Issue with Starshot test

Bugs
1

Since I upgraded pylinac version to 3.26.0 (even in 3.27) Starshot analyis is not working for me even using the same file that used to run. Attached to this document I provide the image generated in .tif by pylinac when it was working properly.

I’m getting RuntimeError: The algorithm was unable to determine a reasonable wobble. Try setting recursive to False and manually adjusting algorithm parameters.

 from pylinac import Starshot

star_img = r"2024-08.zip"
mystar = Starshot.from_zip(star_img)

mystar.analyze(radius = 0.5, 
               min_peak_height = 0.25, 
               tolerance = 1.0, 
               start_point = None, 
               fwhm = True, 
               recursive = True, 
               invert = False)

print(mystar.results())

mystar.plot_analyzed_image()
 
mystar.publish_pdf("Isocolimador.pdf")

2024-08
2024-081190×1190 27.4 KB

2

Hi,
sounds like a regression, I think it would be best if you file a bug report on github and provide the dicom files so james can test it on his machine.
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regards
Thomas

3

After upgrading to version 3.27, the program can no longer successfully analyze the DICOM files generated by the EPID.

The error message is: RuntimeError: The algorithm was unable to determine a reasonable wobble. Try setting recursive to False and manually adjusting algorithm parameters.

Even after trying to modify the parameters in mystar.analyze(radius=.5, tolerance=1, min_peak_height=0.1, recursive=False), it still fails.