Re: [Gimp-user] Question about saving jpeg images

2007-07-24 Thread Jozef Legeny
gimp uses 85% quality as a default one for a jpeg image, it might be
that your camera is using a 100% quality by default, try changing this
setting (use the Save As option). the DPI is just a way of telling
other application how big (in dimensions, not the filesize) the image
really should be (after printing for example)

On 7/19/07, Jeffery Small [EMAIL PROTECTED] wrote:
 I am using the 2.3.18 development version of gimp on a SPARC Solaris
 system, but I also see this with the 2.2.15 version as well.

 I have a 4MB jpeg file created with my Minolta 7D camera.  I load it into
 Gimp and then immediately save it.  The resulting file is now only 482kB
 in size!  When I use exiftool to examine the exif data, I see the following
 unexpected changes:

Original VersionSaved Version
-   -
File Size:  4 MB482kB
X Resolution:   72  300
Y Resolution:   72  300
Minolta Image Size: Large   Medium
Focus Mode: Manual  Single-Shot AF
ISO Setting:Auto800
Free Mem. Card Images:  300 1
Rotation:   Horizontal (normal) Unknown (0)
Image Number:   3   4
Image Number 2: 55233

 The saved version also reports:

Warning : [minor] Possibly incorrect maker notes offsets (fix by -94?)

 It appears that the development version of gimp is messing up the exif header
 in a number of ways.  But why is the file being truncated to such a degree?
 Is there something I have set incorrectly that is causing this?  Is there
 a preference setting for a default level of jpeg compression?  In both
 cases the image size is being reported as 3008x2000 but note the difference
 in the DPI resolution.  I feel as though I must be missing something
 obvious.  Thanks for any pointers you can offer.

 Regards,
 --
 Jeffery Small

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LEGENY Jozef
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[Gimp-user] MacPorts

2007-07-24 Thread Victor Domingos

Hi! I've been trying to install GIMP 2.3.18 (gimp-dev) in Mac OS X  
Tiger, from MacPorts (it used to work fine, some weeks ago) but now I  
get the following error (see bottom of this message). Did anyone  
around here get the same error? Is there any know solution?

Ok, ok. I should email the maintainer of this port. I will try to do  
so...

Thanks anyway for any help
Victor Domingos
http://lojamac.com/blog



---

---  Configuring fontconfig
Error: Target org.macports.configure returned: configure failure:  
shell command  cd /opt/local/var/macports/build/ 
_opt_local_var_macports_sources_rsync.macports.org_release_ports_graphic 
s_fontconfig/work/fontconfig-2.4.2  ./configure --prefix=/opt/ 
local --mandir=/opt/local/share/man --with-add-fonts=/Library/Fonts,/ 
Network/Library/Fonts,/System/Library/Fonts,/usr/X11R6/lib/X11/fonts,/ 
opt/local/share/fonts  returned error 1
Command output: checking for random... yes
checking for lrand48... yes
checking for a usable iconv... no
checking for freetype-config... /opt/local/bin/freetype-config
checking for FT_Get_Next_Char... no
checking for FT_Get_BDF_Property... no
checking for FT_Get_PS_Font_Info... no
checking for FT_Has_PS_Glyph_Names... no
checking for FT_Get_X11_Font_Format... no
checking for FT_Bitmap_Size.y_ppem... no
checking expat.h usability... no
checking expat.h presence... no
checking for expat.h... no
checking xmlparse.h usability... no
checking xmlparse.h presence... no
checking for xmlparse.h... no
configure: WARNING: Cannot find usable expat library. Trying to use  
libxml2 as fallback.
checking for pkg-config... /opt/local/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking for LIBXML2... configure: error: Package requirements  
(libxml-2.0 = 2.6) were not met:

No package 'libxml-2.0' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables LIBXML2_CFLAGS
and LIBXML2_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.


Error: The following dependencies failed to build: libgnomeui gnome- 
keyring gtk2 pango Xft2 fontconfig xrender render cairo tiff jpeg p5- 
xml-parser perl5.8 libbonoboui dbus docbook-xml-4.1.2 xmlcatmgr  
libxml2 xmlto docbook-xml-4.2 docbook-xsl getopt libxslt dbus-glib  
libbonobo intltool orbit2 libidl popt libgnome esound audiofile  
autoconf help2man p5-locale-gettext libtool m4 gnome-vfs gconf gnome- 
mime-data heimdal howl neon openssl libgnomecanvas libart_lgpl  
libglade2 libgtkhtml gail libmng automake lcms librsvg libcroco  
libgsf libwmf poppler poppler-data py-gtk2 py-cairo py-numeric  
python24 py-gobject
Error: Status 1 encountered during processing.
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Re: [Gimp-user] GIMP and tilt sensitivity

2007-07-24 Thread GSR - FR
Hi,
[EMAIL PROTECTED] (2007-07-22 at 1801.32 -0400):
 Thank you very much for your examples, they also helped me understand a bit
 more the Save as GIH dialogue. One of the things that strikes me as
 illogical was that you start the ranks from the bottom and go to the top as
 you add more ranks?... It seemed more logical to me to have the first
 governing rank on top, while the second is underneath it, etc. If you don't
 mind explaining the logic, it would be great and might teach me a thing or
 two about GIMP and this concept.

