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03/07/2005 02:46:08 AM · #1 |
| is scaling the image?? Or should scaling it to a smaller size be last? |
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03/07/2005 02:47:19 AM · #2 |
Originally posted by RulerZigzag:
is scaling the image?? Or should scaling it to a smaller size be last? |
last
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03/07/2005 02:47:41 AM · #3 |
| If you scale first computer resources are spared from additional info. |
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03/07/2005 04:00:56 AM · #4 |
Last last last LAST!
If you scale it you're throwing away information big-time. This means that all the effects you are working with are having to do their job on a much coarser scale, and you get artefacts big-time when you do things like tweak levels and increase saturation.
Robt.
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03/07/2005 04:13:20 AM · #5 |
I save all mine for prints and whatnot, so I want to keep the full res version for my archives.....I think my G5 can handle a little 8 megapixel raw file or two.... ;)
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03/07/2005 05:54:31 AM · #6 |
Here is what I do...
Edit the nef/raw image, this transfers into PS CS as an unsaved tiff format, I edit this in PS CS and save with all layers etc in a lossless format.
Then I flatten layers, convert to 8 bit, convert to adobe RGB and save at the highest resolution .jpg file.
Then I resize and maybe use USM, convert to sRGB and save for web.
I finish with 4 saved files for each image, the original, a lossless, a high res compressed and a low res compressed for web.
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03/07/2005 06:34:04 AM · #7 |
Of course, it depends on how you are planning to use the image. That being said, I normally do the scaling as the second to last step and then do a slight sharpening after the resizing (it seems that some of the sharpness is almost always lost in the resize.)
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03/07/2005 07:15:50 AM · #8 |
The first thing to do when editing a photo is a "Save as" do you don't accidentally overwrite your original (unless you're shooting in RAW, then this isn't an issue).
In most cases your final two steps should be a resize and then usually a slight sharpen. In Photoshop CS, if you reside using "bicubic sharper" simetimes the sharpen isn't necessary.
-Tery
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03/07/2005 09:11:07 AM · #9 |
| If the only future for the photo is a web version, or you are preparing a "Basic Editing" challenge entry and a print version requires steps not allowed under those rules, it makes sense to resize a copy first. Or if only a little editing is required it doesn't really matter. But you can save yourself some work by doing as much editing as you can on the original resolution version before downsizing a copy for web publication (or upsizing a copy for printing). |
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03/07/2005 02:23:55 PM · #10 |
| Wow...what valuable Info. Thanks to all !! I sometimes scale first, sometimes scale photos last. I do notice a difference when I compared a 2 of the same photos. Just wasnt too sure, well now I am. |
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03/07/2005 02:30:49 PM · #11 |
Originally posted by dr rick:
If the only future for the photo is a web version, or you are preparing a "Basic Editing" challenge entry and a print version requires steps not allowed under those rules, it makes sense to resize a copy first. Or if only a little editing is required it doesn't really matter. But you can save yourself some work by doing as much editing as you can on the original resolution version before downsizing a copy for web publication (or upsizing a copy for printing). |
I hate to be argumentative but this bolded portion above is simply not true. It's dangerous advice. Hue/saturation, Levels, Brightness/contrast, and Curves all will introduce blocky artefacts and/or graininess into the image if used more than slightly at too low a resolution.
Robt.
Message edited by author 2005-03-07 14:31:26.
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