engauge-digitizer

Interactively extracts numbers from bitmap graphs or maps
  https://markummitchell.github.io/engauge-digitizer
  5
  3 reviews



The Engauge Digitizer tool assists in interactively extracting numbers from images of graphs. Conceptually, it is thus the opposite of a graphing tool that converts data points to graphs. It provides assistance in enhancing the image quality and matching the data points. Engauge Digitizer is used by individuals such as grad students and researchers as well engineers and employees in large government and commercial organizations for processing single files but also managing databases of thousands of image files.

Features of Engauge Digitizer include:
* Automatic grid line removal
* Automatic point and axis matching
* Automatic curve tracing
* Image processing for separating important details from background
information
* A wizard providing an interactive tutorial to explain the basic steps
* Multiple coordinate systems in the same image can be digitized in
advanced mode
* Cubic spline interpolation between points gives more accurate curves with
fewer points
* Handling of Cartesian, polar, linear and logarithmic graphs
* Support for drag-and-drop and copy-and-paste
* Context sensitive help, user manual and tutorials explaining every
feature
* Preview windows to give immediate feedback while modifying settings
* Automated line and point extraction to rapidly digitizes data
Latest reviews
5
zboraon 3 years ago

Best app to digitize old graphics, however the one in the repos is rather old.

5
m4daredsun 10 years ago

So useful and friendly when you have to extract numerical values from graphs

4
NfG84 10 years ago

It's a very useful to get data extracted out of graphs. Yet, the 'automatic' thing didn't work for me in a case with multiple data sets plotted in one graph.