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[filmscanners] RE: OT: Resizing without resampling



You are correct; it should not effect the sharpening per se, although it may
alter the perception of the sharpening.  When you resize without resampling,
you are only changing the effective resolution but not the actual
resolution.  In short if you make the image larger, you are not decreasing
the number of pixels in the file but merely spreading them out further so as
to have fewer per inch but not fewer in the image file.  When you resample,
you are changing the overall number of pixels in the image file.

Typically, such resizing or even resampling does not lessen the sharpening
making it softer for all practical purposes; but resampling can and often
does create artifacts which resizing alone does not.

-----Original Message-----
From: filmscanners_owner@halftone.co.uk
[mailto:filmscanners_owner@halftone.co.uk]On Behalf Of Nagaraj, Ramesh
Sent: Wednesday, November 05, 2003 12:19 PM
To: laurie@advancenet.net
Subject: [filmscanners] OT: Resizing without resampling


I have document that is color corrected and sharpened.
Adobe's Image size dialogbox has "Pixel size" and "Document size".
After sharpening, I am using "Image size"->"Document size"(with Resample
checkbox off) to change the width, height and resolution without resampling.

My questions are
*Does this documennt still hold the sharpening?
*Should I have done resizing before sharpening?

I do not have backup of color corrected images.
Here I am changing the width, height and resolution without resampling; my
understanding is this only adds some metadata to document. I think
sharpening will get retained after this resizing.
I am doing this for printing, pls confirm whether my understanding is right.


Thanks
Ramesh




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