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Author Topic: What is the correct way to upsize for Alamy?  (Read 30185 times)

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« on: June 03, 2008, 04:09 »
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I just joined and wanted to contribute. Would appreciate any help.


« Reply #1 on: June 03, 2008, 04:15 »
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i do it in a single step in photosohp -

edit > image size >

then make sure you use Bicubic Smoother

« Reply #2 on: June 03, 2008, 04:36 »
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I do the same

« Reply #3 on: June 03, 2008, 05:46 »
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Make that three for three  ;D

« Reply #4 on: June 03, 2008, 06:52 »
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You might want to use the script that's available at http://phototechniquesWiki.com for doing it.  It will calculate the exact upsize step to hit the target of 48MB.  Takes all the trial and error out of it.  :)

Oh, and it's a WIKI so if anyone wants to add any comments or suggest any alternatives/enhancements to the script go right ahead.

Steve


« Reply #5 on: June 03, 2008, 07:17 »
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Thanks for the advise  ;)

« Reply #6 on: June 03, 2008, 07:32 »
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Just to give an alternative view ...

I do it in 10% steps until I get the next size over 48MB. I've set it up as an action on one of the F keys, so I just have to keep pressing that key.

I don't know if it makes any difference. I heard somewhere that upsizing in 10% steps gives a better result, but that may just be a superstition.

Anyway, it's dead easy just pressing the key and watching the figure at the bottom left.

cphoto

  • CreativeShot.com
« Reply #7 on: June 03, 2008, 21:30 »
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Make that three for three  ;D

Make it four... never had a rejection from the default PS resize, going from 8MP to 16MP.

Now life is much easier with my 21MP camera :)

digiology

« Reply #8 on: June 04, 2008, 15:59 »
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Has anyone tried enlarging via export in Lightroom? I'm curious if it would work that well?

« Reply #9 on: June 04, 2008, 16:27 »
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My first batch was rejected cause I made it too large. My calculations were off and I produced 90MB files :-) Now my second attempt is in QC. I used 5200 pixes for longest side which gives around 51MB

« Reply #10 on: June 05, 2008, 04:09 »
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If you use the script available from the PTWiki site (http://photoTechniquesWiki.com), you can easily attach it to an action or droplet and then it's dead easy to create an upsized copy of your image at precisely 48MB.

I have an action which runs the script then saves the resultant upsized image in a 'submit to Alamy' folder.  I have created a droplet from this action.  Then when I have a batch of images ready, I just drag them (or the folder that contains them) to the droplet and photoshop does the rest for me - I end up with a folder ready to upload to Alamy.  Job done :)

« Reply #11 on: June 05, 2008, 07:50 »
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If you use the script available from the PTWiki site (http://photoTechniquesWiki.com), you can easily attach it to an action or droplet and then it's dead easy to create an upsized copy of your image at precisely 48MB.

I have an action which runs the script then saves the resultant upsized image in a 'submit to Alamy' folder.  I have created a droplet from this action.  Then when I have a batch of images ready, I just drag them (or the folder that contains them) to the droplet and photoshop does the rest for me - I end up with a folder ready to upload to Alamy.  Job done :)


Thanks for the info.
I have done an action too and works very well  ;)

« Reply #12 on: June 28, 2008, 17:49 »
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I assume above is about this image requirement from Alamy site:

"Uncompressed file sizes of between 48MB and 200MB. This means you should make your JPEG file from an 8 bit TIFF file that is at least 48MB. Our maximum size for the uncompressed file is 200MB."


I use Photoshop to downsize, and use Genuine Fractals 5 plug-in to upsize images for posters, so I figure it would make sense to use GF for Alamy images, too. 

(Obviously, I haven't even submitted my trial 4 yet. I wish I had thought about this before I put up a few timely politician and some musician editorials for sale at the micros.) 

Anyway, for those familiar with Genuine Fractals - if I were to use it for Alamy, that means, uhm, I should shoot in RAW (of course), then change the tif file from 16 to 8 bit, and then do WHAT  ??? ??? ???


