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FORUMS Post Processing, Marketing & Presenting Photos RAW, Post Processing & Printing 
Thread started 09 Feb 2015 (Monday) 12:46
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need more pixels!!

 
DZsomerset
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Feb 09, 2015 12:46 |  #1

Hi all!!
I have an older client coming back for a 20x24 of an image from my old camera. It is roughly 3500x2300... not enogh to make a good image. Does anyone have any experience here? I have heard of genunie fractal software but I am not sure if this will do the trick, or if there is other software??...help I need a simple solution asap. Any ideas???
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ericcrazyman
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Feb 09, 2015 12:50 |  #2

I have this genunie fractal software. It does a good job of increasing size. If your file is nice and sharp it will give you a nice file for printing.


A photograph is worth a thousand words, but Photoshop can produce a thousand lies. Photo editing allowed. I need all the help I can get.

  
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nqjudo
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Feb 09, 2015 12:54 |  #3

onOne Perfect Resize or plain old PS should do nicely.


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kirkt
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Post edited over 4 years ago by kirkt. (3 edits in all)
     
Feb 09, 2015 13:00 |  #4

Read this first:

http://www.northlight-images.co.uk …int_viewing_dis​tance.html (external link)

to consider how many pixels you need for your print. A good approximation of a reasonable print viewing distance is about one to one and a half times the diagonal of the printed image dimension, or about 30"-45" for your 20"x24" print - equating to a print resolution of about 200ppi, according to the table in the article. This equates to an upres of your 3500x2300 pixel image to about 4800 pixels along the long edge, or about 1.4 times. You should be able to achieve this in Photoshop or Lightroom, for example.

kirk


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Scatterbrained
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Feb 09, 2015 13:05 |  #5

kirkt wrote in post #17423798 (external link)
Read this first:

http://www.northlight-images.co.uk …int_viewing_dis​tance.html (external link)

to consider how many pixels you need for your print. A good approximation of a reasonable print viewing distance is about one to one and a half times the diagonal of the printed image dimension, or about 30"-45" for your 20"x24" print. This equates to an upres of your 3500x2300 pixel image to about 4800 pixels along the long edge, or about 1.4 times. You should be able to achieve this in Photoshop or Lightroom, for example.

kirk

Meanwhile every print hanging in my house is about head height and people will put their face right up against the images if they can. ;)


As far as upscaling software outside of Ps and Lr, I use Perfect Resize, which is the software that used to be known as Genuine Fractals.


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nathancarter
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Post edited over 4 years ago by nathancarter.
     
Feb 09, 2015 13:57 |  #6

The short edge is your constraint: 2300 pixels for 20 inches is 115 pixels per printed inch. So, you don't have a ton of scaling up to do. Depending on the print medium and the subject matter, 150DPI is probably enough, and maybe 115 DPI is already enough - especially if you're printing on a textured surface like canvas. Photoshop should get you there just fine, or OnOne Perfect Resize (formerly known as Genuine Fractals in previous versions) will do too.

I personally just had a bunch (sixteen) of portrait prints done on glossy vinyl mounted to foamcore, at 18x24. The print service recommended 150DPI, and I was skeptical but that's what I sent them - and they turned out great. Even inspecting up-close with a photographer's scrutinous eye, there was no pixelation or graininess or blurriness.

Perhaps just as important at the issue of scaling up: you're going to have to crop the length down from the approximate 3:2 ratio of your current image. 20x24 is almost square, by comparison.


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need more pixels!!
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