Can ImageStats also return the v_sum value?
jjweimer
Sun, 07/30/2023 - 08:28 am
Could ImageStats also return the v_sum value (as with WaveStats)? It seems otherwise that we are forced to use ImageTransform sumPlane or a MatrixOP method. The latter approach becomes especially cumbersome when needing to apply it using an RoIMask.
My primary need is to be able to calculate flux values (intensity/area) in regions defined by a marquee drawn over an image.
If you use the built-in dialog, the sum value is listed in the table. If you are using the operation in a procedure you can get the sum from:
Print v_avg*v_npntsJuly 31, 2023 at 10:35 am - Permalink
Thanks AG. I am embarrassed that I missed this one.
July 31, 2023 at 01:14 pm - Permalink
In answering a question to myself, I will add the (probably) obvious note that both v_avg and v_npnts exclude values such as NANs, and INFs so that AG's suggestion does provide the total for valid data. Which is probably what you (and everyone else) would want.
August 4, 2023 at 06:16 am - Permalink