I'm quite new to Mathematica. I've used Matlab in the past but it was a long time ago.
I'm working on developing a Dark Room Light meter and need to fit some curves. But, ideally, I need to fit all the curves in a single 2 variable surface.
I couldn't upload the picture, so I leave a link to it: Plot Each curve corresponds to a Printing Range that would be the -y- axis, while the exposure would be the -x- axis and the Density (darkness of the print) will be the -z- axis. The variables of the function will be x and y and the result should be the Density.
One approach would be taking individual values of each curve at different points and try to fit a 2 variable function. But since I see that it's quite easy to fit a function for each curve, I would like to approach the two variable function from the curve fitting of each plot.
Separating each plot is not an issue since I can even do it in Photoshop before feeding it to Mathematica.
Thanks in advance for you help.