Getting numerical values from published graphs and plots can be difficult sometimes, particularly when raw data is not given. It may be necessary to integrate data into new visualizations or compare historical and current trends. For any such activities, the conversion of graphical representation into numerical values is very important.
This is where the Wizard of Digitization comes in handy.
Wizard of Digitization
Firstly, you need to import your plot or graph picture into Wizard of Digitization . After which, the software overlays that graph as a background, upon which user can select the area he wants to digitize. Then there are options for setting up scales on both the x -and y- axes, with linear and logarithmic scale types available. At this point, you can either select automatic or manual processing.
Automatic and Manual Graph Handling
Now some pixel colors have to be selected during the digitization process, where all lines of grid will be excluded by some sophisticated algorithms to ensure accuracy. Then any manual adjustments could be made on those dots before getting precise results.
Capturing Published Data
In scientific papers, plots are often only available as PDFs. To extract data points directly from the screen, use Wizard of Digitization. You can position and re-size a framework window to fit in your desired graph then, by using ‘Add Points from Screen’ feature, mark grid points on display.
Features of the Digitalizing Tool
- Graphics Formats: Supports BMP, WMF, EMF, JPEG and GIF formats.
- Selected Data: Allows digitization of specific datasets only
- Scales: Can handle both log scales and linear ones as well.
- Rotated Charts: Automatically corrects for rotated graphs.
- Color Selection: Select multiple pixels color for precision.
- Net Exclusion: Uses algorithms for excluding grid lines.
- Error Correction: Add or delete individual points as required.
- Multiple Data Sets: Define and manage multiple data sets in one file
- Sorting: Sorts data values, making analysis easier.
- Export Options: Export data to text files or clipboards.
With all these, the Wizard of Digitization ensures a proper conversion of graphical data to numerical data and is therefore an important tool for data analysis and integration.