au.findChannel(img, channel, img2)
CASA <2>: au.findChannel('HLTau_CO1_0.tap200klR0.5_0.5kms_ms_flgbig.image',0,'HLTau_CO1_0.tap200klR0.5_0.25kms_ms_flgbig.image') *** reffreqtype in get before *** reffreqtype in get LSRK Channel 0 = 115272353510 Hz Channel 55 = 115261779668 Hz *** reffreqtype in get before *** reffreqtype in get LSRK Channel 0 = 115273507020 Hz Channel 135 = 115260530032 Hz channel = 11.9999999395 Out[2]: 12-- ToddHunter - 2015-01-09