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tomb18
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p.1 #1 · CS3 Up-rezzing Guru's needed!


Hi, I was wondering what a good workflow for uprezzing of photos should be, in terms of the overall image processing steps.

My general workflow is as follows:

ACR, just the usual exposure, WB etc and then brought into photoshop.

At this point I usually examine the image and see if there is any cloning or dust removal necessary and it is then done on a seperate layer.

Next, I will determine if there is any noise reduction to be done and this could be done in a variety of ways including using edge masks etc.

Finally, I use photokit sharpener and do an input sharpen as necessary, again with masks etc if necessary.

After this point, I will do the usual adjustment layers, local contrast enhancement, saturation etc, until I am happy with the overall image.

At this point I will do creative sharpening again with a variety of possible tools until I am happy.

So, I now have a number of layers and am ready for the final crop and uprezzing to my final print size. I usally do this at the last stage so that I can always change this if necessary. Of course, all of the adjustments are still available since I am using layers as much as possible.

However, I have pretty well determined that the quality of uprezzed images are much better if you uprez before you do anything else (except maybe noise reduction). I found this from comparing images with and without processing on a 4 times enlargement.

So here lies the question: If you crop and uprez before any processing, you are then stuck with having to do all of the whole procedure over if you wish to change crop or output.

Any ideas for the best of both worlds?

Thanks!


Jan 15, 2008 at 05:57 PM
Duncan Staples
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p.1 #2 · CS3 Up-rezzing Guru's needed!


Use Genuine Fractals Print Pro prior to sharpening but after all else. This will allow you to make changes with the exception of sharpening.

Duncan

Jan 15, 2008 at 08:36 PM
tomb18
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p.1 #3 · CS3 Up-rezzing Guru's needed!


Ya, but the sharpening step could be the longest process of all!



Jan 15, 2008 at 11:24 PM
Duncan Staples
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p.1 #4 · CS3 Up-rezzing Guru's needed!


I print 60" prints on a daily basis and it takes maybe 1 to 1.5 minutes to run the PK Sharpener (smart sharpen) at 240ppi on a 1.4GB file. 2.66Ghz MacPro with 8GB RAM - SATA RAID 0.

You have to run sharpening after Interpolation to avoid a ton of problems.

Duncan

Edited on Jan 16, 2008 at 12:01 AM


Jan 15, 2008 at 11:57 PM
Mr Mouse
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p.1 #5 · CS3 Up-rezzing Guru's needed!


tomb18 wrote:
However, I have pretty well determined that the quality of uprezzed images are much better if you uprez before you do anything else (except maybe noise reduction). I found this from comparing images with and without processing on a 4 times enlargement.

Surely something one does will suffer if they are up sized latter however I find your statement to general and a bit hard to believe.

Jan 16, 2008 at 01:48 AM
camey
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p.1 #6 · CS3 Up-rezzing Guru's needed!


Qimage is probably the best program for upscaling before printing. I've done comparisons with Photoshop CS3/Bicubic and Qimage's Pyramid scaling and Qimage wins hands down. The latest versions use even more advanced algorithms. Qimage also does the final sharpening before printing.

http://www.ddisoftware.com/qimage/

Have a look on the luminous landscape printing forums, where half the people there are using 24-44" printers and most of them seem to use Qimage (even though they own CS3, Lightroom etc.). That should telly you something.

Jan 17, 2008 at 12:38 AM
tomb18
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p.1 #7 · CS3 Up-rezzing Guru's needed!


Mr Mouse wrote:
tomb18 wrote:
However, I have pretty well determined that the quality of uprezzed images are much better if you uprez before you do anything else (except maybe noise reduction). I found this from comparing images with and without processing on a 4 times enlargement.

Surely something one does will suffer if they are up sized latter however I find your statement to general and a bit hard to believe.


You're right, this is not be the case with all enlargments. But for the poto I tried it did make a big difference.
Why don't you give it a whirl?


Jan 17, 2008 at 01:17 AM
palexy
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p.1 #8 · CS3 Up-rezzing Guru's needed!


Another vote for Qimage. I rarely do anything other than let Qimage use its "smart sharpening" and the interpolations within Qimage for 16x20 prints that look great.

Jan 17, 2008 at 02:11 PM
davekone
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p.1 #9 · CS3 Up-rezzing Guru's needed!


Another bit vote for Qimage Pyramid with smart sharpening turned on for final print. Pyramid does a wonderful job scaling images up.

I also have large prints that Duncan did using Genuine Fractals and they look amazing as well.

Edited on Jan 17, 2008 at 11:06 PM


Jan 17, 2008 at 11:06 PM
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