Maybe this is useful?
http://web.archive.org/web/20091027131421/http://geocities.com/evilsnack/matrix.htm
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, or the programmers you have?
(With the hope of turning the latter into the former.)
Nicolas Robidoux
[1]
research.cs.queensu.ca/~cisc422/2010f/readings/papers/whereAreTheSoftwareEngineersOfTomorrow.pdf
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http://www.imagemagick.org/Usage/anim_basics/#coalesce
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is a topological sort
algorithm which effortlessly leads to an easy to understand
description of the tree in list form. (This list could then be broken
up in sublists.
No doubt, Oyvind and others (including you) have better ideas.
Good luck,
Nicolas Robidoux
Apologies:
I meant acyclic digraph, not tree.
Nicolas Robidoux
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://en.wikipedia.org/wiki/Solution_stack
--
Nicolas Robidoux
https://www.ohloh.net/accounts/NicolasRobidoux
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Dear Dr. Terry:
On a more humorous note, it would appear to me that a good logo for
AdaptableGIMP would be Wilber with an eye patch, suggesting that the
main idea is to make only part of the interface visible (in a task
dependent way).
Nicolas Robidoux
Opinion:
Don't waste your time and energy on the actions of dishonest internet people.
There is a point to educating/warning/suing corporations (after all,
some level of accountability/legal responsibility is part of their
charter).
Not internet ghosts.
Nicolas Robidoux
by the display (they are to become part of the
gegl-sampler-*.c family) but if they were, this would allow any
increment in zooming, with no jump in the result (although,
probably, a jump in the display unless the speed is up to par).
Nicolas Robidoux
On Mon, Jul 19, 2010 at 6:49 PM, Bill Skaggs weska
In light of some feedback received, me and my students will be making
major changes to three of the gegl methods, so you may want to wait
until the comparisons are updated.
Nicolas Robidoux
On Fri, Jun 4, 2010 at 2:26 PM, Nicolas Robidoux
nicolas.robid...@gmail.com wrote:
To illustrate
To know which method was used to produce each image (and get runtimes
for the GEGL methods), read the KEY text file.
Nicolas Robidoux
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for the GEGL methods), read the KEY text file.
Nicolas Robidoux
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candidate methods is slower than GEGL bicubic
(upsharp, by 30%).
Nicolas Robidoux
PS
Warning: the upsize, upsmooth and upsharp samplers already in GEGL are
prototypes of the methods showcased in the above enlargement test.
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http://www.omgubuntu.co.uk/2009/11/gimp-to-be-removed-lucid.html
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product, in a common image format, that is, it corresponds to
exporting.
Nicolas Robidoux
Universite Laurentienne
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am most likely to need.
Nicolas Robidoux
Laurentian University
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Yuval Levy [0] has produced paroramic mug shots of the GIMP/GEGL
developers present at Libre Graphics Meeting 2009 in
Montreal. Everything was done with with FLOSS.
This is a still picture:
http://www.photopla.net/hugin/090509lgm03_gimp_240st.tif
This is a rotating animation:
Here's Yuval Levy's account of his experience using GIMP to produce
the panoramas:
http://panospace.wordpress.com/2009/10/13/making-the-gimp-work-for-me/
Nicolas Robidoux
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that not everything in GIMP it profiled to the bone).
(Warning: Foot in mouth ahead.)
I have the impression that the least painful way to make GEGL fast
SOON may be to build its desired API on top of VIPS.
Nicolas Robidoux
Universite Laurentienne
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I'd be happy to represent GEGL and GIMP at the GSoC 2009 Mentor
Summit.
Nicolas Robidoux
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Peter:
just for clarification: by workspaces you're referring to nip2 workspaces,
which roughly translate to GIMP compositions, correct?
Yes. (More or less, a (possibly unfinalized) tree.)
(I suppose composition sounds a little more artistic ;-)
Nicolas Robidoux
Universite Laurentienne
that using the word rendering in a menu will be
self-explanatory for non-sophisticated users when used in a save
context.
I am not sure that I have a better suggestion. Save workspace vs
Save image?
Nicolas Robidoux
Universite Laurentienne
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Nicolas Robidoux writes:
I am not sure that I have a better suggestion. Save workspace vs
Save image?
... but it makes lots of sense that the tree be saved just before
rendering unless this is overridden by the user.
Nicolas
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mod. and whether the result was finalized.
Nicolas Robidoux
University Laurentienne
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Nicolas Robidoux writes:
The additional command may be required anyway as a means to reduce file
size by dropping some non-destructiveness. See last image in
http://gimp-brainstorm.blogspot.com/2009/04/version-control.html
The way nip2/vips deals with a somewhat related
Hello Michael:
Adam and Eric are moving as expected on their respective GSoCs.
