Request for Non-Square Interrogation Window Support in PIVlab

[sanjayvasanth98]

I am writing to request the addition of non-square interrogation windows in PIVlab. As of now, the software supports square interrogation windows (e.g., 32×32, 64×64 pixels). However, many experimental setups and flow phenomena would greatly benefit from rectangular or otherwise non-square windows (e.g., 64x32, 64x16 pixels). Allowing users to define both the width and height of the interrogation area independently would help where one dimension is more critical than the other. It could potentially reduce overall processing time as well.
I kindly request that you consider implementing this feature in a future release. It would be a welcome improvement for numerous PIVlab users. Thank you for your time and contribution to the open source community.

[Shrediquette]

I think this will be a bit difficult to implement with the current code. How about resizing your image data before analysis in PIVlab? You could scale x direction up by a factor of two, then do the analysis, then rescale the results. This would give quick-and-dirty non-square interrogation areas.

[sanjayvasanth98]

Thank you for the suggestion! Rescaling the image sounds like a practical workaround. I’ll give that approach a try.