Re: [Gimp-user] Large XCF filesize
> Sent: Friday, June 14, 2019 at 6:28 AM > From: "Johannes Bauer" > To: gimp-user-list@gnome.org > Subject: Re: [Gimp-user] Large XCF filesize > > On 13.06.19 22:25, Johannes Bauer wrote: > > > I've recently created an XCF template file that almost only contains > > large slabs of solid colors (i.e., no "picture"), couple of layers and > > layer masks. I was surprised to find that the XCF compressed this rather > > poorly, even though this should be an ideal case for lossless compression. > > Sigh! > > *Of course* I forgot to include the link to the image. Here it is: > https://github.com/johndoe31415/german-biometric-passport/blob/master/template.xcf Well, I opened that and then saved it as a .xcf.bz2 file and it was 10% of the original. Pretty reasonable to me? Owen ___ gimp-user-list mailing list List address:gimp-user-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list List archives: https://mail.gnome.org/archives/gimp-user-list
Re: [Gimp-user] System Requirements
On 6/10/19 3:26 AM, WIlliam Round via gimp-user-list wrote: I have Been looking for information on the basic system requirements for using gimp. I have been looking at the gimp web site and trying to find information on what would be a starting point for the system since I am looking at purchasing a new computer. This would be my play computer so I would use it for various things but I do do a lot of photo editing using gimp and would like to make sure it worked properly. I saw information on adjusting the cashe and file swap but I couldn't find anything on system requirements. Is there a link to that information that will help me in deciding on a new computer? Thanks for any assistance you can provide. Depends a lot on usage. If you are editing the usual 20-30Mpix pictures then the average system with 8GB RAM is going to be fine. Of course if you do gigantic panoramas you'll have to get more RAM. Given the choice, prefer a processor with few fast cores to a processor with a lot of slow cores. If a laptop useful things are * a built-in SD card reader (but it should work at USB3 speeds...) * a decent screen (IPS screens normally have a better color response) No need for a high-performance graphics card ___ gimp-user-list mailing list List address:gimp-user-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list List archives: https://mail.gnome.org/archives/gimp-user-list
Re: [Gimp-user] Large XCF filesize
On 13.06.19 22:25, Johannes Bauer wrote: > I've recently created an XCF template file that almost only contains > large slabs of solid colors (i.e., no "picture"), couple of layers and > layer masks. I was surprised to find that the XCF compressed this rather > poorly, even though this should be an ideal case for lossless compression. Sigh! *Of course* I forgot to include the link to the image. Here it is: https://github.com/johndoe31415/german-biometric-passport/blob/master/template.xcf Sorry about this. All the best, Johannes ___ gimp-user-list mailing list List address:gimp-user-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list List archives: https://mail.gnome.org/archives/gimp-user-list
[Gimp-user] Large XCF filesize
Hi there,
I've recently created an XCF template file that almost only contains
large slabs of solid colors (i.e., no "picture"), couple of layers and
layer masks. I was surprised to find that the XCF compressed this rather
poorly, even though this should be an ideal case for lossless compression.
In an attempt to reduce the file size, I cropped one of the layers
("Bildrahmen") which was originally the entire image size, to only the
visible area using Layer -> Crop to Content. I would have expected that
this definitely reduces the size since it needs to compress less pixels
and stores a fixed layer offet. To my surprise, the XCF filesize even
increased. I.e., with the full layer it's 1139339 bytes (2.8
compression) and with the cropped layer it jumps to 1156758 bytes long.
Note that when using 2.10 compression, this effect is reversed (i.e., as
you'd expect it to behave).
Considering that layer masks usually contain large slabs of "all white"
or "all black" pixels, shouldn't XCF be able to compress these rather
well, i.e., be optimized for this? I'm quite curious as to what the
reason for the large filesize is.
Also note that when I gzip the XCF, it compresses by a factor of 1:10,
i.e., from about 1 MB down to about 105 kB, which seems much more
reasonable.
If you have insights to this, I'd be happy to learn what's going on there.
All the best,
Johannes
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[Gimp-user] Gimp displays photos with white background, even though they should be transparrent
>Hello! >I have a problem and someone can help me out. >The tif photos are without background (transparent) and are shown as >such in photoshop. However, when I open them in gimp they are >displayed with a white background. >How is this possible and is there a fix? PS uses a non-standard feature called a 'clipping path' You can this find in jpegs and tiffs formats that do not usually support transparency. Usually meant for some sort of desktop publishing application. The PS clipping path can be created two ways. If you are lucky, there will be a path in the paths dialogue. Make sure the image has an alpha channel. Make a selection from path (might need to invert it). Delete the selection. If you are unlucky, it has been made for use in some other PS application such as Illustrator. No path, not much you can do with it, except remove the white background. Various ways, depends on the image. -- rich404 (via www.gimpusers.com/forums) ___ gimp-user-list mailing list List address:gimp-user-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list List archives: https://mail.gnome.org/archives/gimp-user-list
Re: [Gimp-user] Gimp displays photos with white background, even though they should be transparrent
Hi, On Thu, 13 Jun 2019 11:02:00 +0200 Allcollect wrote: > Hello! > I have a problem and someone can help me out. > The tif photos are without background (transparent) and are shown as such in > photoshop. However, when I open them in gimp they are displayed with a white > background. > How is this possible and is there a fix? > 1. Does this happen with transparent .pngs too (e.g: https://www.shlomifish.org/me/images/EvilPHish-Icon/evilphish-extract-no-glow-250x250.png )? 2. Can you share a problem tiff file? 3. Which gimp version on which OS? -- - Shlomi Fish http://www.shlomifish.org/ What Makes Software Apps High Quality - http://shlom.in/sw-quality “God is dead.” — Nietzsche “Nietzsche is dead.” — God (Unknown Source) Please reply to list if it's a mailing list post - http://shlom.in/reply . ___ gimp-user-list mailing list List address:gimp-user-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list List archives: https://mail.gnome.org/archives/gimp-user-list
[Gimp-user] Gimp displays photos with white background, even though they should be transparrent
Hello! I have a problem and someone can help me out. The tif photos are without background (transparent) and are shown as such in photoshop. However, when I open them in gimp they are displayed with a white background. How is this possible and is there a fix? -- Allcollect (via www.gimpusers.com/forums) ___ gimp-user-list mailing list List address:gimp-user-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list List archives: https://mail.gnome.org/archives/gimp-user-list
