanglaOCR V 0.5 (for Linux users) | Released

This is the announcement about the release of BanglaOCR V 0.5 (for Linux users). The release information is provided below:

Perquisites:
1. Tesseract OCR
2. Tidy
3. Java Runtime Environment (v 1.6)
4. Font : SolaimanLipi

User's Manual:
The manual is available with the package (BanglaOCR User Guide.pdf).

Feedback:
Any feedback about the application is highly appreciable. At present you can post feedback on the following email address: bangla.ocr@gmail.com

Test Images:
A set of test images are also available in the same site where the OCR setup package is available. So, please feel free to download them and test. The images were randomly selected to test the application and obviously not based on the best performance.

Download Link:
BanglaOCR V 0.5 (Linux Users)
Test Images

Wednesday, November 19, 2008

BanglaOCR V 0.6 | Released

This is the announcement about the release of BanglaOCR V 0.6. We already fixed few problems in V 0.5 and after solving those we moved to the next release. The release information is provided below:

Perquisites:
1. Microsoft .NET Framework Version 2.0 Redistributable Package (x86)
2. Microsoft Visual C++ 2005 Redistributable Package (x86)
3. Java Runtime Environment

User's Manual:
The manual will be available after installing BanglaOCR. Go to Start>> All Programs >> BanglaOCR>> BanglaOCR User Guide.

Feedback:
Any feedback about the application is highly appreciable. At present you can post feedback on the following email address: bangla.ocr@gmail.com
I am planning to build a document image database. So, if you would like, then send us your document images.

Test Images:
A set of test images are also available in the same site where the OCR setup package is available. So, please feel free to download them and test. The images were randomly selected to test the application and obviously not based on the best performance.

Download Link:
BanglaOCR V 0.6
Test Images