Leonard Rosenthol wrote:
At 3:33 PM -0400 8/14/03, Carol Spears wrote:
So this combination would answer your LAB & CMYK issues and possibly
my need to use a greater than 256 color palette then?
No, it would not.
ICC profiling is a VERY different thing that actual "raw" CMYK or
Lab da
At 2:13 PM -0700 8/14/03, Manish Singh wrote:
> Never implemented a file format, have you ;).
What widely used formats have you implemented? :)
Well, let's see...
I'm responsible for the design & implementation of the
StuffIt archive file format (.sit), MacBinary III, AppleSingle &
AppleDoub
From: Leonard Rosenthol <[EMAIL PROTECTED]>
To: Nathan Carl Summers <[EMAIL PROTECTED]>
CC: The Gimp Developers' list <[EMAIL PROTECTED]>
Subject: Re: [Gimp-developer] GimpCon RFC: Portable XCF
Date: Wed, 20 Aug 2003 10:40:51 -0400
At 8:45 AM -0700 8/12/03, Nathan Car
On Thu, Aug 21, 2003 at 01:38:01AM -0400, Leonard Rosenthol wrote:
> At 8:12 PM -0700 8/13/03, Manish Singh wrote:
> >On Wed, Aug 20, 2003 at 10:53:14PM -0400, Leonard Rosenthol wrote:
> > > At 6:51 PM -0700 8/13/03, Manish Singh wrote:
> >> >Does TIFF support, for example, float16 data, or a CIE X
At 9:33 PM -0400 8/13/03, Carol Spears wrote:
The last time I got the mng libraries, they came along with liblcms.
Are you sure that liblcms does not do all of this?
A quick reread of the PNG/MNG format reveals that you can use
ICC profiles, but NOT CMYK, Lab or other color spaces. That's why
On Wed, Aug 20, 2003 at 10:53:14PM -0400, Leonard Rosenthol wrote:
> At 6:51 PM -0700 8/13/03, Manish Singh wrote:
> >Does TIFF support, for example, float16 data, or a CIE XYZ colorspace?
>
> Yes to both...
Hmm, got a reference to that? It wasn't immediately apparent in my reading
of the
At 8:12 PM -0700 8/13/03, Manish Singh wrote:
On Wed, Aug 20, 2003 at 10:53:14PM -0400, Leonard Rosenthol wrote:
> At 6:51 PM -0700 8/13/03, Manish Singh wrote:
>Does TIFF support, for example, float16 data, or a CIE XYZ colorspace?
Yes to both...
Hmm, got a reference to that? It wasn't immedia
On Thu, Aug 21, 2003 at 10:16:13AM -0400, Leonard Rosenthol wrote:
> At 11:42 PM -0700 8/13/03, Manish Singh wrote:
> >Supports IEEE floats, but not float16 (a 32-bit float cut in half). R&H
> >added this to filmgimp since they had established this format in their
> >workflow with other tools alrea
Carol Spears wrote:
However, I read recently about artifacts appearing in compressed pngs,
so this might not be the miracle fix I had hoped for.
!!!
Where did you see that?
PNG uses a lossless compression scheme - if there are 'artifacts' in the
image that were not there when the image was give
At 11:42 PM -0700 8/13/03, Manish Singh wrote:
Supports IEEE floats, but not float16 (a 32-bit float cut in half). R&H
added this to filmgimp since they had established this format in their
workflow with other tools already.
Why would you only use half of a 32bit float?? That reduces
your accura
Leonard Rosenthol wrote:
At 8:26 PM -0400 8/13/03, Carol Spears wrote:
What about mng? It contains png and has layers and comments.
Yes, but still has the limitations of no-CMYK (Lab, ICC, etc.)
colorspaces (among other things) out of the box...
Has anyone considered going to the PNG maint
At 6:51 PM -0700 8/13/03, Manish Singh wrote:
Does TIFF support, for example, float16 data, or a CIE XYZ colorspace?
Yes to both...
I'm somewhat concerned with going with an externally standardized format,
then running into a wall with it at some later point, and not being able
to add a feature
On Thu, Aug 21, 2003 at 01:33:50AM -0400, Leonard Rosenthol wrote:
> >why would i want to save to a file format that would render my image
> >that's built up of layer masks and vector text layers really badly
> >if opened in a standard viewer
>
> Because at least you COULD open it up in a
On Sat, 9 Aug 2003, Leonard Rosenthol wrote:
> >I see fast loads as an absolute requirement.
>
> Then we need to also look at the GIMP itself and what can be
> done there.
Of course.
> >Hopefully, GIMP's file handling will improve to the point where it will
> >load thing on an as-needed ba
At 3:33 PM -0400 8/14/03, Carol Spears wrote:
So this combination would answer your LAB & CMYK issues and possibly
my need to use a greater than 256 color palette then?
No, it would not.
ICC profiling is a VERY different thing that actual "raw"
CMYK or Lab data...
Paletizing of an image is a
On Wed, 13 Aug 2003 23:42:36 -0700, Manish Singh <[EMAIL PROTECTED]> wrote:
> On Thu, Aug 21, 2003 at 01:38:01AM -0400, Leonard Rosenthol wrote:
> > At 8:12 PM -0700 8/13/03, Manish Singh wrote:
> > >What's the turnaround time for that? Taking weeks or months isn't really
> > >acceptable...
