Octave script to obtain the edges from an streak image and obtain the pressure and velocity of the plasma expansion.

It asks for the file to process and later work on it. This file should be a *.dat format, and binarize the matrix and finds:

• Radial plasma expansion,
• Velocity of the plasma,
• Presure, based on the Hugoniot curves.

It saves two text files, one with the radial expansion of each side and other with the radial expansion, velocity, and pressure. Also, a *.jpg file is created that show the binarized matrix.

Out of the ima.m, also the files deri.m, display_rounded_matrix.m, and supsmu.m are used.