Nicolas
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to increases in code complexity.
--
I don't necessarily need to fully understand the details: this will be
the job of the GSoC students. I just would like to know at least
enough to properly steer them.
Thanks,
Nicolas Robidoux
Universite Laurentienne
(Wearing a blue hawaiian shirt today
I just want to let everyone know that many organizations fell into an
unintended trap having to do the Melange software used by Google to
manage the application process, trap in which Michael Schumacher, our
GSoC admin, did NOT fall.
Nicolas Robidoux
Universite Laurentienne
Dear GIMP GSoC mentors and prospective mentors.
Please remember to score and comment applications. Next milestone is
April 15.
Nicolas Robidoux
Universite Laurentienne
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Dear Nebojsa:
Suggestion: Just apply.
If you see other projects of interest, apply to those too.
Best fit can be sorted out later. Right now you need to officially
apply.
Best of luck,
Nicolas Robidoux
Laurentian University
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Expect two excellent students from my institution to slip applications
in just before the GSoC deadline.
This is the last week of class here, and all the semester projects are
due now.
Nicolas Robidoux
Laurentian University
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on top for one
of them. Better yet: Come up with your own GIMP/GEGL project instead
of relying on the ideas page.
This being said: If you would be so kind so as to let us know what
your favorite project is, this would increase the likelyhood that you
get that one.
Nicolas Robidoux
Universite
Hello all who put down good student UI projects.
Clearly, Peter can't have his students do them all. Given this, would
you consider putting them up at
http://wiki.gimp.org/gimp/SummerOfCode2009ideas
?
There are five days left to the application process, so some student
may bite, and then it
a method
by focusing on their weaknesses, but it certainly is a realistic way.
Also note that this interface would allow one to drive any triad of
resampling methods which can be compared and characterized in terms of
the three common artifacts.
Nicolas Robidoux
Laurentian University
Peter:
Of course, you could also use the interface to choose between three
cubic methods, which makes a lot of sense within GEGL (the jaggy one
would be lagrangian bicubic).
Nicolas Robidoux
Universite Laurentienne
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Vincent:
Do you think you could put some of your ideas for useful/interesting
GSoC projects here:
http://wiki.gimp.org/gimp/SummerOfCode2009ideas
?
Nicolas Robidoux
Universite Laurentienne
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:
Unless I find a mentor (I'm looking) who is ready to guide you through
the GEGL back end design and programming, a non-trivial software
engineering task, or you yourself have the competence to do it on your
own, you probably should find another project to apply to.
Nicolas Robidoux
Laurentian
= {15 JJ Thomson Avenue, Cambridge CB3 0FD, UK},
month ={Aug.}
}
and
@inproceedings{DBLP:conf/iciar/RobidouxTGT08,
author= {Nicolas Robidoux and
Adam Turcotte and
Minglun Gong and
Annie Tousignant},
title = {Fast Exact Area
choice to reserve the use of the novel (not so
sure anymore that it's really new) method for tasks for which the
jacobian is easy to compute and pass on. (This is the: ask people who
know better part.)
Does this make sense to you?
Nicolas Robidoux
Universite Laurentienne
probably
understand what I want to do.
Nicolas Robidoux
Universite Laurentienne
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This being said, what I have in mind in way simpler than what Craig
implemented. But if you understand Craig's paper, you probably
understand what I want to do.
Actually, if I took the time to completely understand Craig's paper, I
probably would understand what I want to do.
;-)
Nicolas
Rahul:
exact area box filtering with sides no less than the input image's
inter-pixel distance
This was a bit terse:
Exact area box filtering with a square box with diameter equal to the
inter-pixel distance is exactly bilinear interpolation. So, it's only
when the sides are larger than the
at this point.)
Nicolas Robidoux
Laurentian University
Jenny writes:
Hi all,
I'm a student and interested in an GSoC idea: Better nonlinear
resampler with built-in antialiasing (GEGL) suggested by Nicolas.
http://wiki.gimp.org/gimp/SummerOfCode2009ideas
I have prepared to implement this idea
into another.
Best of luck,
Nicolas Robidoux
Universite Laurentienne
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, aren't we all?) soul within the developers' group would give us
some guidance.
Nicolas Robidoux
Laurentian University
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Hello all,
Now is the time to add project ideas to the GIMP GSoC web site (this
includes GEGL).
http://wiki.gimp.org/gimp/SummerOfCode2009ideas
If you were the mentor/proposer for an idea from last year which did
not get done, please consider moving it to the 2009 page.
Nicolas Robidoux
of a natural scene---is not likely to give impressive results.)
Nicolas Robidoux
Universite Laurentienne
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by the
higher level nohalos.
