Lightroom 1.3 resize on export artifacts still there, samples inside

Question

Here are samples of the artifacts.
http://finalpass.net/images/misc/LR-resize/resize.png
This has been brought up before, by me as well but I want to re-iterate the problem since its still not fixed in 1.3. If you export an image out of LR and you have LR resize it for you, there are very apparent "halo" type artifacts around hard contrasty edges which are very apparent for things like white text against a black background.
For this reason, I never resize out of LR but it just adds more steps and a temporary larger footprint for my photos before I resize in PS.

Answer 1

Hi!
I've done some looking into where the problem starts (for me). I don't see much of the problem when downsizing pictures, but I guess this is because the halos I get annoyed by simply gets too small and thereby (nearly) invisible.
My project started with trying to do a really large print from a Nikon d70 raw file (NEF) and any method I try that involves LR (1.3.1) results in a thin white line inside darker areas.
I've gone through a lot of steps to minimize these artifacts and found LR/Mogrify (which I LOVE for quick exports with frames and names - thanks Tim) but when doing a really large picture it doesn't make it either. (I go from 1750 px cropped dimension to 5866 px for a 149 cm wide picture in 100 ppi.)
So I tried just exporting from LR without resizing at all and with no sharpening at all since I found that sharpening made it worse. And after that opened the file in CS2 and the inverted halos are there, and with USM they became really ugly.
My next step was to reshoot the picture (yes I had the possibility, it's a tree ...) whit my new d300 and thought that would fix it, better lens and all. But no such luck! (Only have to upsize from 2650 px to 5866 px.)
So I looked at the picture in 4:1 magnification in LR and it's visible already before export! My conclusion was that it's something strange that may cameras do. How to figure this out?
Shot an new picture in raw+jpg. No artifacts whatsoever in the jpg! (Viewed in Irfanview)
I open the raw in Nikon Capture NX (which I really haven't found worth comparing at all to LR earlier) and behold: No artifacts at all!
Back to find the problem in LR. Set the picture to zeroed (LR develop preset) and the artifacts are barely visible, but there. The thin, white line starts to become visible as soon as I start adding any kind of contrast. The contrast slider, the point curve and the tone curve all increases the effect of the halo. Even the clarity slider and recovery have some impact.
I also tried to export from Capture NX to a tif file and then import to LR and did a lot of tweaking with that one, but no halos appears. But if I sync with the picture that gave me problems to begin with, the tif also gets these thin, white lines. However, if I copy the values by typing them in to the different tools no artifacts appear. (But the pictures didn't end up looking the same due to different file formats I guess.)
My conclusion so far is that the problem doesn't come from the export part of LR but from the raw conversion. Is this possible? Can anyone confirm or deny my theories? I'm certainly not certain ...
It seems to me the more you pull the sliders the worse it gets.
Does it affect different raw files in different ways? Is this a Nikon problem? What cameras do you work with?
Wow! This became a loooong story. And I'm not really much clearer about this now than I was before I started. Just wanted to share this. Maybe it helps ...