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Old Dec 5, 2005, 9:01 AM   #1
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Is it better to enlarge in the camera by digital zoom or

enlargein the computer in Photo shop.
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Old Dec 5, 2005, 2:41 PM   #2
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moorepoppoppy wrote:
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Is it better to enlarge in the camera by digital zoom or

enlargein the computer in Photo shop.

PS. Use bicubic smoother for enlarging, especially if using PS CS or PS CS2
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Old Dec 5, 2005, 3:55 PM   #3
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moorepoppoppy wrote:
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thanks brian but what is bicubic smoother

moorepoppoppy

Duh!! Sorry, would have been nice of me to explain further. I am getting old, you have to forgive me sometimes...LOL

In Photoshop, the program allows you to use interpolation to increase the size of an image when upsizing. Under the EDIT>image size menu, at the bottom of the window there will be a drop down window that will allow you to resample using bicubic smoother, sharper, etc.

Per Katrin Eismann, she recommends using Photoshop CS to increase size using the resampling option of Bicubic Smoother whenever UPSIZING.

Hope that helps.
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Old Dec 5, 2005, 3:55 PM   #4
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moorepoppoppy wrote:
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thanks brian but what is bicubic smoother

moorepoppoppy
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Old Dec 5, 2005, 4:01 PM   #5
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thanks brian but what is bicubic smoother

moorepoppoppy
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Old Dec 5, 2005, 10:33 PM   #6
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There are better upsample methods IMO.

One is to upsample in 2% or 5% increments (Stepped Interpolation or SI). 5% is better if you have limited RAM – 2% isn't that much better but takes longer. I use 2% and have an action with five 2% increases and another action with four of the first action. You can get pretty close. There is no need to shoot for an exact size for printing as it is impossible to get an exact size that the spooler won't have to resample anyway.

Another is Genuine Fractals, which has been bundled with some equipment and software. Otherwise you have to buy it. Qimage also has an improved interpolation method but I haven't tried it.

Edit: I think bicubic smoother is available in Photoshop CS or higher.


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Old Dec 6, 2005, 2:04 AM   #7
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Thank you for your explanation.I too am getting old & have recently had a stroke

& and have a short term memory loss.Thanks again
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Old Dec 6, 2005, 3:35 AM   #8
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Thanks Slipe

Very well explained.
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Old Dec 6, 2005, 12:40 PM   #9
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slipe wrote:
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There are better upsample methods IMO.

One is to upsample in 2% or 5% increments (Stepped Interpolation or SI). 5% is better if you have limited RAM – 2% isn't that much better but takes longer. I use 2% and have an action with five 2% increases and another action with four of the first action. You can get pretty close. There is no need to shoot for an exact size for printing as it is impossible to get an exact size that the spooler won't have to resample anyway.

Another is Genuine Fractals, which has been bundled with some equipment and software. Otherwise you have to buy it. Qimage also has an improved interpolation method but I haven't tried it.

Edit: I think bicubic smoother is available in Photoshop CS or higher.

Slipe,

Yes, bicubic smoother is available in Photoshop CS and CS2.

Also, just so that you know, per Katrin Eismann's, Photoshop has done a wonderful job with their new algorithums so it is no longer necessary to "step up" in 10% increments. You can now increase whatever size you want, without the step up needed.

Of course, some will still argue that Genuine Fractals is a better program for upsizing anyway......LOL. Since I have NO knowledge with Geniune Fractals, I can not speak for that program.


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Old Dec 6, 2005, 3:11 PM   #10
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This is an interesting tutorial on upsizing: http://www.outbackphoto.com/workflow/wf_60/essay.html It isn't intuitive, but SI was always counterintuitive to me. He has a free filter to do the process at the end of the article. Since it uses both bicubic smoother and bicubic sharper I assume you need CS or higher.

I never found 10% increments to be of much value. Genuine Fractals was better than 10% from my experience.


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