Re: [Gimp-user] Problem with the Newsprint filter?

2012-01-09 Thread Jay Smith

On 01/09/2012 10:00 AM, Zweibaby wrote:

So, yesterday I was trying to halftone an image.  Everything was working fine, 
but I couldn't figure out how to use it the way I wanted to.  So I found a 
tutorial.  I read it, figured out what I was doing wrong, went on my way.  
Everything seemed fine.



Then I went to use my newfound knowledge, and lo and behold, the Newsprint 
filter stopped working.  No matter what I tried, the preview image looked just 
like the original.  And when I tried applying the filter anyway, figuring maybe 
something was just up with the preview panel, nothing happened.  The filter 
pauses to load when I change something, acting like it's working, but nothing 
happens.  The closest thing I've been able to get was the image completely 
disappearing when I change a certain setting (switch to intensity, in case you 
were wondering).  I tried googling my problem, but all that gets me is 
tutorials and the how-to-use guide.  I was hoping someone here would know 
what's wrong and how to fix it.



Thanks in advance!


Well, I got it to sort-of work now.  It's not exactly how I want it, and I 
still haven't figured out how it suddenly switched the way it wanted to work, 
but I pieced something together.  I'd still like to know why it did what it 
did, though.


Is it possible that your image has multiple layers and that 
(unknowingly) you were trying to use the filter on a layer for which the 
filter would have no effect?


Jay
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Re: [Gimp-user] Problem with the Newsprint filter?

2012-01-09 Thread peter kostov

On 01/09/2012 05:20 PM, Jay Smith wrote:

On 01/09/2012 10:00 AM, Zweibaby wrote:

So, yesterday I was trying to halftone an image. Everything was
working fine, but I couldn't figure out how to use it the way I
wanted to. So I found a tutorial. I read it, figured out what I was
doing wrong, went on my way. Everything seemed fine.



Then I went to use my newfound knowledge, and lo and behold, the
Newsprint filter stopped working. No matter what I tried, the preview
image looked just like the original. And when I tried applying the
filter anyway, figuring maybe something was just up with the preview
panel, nothing happened. The filter pauses to load when I change
something, acting like it's working, but nothing happens. The closest
thing I've been able to get was the image completely disappearing
when I change a certain setting (switch to intensity, in case you
were wondering). I tried googling my problem, but all that gets me is
tutorials and the how-to-use guide. I was hoping someone here would
know what's wrong and how to fix it.



Thanks in advance!


Well, I got it to sort-of work now. It's not exactly how I want it,
and I still haven't figured out how it suddenly switched the way it
wanted to work, but I pieced something together. I'd still like to
know why it did what it did, though.


Is it possible that your image has multiple layers and that
(unknowingly) you were trying to use the filter on a layer for which the
filter would have no effect?



Or any chance that your image is in Grayscale mode? The filter will 
still work, but the effect will be not as if the image is RGB.


Greetings,
Peter
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[Gimp-user] Fix Orientation ?

2012-01-09 Thread Ronald F. Guilmette


What is the proper way, using gimp, to correct the orientation of an
image?

For example, I just took a shot with one of my cameras where I was
holding the camera in a vertical (portrait) orientation.  But when I
transfer the .JPG to my PeeCee and view it with gimp (or ImageMagick)
it is laying over on its sid, in landscape orientation.

To fix this, should I be using Tools-Transform Tools-Rotate or is
there a better way?  (Actually, I did try doing it that way using
gimp, and the results were distinctly unacceptable... some parts of
the image got cropped out, and some new transparent parts were added.
Bummer.  This is not at all what I had in mind.)


Regards,
rfg


P.S.  Before asking here, I did try googling around for gimp and
orientation and/or gimp and rotate but didn't find anything
enlightening.  I also checked the Gimp FAQ and again came up empty.

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Re: [Gimp-user] Fix Orientation ?

2012-01-09 Thread Christen Anderson
Image -- Transform -- Rotate

On Mon, Jan 9, 2012 at 2:10 PM, Ronald F. Guilmette
r...@tristatelogic.comwrote:



 What is the proper way, using gimp, to correct the orientation of an
 image?

