Paka wrote:

> * The Real Bev <[email protected]> [07-21-09 22:28]:
>> 
>> I crop out a section, which I want to enlarge -- perhaps to a specific size. 
>>  I 
>> export it at 40% quality in (a) original size; (b) resize to 1600 (the max); 
>> (c) resize to 2400 (edited 1600 to 2400 by hand) and (d) resize to 2400 @ 
>> 100% 
>> quality.
>> 
>> All are exactly the same physical size, but the last one has a much larger 
>> filesize.  I can reduce the physical size (reduce to 600...) but not 
>> increase it.
>> 
>> Am I missing something?
> 
> yes, mis-leading terms.  Physical file size is an indicator of but does
> not define viewing size or quality!
> 
> imnsho, you should crop at 100% quality, then resample the crop at
> 10-15% levels increasing the output each time.  But you will have to
> use a different program to administer the effect as it is really beyond
> picasa.  I would suggest the gimp using Lanczos3 interpolation and
> successive steps of 10-15%.

xv does it just fine -- and easily, just tap the period key until you're happy 
-- but it destroys the exif information.  Maybe I'm too anal about saving that, 
it's not like I don't already have it on the original,which bears the same 
filename...

-- 
Cheers, Bev
===================================================================
Giving advice likely to kill the stupid is called passive eugenics.

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