resampling issue

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Posted By
Herzog
Nov 19, 2007
Views
415
Replies
5
Status
Closed
Hi all,
a question… in photoshop, even the latest CS3, you cannot see correctly an image if it’s not zoomed at 100% or some x2 or /2 multipliers (25%, 50%, 200% and so on).
I think i’m missing something, it’s really nonsense that i cannot view an image with good sampling at 65 % zoom, as example.
By now at these "odd" zxoom values, images have pretty bad sampling and look very aliased. Is there something i could tweak to resample the image whichever zoom i use ?

thanks,
H
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pico
Nov 19, 2007
"Herzog" wrote in message
Hi all,
a question… in photoshop, even the latest CS3, you cannot see correctly an image if it’s not zoomed at 100% or some x2 or /2 multipliers (25%, 50%, 200% and so on).
I think i’m missing something, it’s really nonsense that i cannot view an image with good sampling at 65 % zoom, as example.
By now at these "odd" zxoom values, images have pretty bad sampling and look very aliased. Is there something i could tweak to resample the image whichever zoom i use ?

There is nothing you can do as an instant preview using the zoom feature. You can make a 65% (for example) downsample then view it at 100% to see the proper outcome. The reason for this is the pixel mismatch of zooming a full image into a grid that doesn’t fit it.

Resample, look, undo if you don’t like the outcome.
H
Herzog
Nov 21, 2007
"pico" <pico.pico.pico> ha scritto nel messaggio
There is nothing you can do as an instant preview using the zoom feature. You can make a 65% (for example) downsample then view it at 100% to see the proper outcome. The reason for this is the pixel mismatch of zooming a full image into a grid that doesn’t fit it.

Resample, look, undo if you don’t like the outcome.

exactly… but it’s uttely absurd that a software like Photoshop doesnt allow a better preview if needed.
It would be pretty easy to have an option to get resampling (just like XP’s previewer, nothing difficult at all to code) at every zoom… this way i’m forced to work in 100 or x2 /2 zoom ratios. I hate this behavior since PS4, it’s time for me to wrte down some lines to Adobe i gues…

bye
Paolo
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Tacit
Nov 21, 2007
In article <InT0j.6293$>,
"Herzog" wrote:

exactly… but it’s uttely absurd that a software like Photoshop doesnt allow a better preview if needed.

Actually, it’s not.

You probably use Photoshop for light or hobbyist use, with teeny files like the files you get from a digital camera. For that kind of use, yeah, Photoshop could reasonably interpolate a better-quality preview.

But don’t forget that Photoshop is a tool aimed primarily at high-end, professional prepress use. I routinely work with Photoshop images that are hundreds of megabytes in size. On some occasions, I work with large files (such as advertising posters and subway billboards) that may be over a gigabyte in size. If I zoom out and wait for Photoshop to create a high-quality preview of such a large image, it might take several minutes for Photoshop to redraw the screen. That is unacceptable.

—
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Toke Eskildsen
Nov 22, 2007
tacit wrote:
But don’t forget that Photoshop is a tool aimed primarily at high-end, professional prepress use. I routinely work with Photoshop images that are hundreds of megabytes in size.

PhotoShop is Adobe’s catch-all raster graphical editor for professional use and as such a better preview would be a very welcome thing for a substantial part of the user group.

Herzog stated it quite well: "If needed". A check for image size is trivially simple to implement, so you wouldn’t get the fine preview with your gigabyte files.
—
Toke Eskildsen – http://ekot.dk/
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Herzog
Nov 23, 2007
"tacit" ha scritto nel messaggio
Actually, it’s not.
You probably use Photoshop for light or hobbyist use, with teeny files like the files you get from a digital camera. For that kind of use, yeah, Photoshop could reasonably interpolate a better-quality preview.

eheheh… it’s not the case.
I’m a 3D viz professional and averagely i make a pretty extensive usage of PS for textures, layering, final editing.
With non huge pics, less than dozens layers, and for simple tasks like color editing and such (no painting or layer deformation) i guess an average today’s machine could handle interpolation in near-realtime, *as option*. Time for Adobe to move on this, imho.

H

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