Next, you need to increase the sharpness and resize the image.

During the execution of the work, I performed a scan of the graph, image processing of the graph, digitization of coordinates and the construction of a mathematical model of the curve.Īfter scanning, the first thing to do is to bring the resulting image to full contrast and align one of the axes of the graph. Since the processing of such graphs on a computer significantly increases the speed and accuracy of this process, it was decided to explore the possibilities for digitizing the graph and building a mathematical model of the curve presented on the graph.Īs an example, I took a graph of the efficiency of the generator from its power from a laboratory workshop on electrical engineering. In the process of carrying out laboratory practical work in physics, I often have the task of determining the value of a function from its graph presented on paper, for further calculations. For a one-time task, this method is not so bad, but if there are more than one graphs and each one contains not one curve, but a family of curves?

The traditional 'manual' method is very inconvenient and also introduces large errors in the data. The task of digitizing graphs of functions and curves has to face almost every engineer and student.

Wolfram mathematica graph size