Hi Kevin, 1) The weighting factors are not applied to the individual channels. What you see is a raw histogram of the data values.
2) Photosphere re-orders the images according to their exposure. It makes no difference the order in which they are given to the software. There is a check box you can use to automatically exclude unneeded exposures, but it sometimes throws out a few of the brightest pixel values. If you want to be sure you lose nothing, just give Photosphere all of your exposures and it will use what it can. Cheers, -Greg > From: "Van Den Wymelenberg, Kevin" <[email protected]> > Date: January 18, 2012 10:05:35 PM PST > > HDRI mailing list, > > 1) I am using Photosphere to examine “RGB” values of single exposures using > the Histogram function (RGB) to determine which exposures to include or > exclude in “Make HDR”. Is this histogram RGB applying the weighting factor ( > R*0.2651 + G* 0.6701 + B*0.0648) to determine the Minimum and Maximum values > reported? > > 2) Does Photosphere expect the multiple exposures to be loaded sequentially > from the brightest (longest shutter speed) to the darkest (shortest shutter > speed) or vice versa? Will the accuracy be compromised in any manner > depending on the order in which the exposures are loaded? > > Thank you, > > Kevin Van Den Wymelenberg
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