Origin of coords does not need common sense, just that the rules are
known and not ignored. Someone decides 0,0 is somewhere, and +X goes
this way and +Y this other. That applies both to maths and to this. :]
Sadly known is not 100% in GIH-land (I remember Gimp 1.2 dialog had
controls to the side and even allowed 5 dimensions, even if only 4
controls were provided... what was the 5th?), at best you have to go
with empiric conclusions.

 So, taking your brush pipe-brush-pressure-angle-and-tilts.gih, I read the
 first rank for x-tilt, composed of 3 cells. Next rank, y-tilt, created from
 3 cells as well - so far, that's a 9 cell matrix with the numbers 1 through
 9, printed according to the X/Y tilt. Then you have an angular brush with
 two ranks (the black and red colored numbers governing the angle of your
 stroke, somehow the black only appears from degree 0 (upwards) to 90
 (right), from 90 to 359 the red takes over? Shouldn't it be black from
 degrees 0 to 179 and red from 180 to 359?) and the last rank, pressure,
 uses
 black and red colors for a light pressure and green and blue for harder
 pressure, alternating colors as per the angle of your brush.

I learnt that looking inside the GIH files was a sure way to get a
headache. I always looked at XCF versions, and considered GIH a nasty
manual step required to get brushes working, instead of having the XCF
as single file that had to be created and tweaked. Or even better,
having that and run-time controls to change the mappings (what goes
with pressure, etc), so not saving at all except to change images or
default mappings.

The 3D angle-and-tilts brush works, giving ~90 deg to each of the four
layers. But yes, I checked the 4D pressure-angle-and-tilts brush with
mouse, and it strangely gives a 90-270 instead of 180-180. I thought
(or so my memory says I did), that it would select one of two groups
by angle (KR or GB), and then select the exact layer by pressure (if
it got to KR, K or R). I am unable to test pressure (or tilt), but if
you say it selects two colours for high and the other two for low,
that part seems to match what I thought.

When the dialog was to the side, I read it this way, for 4D:

Select  SelectSelect  Select
group of - one layer  - cells in - cell in
layers  from groupY axis  X axis

The example brush has the following:

Pressure - Angle  - Y tilt   - X tilt

So the path would be, with mouse (fixed pressure, fixed 0 tilt):

KR GB- K R- 2 5 8- 5  - Black or red 5s
Mouse   0-90  0-deg   0-deg
pressureortilttilt
says90-360
1st   (?)
always

Maybe there is a bug, or I set something wrong in the save dialog or
some hidden rule escaped my experiments (maybe there is no layers in
groups after all, go figure).

 P.S. I'm explaining these things back to you just to make sure I
 understood things right, please don't feel offended if I state the 
 obvious
 :) But your example is much appreciated, it proved the options work as
 expected (except that weird angular decision) and also gave me an insight
 the manual was not able to provide.

No problem, I remember the issue is far from documented, it seems
barely anybody knows how things work or worse, how it should work, so
the topic quickly gets discarded. Experimenting without going into the
deeper levels is enough for me, even if not being 100% sure the things
are correct. This is the third time, at least, years ago first, the
IRC session second, and some parts still unclear. Sadly all the manual
steps (including for single image brushes) makes the brush system
really tedious and clunky, so I understand that as things get more
complex they get less use and less understanding.

Good luck trying to figure any misconceptions or missing details. See
the issue with 90+270 deg instead of 180+180, and I would add why you
can control the cells up to 1000 or why playing with different buttons
makes other values change (cell size - number of cells and count in
first rank, but not other ranks). Best would be figuring how it was
planned to be.

GSR
 
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Re: [Gimp-user] MacPorts

2007-07-24 Thread Axel Wernicke

Hi Victor,


2007/7/24, Victor Domingos [EMAIL PROTECTED]:



Hi! I've been trying to install GIMP 2.3.18 (gimp-dev) in Mac OS X
Tiger, from MacPorts (it used to work fine, some weeks ago) but now I
get the following error (see bottom of this message). Did anyone
around here get the same error? Is there any know solution?



does not help you right now, but it works for me (MBP; 10.4.10)


Ok, ok. I should email the maintainer of this port. I will try to do

so...



[x] this is the right thing to do


---  Configuring fontconfig

Error: Target org.macports.configure returned: configure failure:



this means that not GIMP fails to build, but fontconfig

configure: WARNING: Cannot find usable expat library. Trying to use

libxml2 as fallback.



checking for LIBXML2... configure: error: Package requirements

(libxml-2.0 = 2.6) were not met:

No package 'libxml-2.0' found



This rather seems to be a problem with the fontconfig dependencies?

try a sudo port install libxml2 before trying to install GIMP

Greetings, lexA


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--
life is like a box of chocolates - you never know what you wanna get.
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