Memory error with a detection threshold of 50*sigma

[turchis]

Hello,

I'm analyzing a data set acquired by the LCO/Sinistro telescope, and I get the following error message even if I use a detection threshold of 50*rms of the background in the sep.extract function:

"Traceback (most recent call last):
File "/export/work/marcotu/J1720/sinistro/photometry_LCO_sep.py", line 604, in
photometry(image,image_file=image_file,threshold=50.0,min_area=2,star_scale=1.5,max_fwhm=16)
File "/export/work/marcotu/J1720/sinistro/photometry_LCO_sep.py", line 329, in photometry
sources = sep.extract(data, threshold, minarea=min_area, deblend_nthresh=32, deblend_cont=1., err=bkg_rms)
File "sep.pyx", line 737, in sep.extract
File "sep.pyx", line 265, in sep._assert_ok
MemoryError"

Is there any way to tune the limit for the memory allocation in the C source code sep.pyx?

Thank you,
Marco