Number of Points after Ensemble FFT

[Rich Kilburn]

Hi, I exported the .txt file with derivatives from MATLAB. Imported that file into Python in hopes of recreating the vector image to do further processing on the data. I'm interested in the magnitude. PIVLab exports each derivative as a single column. How can I check/ calculate the number of points per row and or per column of the image over which PIVLab calculates particle properties, so I can recreate this in Python and continue with my processing?? 

So, if my image is 1024 x 1024 pixels, and my multipass ensemble is 64 (32 step) and 32 (16 step), how will I know how many points the algorithm will provide a result for across and/or down the image?

Thank you!

[Rich Kilburn]

I figured it out! It was right before my eyes this whole time haha. The x and y points were also exported 😅.

[Rich Kilburn]

I'm not sure why I thought they were x and y displacements when u (x displacement) and v (y displacement) were also exported. 

[William]

OK, good to hear :)