 For example, I just took a shot with one of my cameras where I was
 holding the camera in a vertical (portrait) orientation.  But when I
 transfer the .JPG to my PeeCee and view it with gimp (or ImageMagick)
 it is laying over on its sid, in landscape orientation.

 To fix this, should I be using Tools-Transform Tools-Rotate or is
 there a better way?  (Actually, I did try doing it that way using
 gimp, and the results were distinctly unacceptable... some parts of
 the image got cropped out, and some new transparent parts were added.
 Bummer.  This is not at all what I had in mind.)


 Regards,
 rfg


 P.S.  Before asking here, I did try googling around for gimp and
 orientation and/or gimp and rotate but didn't find anything
 enlightening.  I also checked the Gimp FAQ and again came up empty.

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Re: [Gimp-user] Fix Orientation ?

2012-01-09 Thread Frank Gore
On Mon, Jan 9, 2012 at 4:10 PM, Ronald F. Guilmette
r...@tristatelogic.com wrote:

 What is the proper way, using gimp, to correct the orientation of an
 image?

Image - Rotate - XX Clockwise/Counter-clockwise, etc

--
Frank Gore
THE place to talk photography!
www.FriendlyPhotoZone.com
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Re: [Gimp-user] Fix Orientation ?

2012-01-09 Thread Jay Smith

On 01/09/2012 04:10 PM, Ronald F. Guilmette wrote:

What is the proper way, using gimp, to correct the orientation of an
image?

For example, I just took a shot with one of my cameras where I was
holding the camera in a vertical (portrait) orientation.  But when I
transfer the .JPG to my PeeCee and view it with gimp (or ImageMagick)
it is laying over on its sid, in landscape orientation.

To fix this, should I be using Tools-Transform Tools-Rotate or is
there a better way?  (Actually, I did try doing it that way using
gimp, and the results were distinctly unacceptable... some parts of
the image got cropped out, and some new transparent parts were added.
Bummer.  This is not at all what I had in mind.)


Regards,
rfg


P.S.  Before asking here, I did try googling around for gimp and
orientation and/or gimp and rotate but didn't find anything
enlightening.  I also checked the Gimp FAQ and again came up empty.


Ron,

When I started using Gimp, rotation (arbitrary) was a big problem for me.


If you wanting to rotate in 90 degree increments, then use (as others 
have already posted)


   Image, Transform, [and select the operation you want]

That will take care of the problem you are having.


On the other hand if you want to do arbitrary or automatically 
calculated degrees of rotation, the method you used is correct, HOWEVER, 
you first must expand the canvas:


a) In some cases you may wish to set the background color.  That is in 
the Toolbox (Windows, Toolbox) ... you can set foreground/background 
colors and/or reverse them, etc.  When you expand the canvas, it will 
automatically fill with the background color you have specified, thus 
the potential importance of this step.


b) To expand canvas:

   Image, Canvas Size
   FIRST AT THE BOTTOM IN Layers: Resize Layers CHANGE TO ALL LAYERS
   (That is a major Gimp Annoyance.)
   Then enter your desired new canvas size and then move out of that
 field for it to take affect.
   NOTE that once you have entered the new canvas size but are still in
 that dialog, you can drag the preview image around in the canvas
 to put it roughly where you want it.

c) Then do your Tools-Transform Tools-Rotate.

Learning to use the Arbitrary or Automatically Calculated Rotation tool 
takes some experimentation (at the bottom your Toolbox there should be a 
variety of options for its behavior).  Once you figure it out, it is 
extremely powerful.


Jay
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[Gimp-user] Installing new script ?

2012-01-09 Thread Ronald F. Guilmette

OK, so now that I've got my image oriantation all sorted out, now I have
a different problem...

I just took this shot, which I kind-of like, and I've already cropped 
reoriented it:

ftp://ftp.tristatelogic.com/private/gimp/squirrel-b.jpg

Unfortunately, however if you look close you'll see it has some rather
serious purple fringing.  Now I'd like to get gimp's help to eliminate
that.

