## gollywop's recent activity

• I found the fact that it came up with exactly the same figures as the prior run to be somewhat odd. So I double checked, and indeed, for some reason, no doubt my fault, Mathematica didn't really ...
• Well, I underestimated my method. I decided to try it using the unaltered values from RawDigger. That is, RawDigger indicated that, for a gray 128,128,128 raw file, the G/R ratio (of averages) was ...
• Replied in Further data
Well, there is indeed promise for this method, but it does require a good starting point. The problem, of course, is finding a means for obtaining a good starting point quickly and easily. My ...
• Replied in Chris
BTW, I meant to say r1 = G/R and b1 = G/B. r2 and b2 are defined the same.
• Blue is max for my Olympus cameras (180/98/227 for the E-M5 II), and for the Canon S90 I was just playing with. I'll have to wait till later this evening, however, to continue with the Canon ...
• I have just done some more experimenting. I was bothered by the fact that I knew my starting values were pretty close, and I feared the linear approximation being assumed might be poor if the ...
• Yes, that seems a good strategy. My method, I fear, is not good unless one has a pretty good starting value. I'll post separately on this. Meanwhile, enjoy the G7. :-)
• Well, you have more faith than I do. The method worked just fine for me, but I can't guarantee it will work in general. :-) When I have time, I'll do more experimenting to see how robust it is. Mea ...
• Tony, I made some Excel documents to do these calculations. There are two versions, one a .xls for older versions of Excel and a .xlsx for newer versions. The doc for older versions is at https://w ...
• This worked splendidly for me, resulting in a first-time determination of UniWB coefficients (258,256,256,256). I have no idea how well it will work in general, but I have no reason to believe it ...
• I've just been experimenting with another means for determining UniWB that removes the trial-and-error. It's working beautifully with my E-M5 II. I devised this techique because I was having ...
• Replied in HDR
pun intended, I would suspect. ;-)
• Replied in HDR
Actually, IMO, when viewed at its proper (original) size, it is quite the opposite of that characterization – and is perfect for its purpose.
• Replied in HDR
Who is BBB? Bolded above.
• Yeah. Then there's the psychedelic Japanese maple: It's more fun when not squeezed into sRGB. ;-)
• Replied in HDR
Yeah, well, you can't make the brights any brighter, or the darks any darker, but you sure can do a heck of a lot with what's in between. :-)
• I print a dozen shots (large) each year for my wife's Christmas calendar, and another dozen (smaller) for her office calendar. I may print some other shots for other occasions. But mostly I process ...
• Replied in HDR
Well, to be fair, BBB, they don't have any more DR. They just make significantly better tonal use of that DR. :-)
• Replied in I drink a lot.
Happy Thanksgiving, Tom. Best wishes, -- gollywop http://g4.img-dpreview.com/D8A95C7DB3724EC094214B212FB1F2AF.jpg
• Replied in I drink a lot.
And I watch Tom. :-) I love #2, btw, Tom. It has all the right compositional elements and complete tonal glory. But the real kicker is that house in the lower right. It's just the right touch.
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