Hi,

On Sat, Nov 29, 2008 at 7:39 AM, smith wrote:

I've noticed this on multiple occasions that when I scale pictures down in Photoshop they look noticeably better when I do the same in Gimp. The scaled down image PS leaves is sharp and crisp, while the Gimp scaled down is more blurry.

You have omitted to mention what scaling method you used in PS and Gimp respectively.
Without this information, I can't help you with this problem.

David

After scaling down an image you have to use the filter USM (unsharp mask) to sharpen your image. You did not mention if you did so.
Ruud> To: gimp-user@lists.XCF.Berkeley.EDU> From: forums@gimpusers.com> Date: Fri, 28 Nov 2008 22:09:34 +0100> Subject: [Gimp-user] PS scaling looks noticeably better then Gimp's> > I've noticed this on multiple occasions that when I scale pictures down in> Photoshop they look noticeably better when I do the same in Gimp. The scaled> down image PS leaves is sharp and crisp, while the Gimp scaled down is more> blurry. > > Does anybody know why this is the case and if there is any setting I am> missing that would improve the quality of pictures when they they get scaled> down (this is especially true for scaled down fonts that were flattened and> unrecoverable).> > > -- > smith> _______________________________________________> Gimp-user mailing list> Gimp-user@lists.XCF.Berkeley.EDU> https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user __________________

Hi,

On Sun, Nov 30, 2008 at 6:21 AM, Ruud Amesz wrote:

After scaling down an image you have to use the filter USM (unsharp mask) to sharpen your image. You did not mention if you did so.

Are you saying that Photoshop automatically does that when you scale down?

David

>I've noticed this on multiple occasions that when I scale pictures down in>Photoshop they look noticeably better when I do the same in Gimp. The scaled>down image PS leaves is sharp and crisp, while the Gimp scaled down is more>blurry. Could you provide a detail of an image? E.g. scale it with photoshop telling us the method, then with gimp always with the method used, and put it ( or a crop ) of both on imageshack? And also tell us the original size of the image, and what kind of scale you have used ( eg. from 2048 to 800 )I have noticed too, comparing results with a friend of mine, somethings similar, gimp often produces more moirè effect.Btw, 2.6.2 has some problems scaling down an image, use 2.6.3 .Bye.

----------------------------------------------------------------------------Vuoi essere presente online? Vuoi dare voce alla tua attivita`? Acquista un dominio su domini.interfree.it.A partire da 18,59 euro----------------------------------------------------------------------------

Hi,

On Sun, 2008-11-30 at 08:43 +1030, David Gowers wrote:

Hi,

On Sun, Nov 30, 2008 at 6:21 AM, Ruud Amesz wrote:

After scaling down an image you have to use the filter USM (unsharp mask) to sharpen your image. You did not mention if you did so.

Are you saying that Photoshop automatically does that when you scale down?

They are probably not really applying unsharp mask, but there are interpolation methods that do something similar. The Lanczos method in GIMP has this quality. The Sinc kernel used for interpolation works somewhat similar to what Unsharp Mask does. Still it is sometimes necessary to do additional sharpening after scaling.

Sven