Oddness with AV - page 2 - General Discussion and Assistance - CHDK Forum

Oddness with AV

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Re: Oddness with AV
« Reply #10 on: 13 / November / 2009, 18:41:05 »
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Yes, I was immediately struck by your 0.73 figure.
The power is very precisely 0.5.

It would be interesting to pursue this as I may have time to do my own tests tomorrow.

What programme are you using to analyse the images ?

How do you move this discussion to a new  thread ?


Re: Oddness with AV
« Reply #11 on: 13 / November / 2009, 19:10:14 »
What programme are you using to analyse the images ?
I was using HDRShop which was convenient for grabbing the average and sum pixel values.  It also allows you to change the response curve when you open images, which I had been setting to 1.
Gimp should work just as well.  I started looking at the histograms in gimp, plus median values and the results seem the same.

How do you move this discussion to a new  thread ?
This I don't know short of starting a new one.