Plot-digitizer-matlab -

: Detailed walkthroughs for tools like Gravit (or GRABIT) demonstrate how to load images, calibrate linear or log axes, and export data directly to the MATLAB workspace. General Digitization Workflow

Regardless of the specific tool, the process generally follows these steps: Scalar plot digitizer - File Exchange - MATLAB Central plot-digitizer-matlab

: For a manual, code-based approach, you can use the built-in ginput function. A common workflow involves loading an image with imread , displaying it with imshow , and then using ginput to capture pixel coordinates and transform them into graph coordinates using a calibration algorithm . : Detailed walkthroughs for tools like Gravit (or

: A modern app that handles various image formats and supports complex digitizations, including log-scaled, tilted, skewed, or polar plots. It can re-interpolate data to a specified sampling rate, which is useful for further analysis like surface interpolation. : A modern app that handles various image

: One of the most popular and long-standing utilities for extracting data points from image files (BMP, JPG, TIF, GIF, and PNG). It features a GUI that allows you to calibrate axes by selecting four points and then "grab" data points by clicking along the curve.