22
Replies
The Adobe employee already tried everything possible with the GPU, but he couldn’t trace the problem back to that.
By @anton_7599
I suggest that you try this yourself, and make sure to view the image at 100%. (not just zoomed in, but at exactly 100%)
In Photoshop, go to the menu item Preferences > Performance (I believe it's in the Photoshop menu on a Mac), and uncheck Use graphics processor. Then (still in Photoshop) go to Preferences > Camera Raw, go to the Performance tab, set Use graphics processor to Custom, then uncheck Use GPU for image processing.
Now restart Photoshop to be absolutely certain that the changes are applied.
If images now display identically at 100% in both applications, enable the GPUs (one at a time, followed by a PS restart) to establish which one is the culprit. Let us know how it goes.
The screenshot shows that you're viewing at 55.1%.
As I have said previously, you must view both images at 100%. Any other view will be inaccurate and misleading.
In the future, please do not attach screenshots, use the Insert Photos button in the toolbar to embed them in your post.
You have to view the tiff at 100% as well.
This is how digital images work – you cannot expect everything to display correctly at other magnifications than 100%.
Sharpness, noise, chromatic aberration, moiré – and gradients – must be viewed at 100%.
When an image is scaled, it gets resampled, and the resampling will change the appearance of image detail.
Each application does this in its own way, so when viewing an image in different applications at the same magnification (other than 100%), it will not display the same in all the applications.
At 100% view, all applications (even basic image viewers) will display identically.
Thanks and sorry for using the insert button wrong. i didnt know better,
By @anton_7599
This is not your fault - blame the designers of the forum software.
There's a very prominent Attach feature that encourages users to attach images, which makes it very awkward for other users to view them.
I'm not familiar with White wall (or any other printing service) - I do my own printing.
However, for the highest quality print, prepare the tiff at the exact printing dimensions, so that it will not be scaled in the printer driver.
You can save a tiff directly from ACR (Adobe Camera Raw), which has the advantage that you can apply output sharpening when saving. If you need to do edits in Photoshop, open it full size, and after editing, open the image in the Camera Raw filter (Filter > Camera Raw filter). This has the same editing tools as ACR, but is for rendered (non-raw) files.
You get the same Save options as in ACR, and can add output sharpening.
You can experiment with different sharpening settings – go back in History and run the filter again with different settings.
Remember to view the image at 100% to evaluate sharpening.
If you do the sharpening on a copy of the background layer, you can reduce the opacity of the sharpening layer to fine tune the sharpening.
I opened your screenshots in Photoshop, and there is indeed a difference.
It seems that the embedded profile is the monitor profile, which is not recommended.
If you have set the monitor profile as your RGB working space, this will disable color management, and might well be the cause of the problem.
Please post a screenshot of your Photoshop color settings. (Edit > Color settings)
I opened your screenshots in Photoshop, and there is indeed a difference.
It seems that the embedded profile is the monitor profile, which is not recommended.
By @Per Berntsen
If these are pure screen shots from a Mac, the embedded profiles are as expected (that is, not wrong). At least when using the macOS built-in screen capture feature, macOS embeds the current display profile in the screen shot. This makes sense, because the display profile lets an application know exactly what RGB color gamut the screen shot was made in (it was the gamut described by that display profile), and that makes it easy to convert the screen shot to something standard such as sRGB.
Of course, the fact that the macOS default screen shot embedded color profile is the display profile means it only tells you about the screen shot, and not anything about the profiles embedded in whatever documents are being viewed. To find that out, see what profile is shown when Document Profile is enabled in the Photoshop document status bar, or in the Info panel.
Finally, if the documents already have an embedded color profile, it won’t matter what the Photoshop color settings are, because the Color Settings are just defaults for when a document has no embedded profile, or for a conversion. If the documents already have embedded profiles then Photoshop will not apply the Color Settings working spaces, it will use the profiles the documents already have. And when a document is opened straight out of Camera Raw as these are, it always has an embedded profile (whichever profile is set in Camera Raw preferences, Workflow / Color Space).
AdChoices
