![]() For example, instead of elevating “0.25 * 3.14…”, you can simply enter “¼ * pi.” Multiple dataset storage You do not have to evaluate mathematical expressions PlotDigitizer can parse math equations. The installation of Engauge Digitizer might be a bit complicated in the Windows environment. Platformsīoth tools are available for all three OS: Windows, Linux, and Mac. PlotDigitizer supports data/time, logarithmic, and reciprocal axes. Particularly in science-related graphics, the data is often visualized on a nonlinear scale. Plots are not always necessarily drawn on linear scales. PlotDigitizer offers users numerous export options other than text files, such as CSV, MATLAB, Python list, JSON, MS Excel. But this is not the case with PlotDigitizer. Using Engauge Digitizer, we can export the extracted data only to text files. Additionally, you can sharpen or clarify the image or turn it into grayscale. PlotDigitizer has in-built image editing tools with which you crop, zoom, scale, rotate, and flip the image. It might require minor adjustments and editing. Many times, the graph or plot image may not be perfect. You can upload PNG, SVG, JPG, GIF, BMP, WEBP, and TIFF images into PlotDigitizer. Image file formatsīoth programs accept all common image file formats. Moreover, you can automatically extract data from bar, column, histogram, and step-size graphs. The algorithms can detect points and curves from graphs. With PlotDigitizer, you can rapidly digitize your graph images through various in-built algorithms. Automatic data extractionĮngauge Digitizer provides automatic data extraction. PlotDigitizer offers the zoom panel in both the free online as well as offline version. Engage Digitizer lacks this feature entirely. You can improve the precision of data points using the zoom panel. This feature comes in handy, especially during manual data extraction. The zoom panel is a magnifier that displays the enlarged portion of the image around the cursor. Further, you can calculate distances, angles, and areas of a portion on the image. This includes XY, polar, ternary, pie/doughnut, bar, column, histogram, and map. Graph typesĮngauge Digitizer supports only XY graphs, while PlotDigitizer gives support for several types of graphs. A well-designed user interface helps new users to quickly get accustomed to new software. PlotDigitizer totally surpasses Engauge Digitizer in the user interface. The professional user interface and smooth user experience are some of the key features of PlotDigitizer. Though PlotDigitizer’s online app has limited features, it is enough for data extraction. ![]() ![]() On the other hand, PlotDigitizer offers a free online app for users, so they can test the tool before installing it on their computers. You have to install it on your local machine to use it. Online appĮngauge Digitizer does not have any web interface. In the rest of this article, we have compared the features of the two tools. The free online app of PlotDigitizer suffices all the basic requirements for data extraction. Further, it is available for online as well as offline use. PlotDigitizer is professional and polished software. PlotDigitizer is the best free alternative to Engauge Digitizer to digitize plot and graph images. Besides that, there are many other drawbacks of the software. However, you can extract numerical data values from XY graphs only. It is free and open-source software and available for download at Github. ![]() Engauge Digitizer is one of the popular graph digitizers that allows users to extract data points from graphs and charts. ![]()
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