Useful Freeware

Quickly Digitize Scanned Curves with Engauge Digitizer

Engauge Digitizer can help you quickly digitize scanned charts, plots and maps into numeric data. The workflow is easy to follow and includes the following steps:

1. Import an image file to digitize.
2. Pick three points on the axises to define the X and Y axis (those can be for cartesian, polar, linear and logarithmic graphs).
3. You can clean-up your image by features like automatic grid removal, and discretize. The discretize is very helpful in cleaning up the image, where you can specify various thresholds with real time preview of the image.
4. You then face two choices – manual and automatic digitizing process.
5. Finally when happy with the results – you can export the data to a .csv file to be processed with other software.

Overall I find it a very useful freeware program especially for engineers, scientists and students, where very often it is helpful to digitize data from a plot, scanned from a book. It is a powerful software with a very good set of automatic detection tools.

This entry was posted on Monday, December 22nd, 2008 at 12:01 am and is filed under Math. Find similar posts by selecting any of the following tags: . You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.