[argyllcms] Re: Failure to profile printer using colormunki

  • From: Graeme Gill <graeme@xxxxxxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Sun, 07 Mar 2010 14:51:25 +1100

Richard Hughes wrote:
Log file attached. Thanks.

munki: Read measurement results: inummeas 84, scanflag 0, address 0x998cf30 
bsize 0x59e8
about to call usb_read with 23016 bytes
Read 84 readings, ICOM err 0x0
(Trig & rd times 1 0 630 0)
Needed scale is 0.837309
munki_optimise_sensor called, inttime 0.007168, gain mode 0, scale 0.837309
munki_optimise_sensor returning inttime 0.007168, gain mode 0
New inttime = 0.007168
Doing a white calibration with opt int_time 0.007168, gainmode 0

I'm not sure what's going on. 0.007168 is the minimum integration time,
yet the result is too bright. For comparison, my instrument needs an
integration time of 0.0182 (2.5 x more) to get close to the optimum
white level.
So either:
        There's something wrong with the sensor or LED.
        There's some bug in estimating the brightness level.
So a lot more debug info is required to track down the problem.

I'll take a look through the first trace (-D5) again and see if I can spot 
anything.

Graeme Gill.

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