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[OM] Re: E-500 senior picture

Subject: [OM] Re: E-500 senior picture
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxx>
Date: Sat, 15 Jul 2006 16:22:41 -0400
Sorry, I didn't understand your point about compression.  As I'm editing 
an image and see holes and spikes appear in the histogram there is no 
JPEG image compression involved.  What did you mean that I missed?

Chuck Norcutt

tOM Trottier wrote:
> On Friday, July 14, 2006 at 11:45,
> Chuck Norcutt <olympus@xxxxxxxxxx> wrote:
> 
> 
>>Sorry, not enough coffee yet I guess.  But the point is that rounding 
>>will eventually cause some points that were previously distinct 
>>brightness levels to coalesce.
> 
> 
> When compressed. But that is not a visual problem.
> 
> When expanded, the distinct levels have a greater distance between them, ie, 
> posterisation. That 
> usually is a visual problem


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