Yes, that was a good link. Much better than the PhotoShop help file.
Chuck Norcut
"J. Van Brimmer" wrote:
> Thank you, Richard & Wayne, I understand the principle of HDR now.
>
>
> On Tue, Nov 4, 2008 at 3:14 PM, WayneS <om3ti@xxxxxxxx> wrote:
>> At 05:50 PM 11/4/2008, Dickwrote:
>>> "J. Van Brimmer" wrote:
>>>> Okay, I'll humble myself and ask the dumb question. What are you guys
>>>> talking about, what is HDR?
>>> HDR - High Dynamic Range
>>> http://tinyurl.com/o3kfo
>> Often this is achieved by combining multiple exposures, but with todays
>> digital cameras, getting close to 8-9 stops of range, where the histogram
>> covers a wide range, can be processed with HDR techniques.
>>
>> The first HDR algorithm I studied was back in the 70's, called homomorphic
>> signal processing. What it does is balanced the overall background exposure
>> range while preserving detail.
>>
>> Here was one of my attempts at it: http://tinyurl.com/564b8y
>>
>> But today it is often associated with extreme processing of sorts.
>>
>> There are a lot of potential creative options for output.
>>
>> Photomatix was the standard used by many people, but PS CS4
>> can also do HDR blending.
>>
>> WayneS
>>
>>
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> --
> jv
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