Why some viewers show image......

tomwilli · 5th of March 2007 (Mon)

Why do some viewers show a photo as over sharpened and some viewers don't?

If I view a photo (jpg) that was modified/fixed in CS2 in the Bridge viewer, it looks OK. But if I view it in the DPP viewer it looks way over sharpened. I generally notice this with hair. Why is this?

Many Thanks,

Tom

Hellashot · 5th of March 2007 (Mon)

Are you viewing them both at 100%? If you are viewing a processed and sharpened image at say 25%, the quick resizing a program does may make it look worse than viewing at 100%. DPP may also be applying additional sharpnening, but that is unlikely.

tomwilli · 5th of March 2007 (Mon)

Well, I'm viewing them both at 100 %. I'm not doing any resizing, just opening the jpg with the mentioned viewers. I guess may concern is which viewer is accurate?

marksonthestreet · 5th of March 2007 (Mon)

I know enough to be dangerous but my hypothesis is that either the codec used in CS2 speaks a different language than DPP, or it's just the nature of Lossy images, if you open a jpeg and save even the smallest change it gets reconverted and detail is lost and artifacts appear and it gets worse with every generation, like a vhs tape. As far as accuracy I'd say go with Adobe, they are buying everything and everyone.

5th of March 2007 (Mon)	#1
tomwilli Member Join Date: Nov 2005 Location: Birmingham, AL Posts: 304 IMAGE EDITING OK	Why some viewers show image...... Why do some viewers show a photo as over sharpened and some viewers don't? If I view a photo (jpg) that was modified/fixed in CS2 in the Bridge viewer, it looks OK. But if I view it in the DPP viewer it looks way over sharpened. I generally notice this with hair. Why is this? Many Thanks, Tom __________________ Canon EOS 40D w/ Grip \| Canon EF 50mm f/1.4 \| Canon EF 85mm f/1.8 \| Canon EF 24-70 f/2.8L \| Canon EF 70-200 f/2.8L IS \| Canon Speedlite 580EX w/ LSII \| 2 Pocket Wizards \| Bogen Manfrotto 3021BPRO \| Bogen Manfrotto 488RC2 \|

5th of March 2007 (Mon)	#2
Hellashot User is banned from forums Join Date: Sep 2004 Location: USA Posts: 4,617	Re: Why some viewers show image...... Are you viewing them both at 100%? If you are viewing a processed and sharpened image at say 25%, the quick resizing a program does may make it look worse than viewing at 100%. DPP may also be applying additional sharpnening, but that is unlikely.

5th of March 2007 (Mon)	#3
tomwilli Member Join Date: Nov 2005 Location: Birmingham, AL Posts: 304 IMAGE EDITING OK	Re: Why some viewers show image...... Well, I'm viewing them both at 100 %. I'm not doing any resizing, just opening the jpg with the mentioned viewers. I guess may concern is which viewer is accurate? __________________ Canon EOS 40D w/ Grip \| Canon EF 50mm f/1.4 \| Canon EF 85mm f/1.8 \| Canon EF 24-70 f/2.8L \| Canon EF 70-200 f/2.8L IS \| Canon Speedlite 580EX w/ LSII \| 2 Pocket Wizards \| Bogen Manfrotto 3021BPRO \| Bogen Manfrotto 488RC2 \|

5th of March 2007 (Mon)	#4
marksonthestreet Member Join Date: May 2006 Location: Daytona Beach Posts: 279 IMAGE EDITING OK	Re: Why some viewers show image...... I know enough to be dangerous but my hypothesis is that either the codec used in CS2 speaks a different language than DPP, or it's just the nature of Lossy images, if you open a jpeg and save even the smallest change it gets reconverted and detail is lost and artifacts appear and it gets worse with every generation, like a vhs tape. As far as accuracy I'd say go with Adobe, they are buying everything and everyone.

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