When outputting full-resolution photos from Photoshop CS2 for web  
presentation, I have a script that

- performs colorspace conversion to sRGB and flattens
- performs sizing to the desired output size in
   pixels (590 tall for portrait orientation, 790 wide for landscape  
orientation)
- runs a final sharpen pass of USM (0.7 pixels, 35%, threshold 2)
- converts from 16-bit to 8-bit
- adds a thin white/black border (1 pixel each)
- saves to a JPEG file set to quality 6 with embedded sRGB colorspace  
profile

That seems to do the trick about retaining as much fidelity as  
possible *most* of the time. Sometimes, depending upon the subject  
matter, the sharpening needs to be customized. Other times, the down- 
rez for web display darkens the image overall and I have to do a  
minor curves adjustment to return it to close to the original tonal  
rendering.

Godfrey


On Sep 10, 2007, at 1:53 PM, Pål Jensen wrote:

> I'm trying to upload a few pictures to my portfolio at Photo.net.
> However, when I save the files as JPEGs I loose some saturation;  
> not so much
> to bother much about but I can't remember noticing it the last time  
> I did
> this.
> More serious though is that when I upload the images to my  
> portfolio at
> Photo.net the saturation decreases, the contrast decreases and the  
> image get
> a bluish cast: the image losses all its impact. Anyone knows whats  
> going on?


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