Welcome to Ferenc Veres' personal website

Information about my software projects and articles on various computer related topics, including but not limited to HTML/CSS, web development, CMS systems, Xaraya CMS, Commodore 64, IDE64 and OpenMoko.

New info site for DjVu document format - Hungarian

Posted by: Ferenc Veres on April 16, 2014 08:19:28 PM +00:00
DIY Book Scanner

For best results from my bookscanner, I started using the DjVu format, which is designed for scanned books. I've collected a lot of useful information, so I decided to publish that as a small info website, in Hungarian: www.djvu.hu

WebDjVuTextEd - online DjVu text layer editor

Posted by: Ferenc Veres on April 9, 2014 10:35:51 PM +00:00
DIY Book Scanner

Exisitng editors for text data DjVu files are quite limited, like for example DjVuSmooth. So I've implemented a new editor in JavaScript, that allows editing both the strucutre of the text (paragraphs, lines, words,...) and the coordinates of the text boxes by simply dragging with the mouse, features like create, delete, merge are also available.

DIY bookscanner and correcting barrel distortion

Posted by: Ferenc Veres on December 22, 2013 10:27:47 PM +00:00
DIY Book Scanner

There are many challenges with my DIY bookscanner. I plan to document them sometime... The biggest modification was to replace the plexi glass with the top part of a scanner, because the plexi was very much scratched after a few books. Spreading the light with a semi-transparent cover near to the lamp was also necessary.

Most annoying of all problems was the barrel distortion of the camera.  This made the whole equipment no competition to the flatbed scans of old books that are already scanned, that I also plan to scan to improve quality.

OpenStreetMap.hu business card and website news

Posted by: Ferenc Veres on March 28, 2013 11:07:47 PM +00:00
OpenStreetMap

I've added some improvements to the openstretmap.hu website:

  • PlanetPlanet news aggregator
  • Ability to search multiple POIs (e.g. bank & atm, or when shop type does not matter, you just need some food)
  • Added a name-less business card created by a professional designer
  • Coordinates supported in search box

And of some minor improvements, mainly in usabilty of search box, and updated street autocomplete database.

Building my DIY book scanner

Posted by: Ferenc Veres on September 9, 2012 09:42:27 PM +00:00
DIY Book Scanner

To explain this book scanner idea in a few words, compared to traditional flatbed scanners or special flatbed book scanners:

  • 90 degree holder plate for the book
  • no need to push the book
  • no need to disassemble the book
  • built from cheap leftover material
  • scanning with a compact photo camera
  • no wait for a flatbed scanner to move across a page slooooooooowly

There is an excellent community for building home made book scanners. By following the guides on diybookscanner.org it's easy to build your own scanner, that can scan a 300 pages book in 30 minutes. After 1.5 hours postprocessing work (in ScanTailor) you'll have very good black & white TIF images, that are straight, cleaned from noise, well readable. (No OCR or single-file conversion is included in this time frame.)

Book store links added to my Commodore book lists

Posted by: Ferenc Veres on August 23, 2012 10:06:04 PM +00:00
Commodore 64

Each book in my Commodore Book List has been extended with links to two major Hungarian antique book stores:

Thus if you like a book, you can easily check whether there is one for sale. ;-)

How to adjust dates in photo EXIF headers (and copy to file date)

Posted by: Ferenc Veres on August 20, 2012 08:28:12 PM +00:00
Linux

Have you ever had the problem that your camera's date was misset or reset, so all your EXIF and file dates were broken?

In this case you need to adjust the date in several images and preferably alter the file date accordingly. This is much easier than you thought, two simple commands using Linux tool exiv2.

 

OpenStreetMap.hu V2.0

Posted by: Ferenc Veres on July 24, 2012 06:43:53 AM +00:00
OpenStreetMap

I've updated the openstreetmap.hu website with some new features and new page layout. New features inlcude:

  • Autocomplete for Hungarian city names and streets
  • Remember last viewed position
  • Nice GUI using jQuery UI framework
  • Directly controll JOSM from "Edit in JOSM" menu
  • Improve "Send to" by e-mail field and URL copy field and better "Add marker"

OpenStreetMap.hu is up'n'running

Posted by: Ferenc Veres on October 30, 2011 08:58:12 PM +00:00
OpenStreetMap

The www.openstreetmap.hu domain was occupied by an empty HTML file for years. Recently I discovered it is free, so registered it immediately. Let's see if someone will complain.

Update: The old owner of the domain is happy with the new site. :-)

With help of an OSM-JS professional, we got the new site up & running in a few days  - thank you mate!

OSMTippek - A new OpenStreetMap help site

Posted by: Ferenc Veres on August 1, 2011 08:10:50 PM +00:00
OpenStreetMap

Based on the RealProSite CMS, I've created a new Hungarian website where I write tutorials for editing OpenStreetMap the free wiki map of the world.

www.osmtippek.hu (Hungarian text)


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