interactively extracts numbers from bitmap graphs or maps

interactively extracts numbers from bitmap graphs or maps

engauge-digitizer

Free

This digitizing software converts an image file showing a graph or map into xy data (coordinates). Some people use it for obtaining the original data from graphs in scientific publications.

Features:

  • Automatic grid line removal
  • Automatic point matching
  • Automatic curve tracing
  • Automatic axes matching
  • Handles cartesian, polar, linear and logarithmic graphs
  • Support for drag-and-drop and copy-and-paste
  • Context sensitive help, user manual and tutorials explain every feature
  • Preview windows give immediate feedback while modifying settings

License: Open Source
Version: 5.0