See:
http://svn.gnome.org/viewvc/gegl/trunk/gegl/buffer/gegl-sampler-yafr.c?view=markup
--
I'd love manpower (GSoC?) to implement Nohalo-Smooth and/or either
Nohalo at higher quality levels.
(Just a wish.)
Nicolas Robidoux
Laurentian University/Universite
Hello Bill:
At some point it may a good idea to move this discussion off the list,
but at this point I'll hope that those without interest in these
issues are just skipping this email.
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jungle writes:
Nicolas Robidoux
Bill:
I forgot the sample xml code to test nohalo-sharp level 1:
!-- sharp enlargement --
gegl
gegl:scale x='16.4' y='16.4' filter='sharp'/
gegl:load path='data/PICTURE.png'/
/gegl
How to use:
Step 1:
Put this in a file (called, say, scale16p4PICTURE.xml) in the directory
to deliver the likely
outcome.
GIMP's New Year Resolutions would already be better than Road Map,
because everybody understands about keeping such...
(I already imagine the headline when GIMP moves to GEGL: The GIMP
Starts Smoking.)
-
May the New Year bring many good features.
Nicolas
Windows.)
Best of luck,
Nicolas Robidoux
Universite Laurentienne
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Hello all:
I am a very peripheral gimp and gegl player, but if you are having
trouble sending someone to Montreal, I almost certainly can go and
deliver whatever talk you want me to. (I have family there.)
Nicolas Robidoux
Laurentian University/Universite Laurentienne (8 1/2 hours driving from
think,
Nicolas Robidoux
Universite Laurentienne/Laurentian University
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could have TWO sets of choices:
Upscaling method: None, linear, cubic, lanczos
Downsampling method: None, linear, box (say)
with only one toggle being taken into account when the same type of
operation is applied in both directions (of course).
Nicolas Robidoux
Universite Laurentienne/Laurentian
softer...
2.) Interpolation options separately for Up- and Down-Scaling?
Nicolas Robidoux said, that as an alternative [to a smarter
algorithm], he could imagine separate GUI Options for Up- and
Down-Scaling.
I think, most user will think upon that: It's a joke, isn't it? ;-)
For the record:
I
/
It will produce a web page at that location which includes timings as
well as clickable thumbnails (just like the original gallery did).
To the main developers:
Thank you for your patience, and apologies the high bandwidth.
Nicolas Robidoux
Laurentian University/Universite Laurentienne
Apologies:
The yafr email was meant for the gegl-developer list.
Nicolas Robidoux
Laurentian University/Universite Laurentienne
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built-ins?
Idea 5:
You have another idea?
Idea 6:
Or should I just stick to C90 gcc built-ins?
Nicolas Robidoux
Laurentian University/Universite Laurentienne
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For example, if one followed this strategy to downsample to 17x9 instead of
15x9,
one would first box filter down to 32x16, then apply bilinear. It
should surprise
no one that this may produce a fairly different picture.
Nicolas Robidoux
Laurentian University/Universite Laurentienne
different. But they will be less different than with standard nearest
neighbour.)
If someone wants to implement the above, I can help.
-
I hope someone finds the above useful when thinking about the downsampling
issue.
With regards,
Nicolas Robidoux
Laurentian University/Universite
as Lanczos, but
introduces much less halo, and has a much crisper look in general.
Comments, inquiries etc welcome.
Nicolas Robidoux
Laurentian University/University Laurentienne.
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Hello all:
Maybe I am stupid, but I have looked all over the web for a code
snippet/script/howto which would be easy to adapt to allow me take an image
(any standard format) as input and resizing it using, say, the gegl cubic
sampler, and saving the output image in some generally readable
though,
in the
particular case of my next pet scheme, it makes no difference).
Thank you all for your comments,
Nicolas Robidoux
Laurentian University/Universite Laurentienne
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me know what you think.
Nicolas Robidoux
Laurentian University/Universite Laurentienne
[EMAIL PROTECTED]
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much by gamma obliviousness; bicubic, Lanczos, EANBQH and
IBFNBQH are NOT monotone.)
This is something I'll have to experiment with.
Thank you for your comments,
Nicolas Robidoux
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http://web.cs.laurentian.ca/robidoux/misc/
contains an add-on to the test
http://svenfoo.org/scaletest/133-9.html
done using three (preliminary versions) of image enlargement plug-ins, also
included.
See the README (in morescaletest.tar.gz) for slightly more details.
Nicolas Robidoux
Dept
-in into the built-in gimp image
resize functionality (some assistance would make this happen faster: we don't
quite know how to interact directly with the gimp core).
Nicolas Robidoux, Department of Mathematics and Computer Science, Laurentian
University
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