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Unlocking Digital Potential from Static Image DataGoing from paper to digital. Image generated using DALLE by the author.

When working within data science, geoscience or petrophysics, we often come across data or charts that are in image form, such as those within publications. However, the associated data is not present which means it can be difficult to use this data in our interpretation or research.

This is where a tool like WebPlotDigitizer becomes really useful. This online tool helps us take those charts from images and turn them into data that we can use for further research and analysis.

There are a number of areas in petrophysics and geoscience where digitising charts can be very beneficial, including:

In this article, we will see how we can use the WebPlotDigitizer to extract data from a scatter plot made with synthetic data. In most cases, the quality of the figures we may deal with will likely be poorer.

Also, it is important to remember that when we use data from sources, we should always cite where it came from as well as the methods of how that data was obtained.

After capturing the image from the publication, it is time to load it into the WebPlotDigitizer.

To do this, we first navigate to:

File -> Load Image Files

Here, we can choose what type of plot we are dealing with.

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Unlocking Data from Graphs: How to Digitise Plots and Figures with WebPlotDigitizer - Towards Data Science