> >
>
At 3:03 AM + 8/14/03, Phil Harper wrote:
the last thing Adobe wants to do is support XCF, it's a competing
format belonging to a competing(and competatively priced) app.
Actually, the fact that it comes from GIMP has NOTHING to do
with. The fact that few (if any) of theirs users are asking
From: Leonard Rosenthol <[EMAIL PROTECTED]>
To: "Phil Harper" <[EMAIL PROTECTED]>,[EMAIL PROTECTED]
Subject: Re: [Gimp-developer] GimpCon RFC: Portable XCF
Date: Wed, 20 Aug 2003 20:54:55 -0400
MIME-Version: 1.0
At 11:42 PM + 8/13/03, Phil Harper wrote:
well, it'
Leonard Rosenthol wrote:
At 6:51 PM -0700 8/13/03, Manish Singh wrote:
Does TIFF support, for example, float16 data, or a CIE XYZ colorspace?
Yes to both...
I'm somewhat concerned with going with an externally standardized
format,
then running into a wall with it at some later point, and
Leonard Rosenthol wrote:
At 9:33 PM -0400 8/13/03, Carol Spears wrote:
The last time I got the mng libraries, they came along with liblcms.
Are you sure that liblcms does not do all of this?
A quick reread of the PNG/MNG format reveals that you can use ICC
profiles, but NOT CMYK, Lab or o
On Wed, 20 Aug 2003, Leonard Rosenthol wrote:
> At 11:42 PM + 8/13/03, Phil Harper wrote:
> >well, it'd be interesting to see if Adobe added XCF to Photo$hop,
> >after all, GIMP is the competition, it wouldn't be in their
> >interests to support a multilayered image format that it controlled
>
Leonard Rosenthol wrote:
At 8:26 PM -0400 8/13/03, Carol Spears wrote:
What about mng? It contains png and has layers and comments.
Yes, but still has the limitations of no-CMYK (Lab, ICC, etc.)
colorspaces (among other things) out of the box...
The last time I got the mng libraries, they
Leonard Rosenthol wrote:
At 11:42 PM -0700 8/13/03, Manish Singh wrote:
GEGL uses XYZ as a native format.
Why? Lab is a richer model esp. for handling chromanicity and is
also a standard in the print world natively. Why limit to XYZ??
I am not sure what you mean by a "richer model." L
At 8:26 PM -0400 8/13/03, Carol Spears wrote:
What about mng? It contains png and has layers and comments.
Yes, but still has the limitations of no-CMYK (Lab, ICC,
etc.) colorspaces (among other things) out of the box...
Seems to be basically unmaintained.
PNG/MNG/JNG is fully supported and m
Phil Harper wrote:
From: Leonard Rosenthol <[EMAIL PROTECTED]>
To: Nathan Carl Summers <[EMAIL PROTECTED]>
CC: The Gimp Developers' list <[EMAIL PROTECTED]>
Subject: Re: [Gimp-developer] GimpCon RFC: Portable XCF
Date: Wed, 20 Aug 2003 10:40:51 -0400
At 8:45 AM -0700 8/12/
On Wed, Aug 20, 2003 at 08:54:55PM -0400, Leonard Rosenthol wrote:
> At 11:42 PM + 8/13/03, Phil Harper wrote:
> >as for TIFF, you wouldn't be able to do it in a standard readable TIFF,
>
> This, however, is wrong! We can represent EVERYTHING in
> GIMP today, and EVERYTHING for GEGL (
At 6:13 AM -0700 8/14/03, Nathan Carl Summers wrote:
AFAICT, there is nothing stopping Gimp developers from creating a
potatoshop plugin that can read XCF.
That is definitely true! Absolutely nothing prevents this -
and certainly sounds like a great idea for someone...
> You could get that ju
At 11:42 PM + 8/13/03, Phil Harper wrote:
well, it'd be interesting to see if Adobe added XCF to Photo$hop,
after all, GIMP is the competition, it wouldn't be in their
interests to support a multilayered image format that it controlled
by someone else(although they might support PSP, i don't
At 8:45 AM -0700 8/12/03, Nathan Carl Summers wrote:
> Not necessarily. You should be able to do it with any format
with a good catalog system, but some will be easier than others.
How would you handle resizes? Either we could do immediate compaction or
garbage collection. Both have their disa
Good to get some high-quality feedback.
On Sat, 9 Aug 2003, Leonard Rosenthol wrote:
> At 6:01 PM -0700 8/8/03, Nathan Carl Summers wrote:
> >Let us start with an existing graphics format, for inspiration if nothing
> >else.
>
> OK.
>
>
> >The format I chose is PNG, because it is arguably th
At 6:01 PM -0700 8/8/03, Nathan Carl Summers wrote:
Let us start with an existing graphics format, for inspiration if nothing
else.
OK.
The format I chose is PNG, because it is arguably the best existing
lossless portable graphics format available.
Well, I would argue that TIFF has the "crown".
At 4:37 PM -0700 8/9/03, Nathan Carl Summers wrote:
> Trees, yes - for things like layers. But why a graph??
GEGL supports graphs. If we use GEGL graphs, we'll need a representation
;)
Ah...
I haven't seen/used GEGL - just keep hearing about it here on
the list as the new "imaging engine".
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