So I found this thing called Darla-PurpleFringe.scm and I just downloaded
it from this page:

   http://registry.gimp.org/node/185

The problem is that I've never installed a gimp script before, and apparently
I'm doing something wrong.

 see that I have a directory called .gimp-2.6 in my home directory, and
i see that this directory has a number of further subdirectories, one of
which is named scripts.  So I such the new .scm file into that directory
and then restarted gimp.  But contrary to the directions on the page listed
above, this new script _does not_ appear to be showing up underneath
Filters-Script-Fu

What did I do wrong?

The file has permissions 0644.

Any help appreciated.  I sure would like to see if this purple fringing fix
actually works.

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Re: [Gimp-user] Installing new script ?

2012-01-09 Thread Ronald F. Guilmette

In message CAE9_fe_H1H_LTZ-0ShV=j44geBQp==q0yftrchmukszrex3...@mail.gmail.com
, Chris Mohler cr33...@gmail.com wrote:

On Mon, Jan 9, 2012 at 3:39 PM, Ronald F. Guilmette
r...@tristatelogic.com wrote:
 =C2=A0But contrary to the directions on the page listed
 above, this new script _does not_ appear to be showing up underneath
 Filters-Script-Fu

The menu location appears to be:
Script-Fu Darla =E2=80=93 Purple Fringe Fix

Does it appear there?

DOH!  me, slaps forehead

Yea, it's there.  Thanks.  I fell dumb.  I saw Script-Fu under Filters
and I didn't even realize that it also had its own button.

Thanks!

So I applied the purple fringing fix, and it seems to have done a really
marvelous job, but now I got a new problem.

When I go to save the fixed image, I am getting a warning message saying:

 You are about to save a layer mask as JPEG.
 This will not save the visible layers.

I have no idea what this means.  Should I be worried?  Do I have to do
some other magic before I save the fixed image?

Oh boy!  It gets even weirder.  I went ahead and clicked on Confirm and
now I'm getting another warning saying:

 Your image should be exported before it can be saved as JPEG
 for the following reasons:

 JPEG plug-in can't handle transparency

Flatten image

 The export conversion won't modify your original image.

Hummm...  OK, so now one of the options in response to that is export,
so  take a chance and click on that.

Presto!  Changeo!  Well, whatever the hell all that was about, I guess it
all worked.  Here's the de-fringed image:

ftp://ftp.tristatelogic.com/private/gimp/squirrel-c.jpg

Looks OK to me.  And definitely less fringe.

I still worry a little about the fact that I really don't know what the hell
I'm even doing.  But what the hell!  It wouldn't be the first time. :-)


Regards,
rfg


P.S.  This seems rather odd to me, but apparently Darla's defringer will
not allow itself to be applied twice, successively, to an image.  Once
you have defringed using the script, you can't get the script to re-run
on the same image, however...

If you save the defringed image to a file, exit gimp, and then run gimp
again on the defringed .JPG, then you can get the defringer to run anew.

I did that, and actually, yes, the specific image I'm working with seems to
have benefitted from having the defringer run on it twice.  Here's the image
after ONE and then TWO defringing steps:

 ftp://ftp.tristatelogic.com/private/gimp/squirrel-c.jpg
 ftp://ftp.tristatelogic.com/private/gimp/squirrel-d.jpg

The fringing is most notable down at the upper edge of the rain gutter and
also to the right of that, on the white stucco.  Applying two defringing
steps almost eliminated the fringing entirely.  (Yippee!)
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Re: [Gimp-user] Installing new script ?

2012-01-09 Thread Steve Kinney
On 01/09/2012 05:15 PM, Ronald F. Guilmette wrote:
 When I go to save the fixed image, I am getting a warning message saying:

  You are about to save a layer mask as JPEG.
  This will not save the visible layers.

 I have no idea what this means.  Should I be worried?  Do I have to do
 some other magic before I save the fixed image?

Hey Ronald,

That means that your image in progress includes a layer mask, most
likely added by the script you ran against it.  That layer mask is
the current selection.

So you need to find the Layers tab in your Tool Options dock.  Left
click on the image part of any layer there - that would be any
thumbnail that is in the left column - to select it.  Now your image
will save as JPG without complaint.

 P.S.  This seems rather odd to me, but apparently Darla's defringer will
 not allow itself to be applied twice, successively, to an image.  Once
 you have defringed using the script, you can't get the script to re-run
 on the same image, however...

