I am a student user of this code. I would like to have more information about how it is the best way to decide the subset size. I am measuring the coeficient of thermal expansion of diferent materials, and this code is useful to calculate the displacements. It shows me clearly how are the displacements, but I have not too much idea how to decide and adapt the subset.
I am using pictures of 4272x2482 px Resolution.
In this picture is located the sample, so the grid is not in full picture. Should I do another thing instead correlate the full picture?.
Also, I know the CTE of Copper, which is 16 ppm/K but to be honest, I do not know how to adjust this parameter, or I have to correlate in another way.
Hi all, I am very interested in this code, I am using it to measure how it is the dilatation of metal samples and taking pictures. I convert the picture to BW format only binary, to see in pixel precision the edges. What I want to know, is measure the space in a straight line between two pixels, by doing this in the picture, handling for instance. Like Autocad does with the magnetic cursor, make a cursor or something like that, sensitive to pixel precision and take measures in a easy way. Tell me if you have an idea by email.
First of all, Thanks you a lot for the code, it is helpful for me.
I am spanish student who is doing the final project to finish Industrial Engineering. I have tried your code and I find some difficult, ho to calculate CTE. I have temperatures from 25 º to 90º and I have taken 4 pics. The code, makes NaN the three last Temp and only shows me in the results one point at the first Temp. All Temps are previously written in a txt file. The question is, is the offset time in this case 0?. I do not use any DAT, hardware/software.