« Reply #13 on: July 08, 2008, 13:58 »
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I usually upsize my 5D files with Canon DPP RAW software. In the batch window I set the longer side of the image 5020 pixels, and export that to 16 bit tiff (which is in the last stage converted to 8bit jpg in Photoshop).

« Reply #14 on: July 08, 2008, 14:05 »
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I don't know if it makes any difference. I heard somewhere that upsizing in 10% steps gives a better result, but that may just be a superstition.


That's just an old (pre-CS) Photoshop trick. With CS versions you have "bicubic smoother" that does the same job in just one step.

Anyone tried Alien Skin Blowup for Alamy? http://www.alienskin.com/blowup/

I wish the next 5D would have megapixels enough (about 16,8 mpix) for Alamy just to stop this upsizing nonsense!

Microbius

« Reply #15 on: July 14, 2008, 05:07 »
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Does the script at http://phototechniquesWiki.com work with PS CS? I get "Syntax error Line 5 -> #target photoshop"
 

« Reply #16 on: July 14, 2008, 06:41 »
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It's a script that I wrote for CS2.  Never tried it against any other version so I can't tell you if it works.  Sorry! 

Microbius

« Reply #17 on: July 14, 2008, 09:08 »
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that's ok, thanks. I'll try again if I every get round to upgrading!

« Reply #18 on: December 10, 2008, 16:54 »
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Just starting Alamy. great script Steve! very usefull.
I'll hope I'll pass the "judges".

Thanks
Patrick

« Reply #19 on: December 10, 2008, 17:18 »
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Hello everybody,

As far as I can read, many of you seems to do it in quite a hard way....?

Of course this depends intirely on each and everybody's workflow.....
I normally view my files in Bridge... double click on my RAW (NEF) witch opens the build in RAW converter in CS3. 

At this stage - as the FIRST thing, I upsize from 12 to 17.5 MP.

It seems to a general opinnion that the upsizing should take place as early as possible! And above all, before ANY post processing.

When doing like this, and I might add...  If I don't sharpen, then Alamy normally accepts the files.

If I need to sharpen a little, I normally use USM - figures 10-5-0

/Flemming

« Reply #20 on: December 10, 2008, 17:43 »
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I have decided to wait until I get my new 5D mkII and not bother upsizing.

hali

« Reply #21 on: December 10, 2008, 18:15 »
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Just to give an alternative view ...

I do it in 10% steps until I get the next size over 48MB. I've set it up as an action on one of the F keys, so I just have to keep pressing that key.

I don't know if it makes any difference. I heard somewhere that upsizing in 10% steps gives a better result, but that may just be a superstition.

Anyway, it's dead easy just pressing the key and watching the figure at the bottom left.

i am superstitious too,  ;D
seriously, i read the same thing, about 10% steps of upsizing . when i was using my 7MP camera, and first joined Alamy, that was how i upsized.  i never got a rejection.
then again, i never submitted anything that did not look good enough to be upsized .

now i have my 14MP pentax, it's much easier. not much to upsize.

« Reply #22 on: December 11, 2008, 06:49 »
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I use Genuine Fractals plugin for PS. There you can see how big will be your file when you upsize it. Also, you can add some sharpenning if needed, and it looks nice sometimes when you add a tiny bit of it. But usually it's not necessary because Genuine Frectals plugin does a really great job. I passed QC first time I applied and I used this technique.

AstburyD

« Reply #23 on: December 11, 2008, 18:46 »
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Has anyone tried enlarging via export in Lightroom? I'm curious if it would work that well?

Yes, LR works no problem. I have tried both Photoshop and Lightroom to upsize and all have been accepted by Alamy. If I don't need to do any 'extra' work then I find it quicker to do the output straight from Lightroom in fact, so this has become my preferred option.

AstburyD

« Reply #24 on: January 05, 2009, 05:49 »
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Just a quick update on the Lightroom upsizing. LR does not give any explicit interpolation options but I have just discovered that the method it uses is in fact Lanczos.
See more about Lanczos on Wikipedia: http://en.wikipedia.org/wiki/Lanczos_resampling


 

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