apply_mask#

Apply mask on PIV data. It calls pivLib.apply_mask() to treat the input PIV data, and save the results (masked PIV data) in the same files. See here for more details.

Syntax

python apply_mask.py piv_folder mask_dir

  • piv_folder: folder containing PIV data (csv sequence)

  • mask_dir: directory of a tif binary mask, of the same shape as raw images.

  • erode: number of pixels to erode from the True region (this makes the mask smaller, reducing boundary effect). Default to 32, a good value is the winsize of PIV.

Test

python apply_mask.py test_imagespply_mask test_imagespply_mask\A.tif

Edit

  • Nov 03, 2022 – Initial commit.

  • Dec 01, 2022 – Remove erosion step. Mask should be used as it is.

  • Dec 13, 2022 – Fix a bug.

  • Dec 19, 2022 – More accurate docstring.

  • Jan 05, 2023 – (i) Adapt myimagelib import style. (ii) Add screen info.

  • Feb 08, 2023 – Rewrite in function wrapper form, to make autodoc work properly. (autodoc import the script and execute it, so anything outside if __name__=="__main__" will be executed, causing problems)