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[OM] Re: Busting a myth

Subject: [OM] Re: Busting a myth
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Thu, 07 Dec 2006 06:33:16 -0500
You've posted this page several times before and I have to say that I 
don't see what you see.  At least not anything that would get me to 
spend money for FM's stuff.

Chuck Norcutt

Moose wrote:

> I did the same thing Butzi did (but only posted it here) - except I did 
> it with a practical image of the sort of thing I photograph, not a test 
> chart.
> 
> And I didn't do the stepwise interpolation myself. I used FM's Stair 
> Interpolation Pro, which is for any image, and FM Resize Pro for the 
> camera it was taken with, a 300D.
> 
> The results spoke for themselves for me. I don't know if FM does 
> anything beyond simple 10% stepwise interpolation, but it works better 
> than any of the three PS bicubic options for me.
> 
> And the camera specific Resize Pro is even better 
> <http://www.moosemystic.net/Gallery/tech/Process/UpSample/resize.htm>.
> 
> Be sure to look at the noise in the shadows on the slicker, as well as 
> the hat creases, cheek and gloves. The RP versions don't look uprezed to me.
> 
> If I ever have to uprez a 5D image, I'll be getting Resize Pro for it.
> 
> Moose
> 
> Joel Wilcox wrote:
> 
>>On 12/6/06, AG Schnozz <agschnozz@xxxxxxxxx> wrote:
>>  
>>
>>>>Heh, it's always funny how someone actually just doing a test
>>>>can debunk accepted wisdom like this.
>>>>      
>>>
>>>The USAF 1951 Lens Chart contains no converging or diagonal
>>>lines.  If you are comparing raw resolution, I absolutely agree
>>>that Stair-Interpolation stinks.  However, if you've got lots of
>>>lines that can alias on you, a Stair-Interpolation may be your
>>>only option.
>>>
>>>AG
>>>    
>>
>>Thanks for that.  I feel convinced from looking at *prints* from
>>bicubic upsampled files and FM stair interpolated files that the FM
>>tool is a Good Thing.  It seemed to me that Butzi's using the USAF
>>lens chart for his test was a bit like using a brick for a hammer.
>>But I couldn't really say why.
> 
> 
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