Leginon

Can we get BlackStripeDetector node in Leginon to detect "grey" stripes on the output images. See email from Bill below from 12/14/18:

"Looking carefully at the pixel values in the image of the summed frames, it seems that there are several non-zero pixels in the image. Attached is a screenshot viewing one of the summed images in IMOD, using its pixel viewer. You can see that most pixels have 0 value, but a few have fractional values. This is the first time we have seen this. Normally the entire stripe is 100% 0 pixel values (mean=0, sd=0). Perhaps this indicates there are more complicated issues at play right now. Can you communicate this to other members of the support ream, in case this helps?

Note: the second screenshot shows pixel values in the grep part of the image, ranging from around 38 to 70. I'm guessing this means that only occasional counted frames are sending non-zero values since the non-zero counts in the stripe are closer to 1 than 50."

See also redmine issue 6129 (http://emg.nysbc.org/issues/6129#change-27163) for related information.