Engauge Digitizer is digitizing software that converts an image showing a graph or map into numbers. The image file can come from a scanner, digital camera, or screenshot. The numbers can be read on the screen, and written or copied to a spreadsheet. Highlights for beginners include an intuitive interface and extensive context-sensitive documentation. Highlights for experts include compensation for image distortion, cartesian and polar coordinates, linear and logarithmic coordinates, automatic scanning, graphical previews, and browser help.
| Tags | Utilities multimedia Graphics Capture Scientific/Engineering Scanners Mathematics Image Recognition Medical Science Geographical Bioinformatics |
|---|---|
| Licenses | GPL QPL |
| Operating Systems | POSIX Linux Windows Windows Unix Mac OS X |
| Implementation | C++ |
Recent releases


Release Notes: Pressing an arrow key now moves the selected points.


Release Notes: A new Point Match algorithm offers speed and an easier interface, while fixing overflow error in Ubuntu. The executable is now named 'engauge'.


Release Notes: This release offers browser-based support for dates and times. Also, for the rare polar plot with decibel units for the radial coordinate, this release supports a nonzero radius at the origin.


Release Notes: This version compiles with GCC 4 for Ubuntu users. A new '-lazysegments' command line option skips segment scanning of imported files during startup for speed.


Release Notes: Data is now exported in new formats, and with increased precision. All preview windows now work in Mac OS X. A bug with the log scale on the horizontal axis was fixed.