 If you save the defringed image to a file, exit gimp, and then run gimp
 again on the defringed .JPG, then you can get the defringer to run anew.

That's the same problem again:  After running the plugin, it
apparently leaves a layer mask selected.  Many scripts won't run
with a layer mask selected, or at all on a layer with a mask.

The same filter can't run against the finished result you see in
the main image edit window, because what you are looking at is the
base layer, with its appearance changed by the masked layer the
script left above it.  It may be possible to select the base layer
in the Layers tab of your tool options dock, and run the filter
against that layer.  If this works it will give you an additive
effect from both sets of new layers + masks created by the filter.

Or you can do Edit  Copy Visible followed by Edit  Paste, and
click on the CReate a new layer button in the Layers tab of your
dock window, to get what you see as one layer.   You can re-run your
filter against that layer.

Or you can do the quick and dirty version:  Do Image  Flatten
Image.  That will get you a one layer image, where the base layer
looks exactly like what your multi-layer image did moments before. 
Your filter will run against that for sure.

 I did that, and actually, yes, the specific image I'm working with seems to
 have benefitted from having the defringer run on it twice.  Here's the image
 after ONE and then TWO defringing steps:

  ftp://ftp.tristatelogic.com/private/gimp/squirrel-c.jpg
  ftp://ftp.tristatelogic.com/private/gimp/squirrel-d.jpg

As a general rule, it's not a good idea to edit, save, open, and
re-edit a .jpg image.  The .jpg format is a lossy compressed
format:  It sacrifices a small amount of detail to make the saved
image a much smaller file. How much detail you lose can be adjusted
during save with the Quality slider in the GIMP, but even 100%
involves some loss:  Every time a .jpg is opened and re-saved as
.jpg, some loss of resolution happens.  Just doing this once, while
saving with a high quality setting, does not usually have a
noticeable effect, but multiple cycles of save - close - reopen -
save can add up to a messed up image, and it gets worse faster, the
more you compress the image (= the lower the quality setting).

It is better to save your finished image in .xcf then as .jpg, and
if you need to work on it some more, start with the saved .xcf
file.  The .xcf format uses lossless compression, so you can save it
as many times over as required without any problems.

I understand the next generation of the GIMP will have separate Save
and Export commands, where Save creates an .xcf file and Export
creates the other format of your choice.

:o)

Steve



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[Gimp-user] 2.7

2012-01-09 Thread Dave Wilcox
I can see on the website where I can download version 2.6 but i dont see
where I can d/l 2.7.

Can ya help me out?
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Re: [Gimp-user] 2.7

2012-01-09 Thread Alexandre Prokoudine
On Tue, Jan 10, 2012 at 2:55 AM, Dave Wilcox davew54...@gmail.com wrote:
 I can see on the website where I can download version 2.6 but i dont see
 where I can d/l 2.7.

Source code? Windows build? DEB packages? DMG for Mac? Please be more specific.

Alexandre Prokoudine
http://libregraphicsworld.org
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Re: [Gimp-user] Installing new script ?

2012-01-09 Thread Ronald F. Guilmette

In message 4f0b705b.2070...@pilobilus.net,
Steve Kinney ad...@pilobilus.net wrote:

On 01/09/2012 05:15 PM, Ronald F. Guilmette wrote:
 I did that, and actually, yes, the specific image I'm working with seems to
 have benefitted from having the defringer run on it twice.  Here's the image
 after ONE and then TWO defringing steps:

  ftp://ftp.tristatelogic.com/private/gimp/squirrel-c.jpg
  ftp://ftp.tristatelogic.com/private/gimp/squirrel-d.jpg

As a general rule, it's not a good idea to edit, save, open, and
re-edit a .jpg image.  The .jpg format is a lossy compressed
format...

Yea yea.  I know.

If I was doing this professionally, or for publication, then I would have
been more careful and saved the intermediate result as a .XCF file.  But
I'm just messing around here, trying to see what this whiz-bang purple
de-fringer can really do.  And so far, I'm pretty damned impressed.  It
really does a nice job... even better if you run it twice.


Regards,
rfg

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