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Re: Help! enlarging photos

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Posted by Joshua on March 25, 1997 at 17:48:47:

In Reply to: Re: Help! enlarging photos posted by Bill Smith on January 19, 1997 at 05:10:24:

: : : I need to blow up a photo to 13.5 inches by 8.2 inches. It is saved as a bitmap at 5.3 inches by 3.5 inches with 72 resolution and as a tiff at 1.28 inches by .853 inches with 300 resolution. Every time I enlarge it, it pixelates. I have tried increasing the resolution through Photoshop with no success. What am I doing wrong? Thanks for your help.

: : Hi Teresa.

: : Without knowing more about your circumstances, I'd
: : say that you aren't doing anything WRONG -- you're
: : just asking way too much of your software. You'll get
: : pretty good results resampling in Photoshop up to
: : twice the size of the original image (e.g., a TIFF
: : 1.28 inches by .853 inches with 300 resolution to
: : one which is 2.56 by 1.706 inches with 300 resolution.

: : Beyond that and quality will suffer. And to go all the way
: : from 1.28 inches to 13 inches via interpolation is extreme.

: : Is there any way to get hold of the original and rescan it
: : at the proper size/resolution? That's what you really need
: : to solve your problem.

: : Danny

:
: Couldn't agree more. Make sure to keep the aspect ratio the same as the original and it will help a bit, but basically it can't be done to the extent you want.
: Perhaps and I stress perhaps it can be done through fractal imaging

Joshua:

Is the photo really complex. You could always vectorize it! Now it is rather tedious and the end result will look more like an illustration than a photo. Some programs like Corel Draw have auto trace features which allow you to draw vector shapes over defined patches of color in a photo. Or if you just have a small vector program that at the very least supports beziere curves, then you can manually fix shapes to the patches of color. Another option is to save it at what ever resolution would be acceptable and then import it into a DTP or illustrtion program. Select it and resize it with the mouse all the while holding down alt + shift.

Follow Ups:

I will send a copie of photoshop to you if you would like. Joey 04:30:16 11/15/98 (6)
- Re: I will send a copie of photoshop to you if you would like. Joey 04:32:28 11/15/98 (5)
  - Re: I will send a copie of photoshop to you if you would like. lallemand 14:33:10 4/20/2001 (0)
  - Re: I will send a copie of photoshop to you if you would like. blue 00:00:12 8/25/2000 (0)
  - Re: I will send a copie of photoshop to you if you would like. w.va 20:49:55 2/04/2000 (0)
  - Re: I will send a copie of photoshop to you if you would like. w.va 20:48:05 2/04/2000 (1)
    - Re: I will send a copie of photoshop to you if you would like. KENNETH HAMILTON 11:06:55 1/20/2001 (0)

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: : : : I need to blow up a photo to 13.5 inches by 8.2 inches. It is saved as a bitmap at 5.3 inches by 3.5 inches with 72 resolution and as a tiff at 1.28 inches by .853 inches with 300 resolution. Every time I enlarge it, it pixelates. I have tried increasing the resolution through Photoshop with no success. What am I doing wrong? Thanks for your help. : : : Hi Teresa. : : : Without knowing more about your circumstances, I'd : : : say that you aren't doing anything WRONG -- you're : : : just asking way too much of your software. You'll get : : : pretty good results resampling in Photoshop up to : : : twice the size of the original image (e.g., a TIFF : : : 1.28 inches by .853 inches with 300 resolution to : : : one which is 2.56 by 1.706 inches with 300 resolution. : : : Beyond that and quality will suffer. And to go all the way : : : from 1.28 inches to 13 inches via interpolation is extreme. : : : Is there any way to get hold of the original and rescan it : : : at the proper size/resolution? That's what you really need : : : to solve your problem. : : : Danny : : : : Couldn't agree more. Make sure to keep the aspect ratio the same as the original and it will help a bit, but basically it can't be done to the extent you want. : : Perhaps and I stress perhaps it can be done through fractal imaging : Joshua: : Is the photo really complex. You could always vectorize it! Now it is rather tedious and the end result will look more like an illustration than a photo. Some programs like Corel Draw have auto trace features which allow you to draw vector shapes over defined patches of color in a photo. Or if you just have a small vector program that at the very least supports beziere curves, then you can manually fix shapes to the patches of color. Another option is to save it at what ever resolution would be acceptable and then import it into a DTP or illustrtion program. Select it and resize it with the mouse all the while holding down alt + shift.

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