Re: [Gimp-user] Stitching Photos

2017-05-04 Thread Scott Jacobs via gimp-user-list 
The previous answers assume that the two .jpeg photos' subjects are right next 
to each other,
and that you want to make one big photo - essentially a panorama.

I concur with their answer: hugin is good for that. Sometimes a minimum of work 
is needed;
sometimes more fiddling is necessary.

However, if the photos are unrelated, and you just want to place them next to 
each other,
a simpler procedure may be all that is necessary - I have done this all the 
time.  For example:
I often do screenshots of song lyrics for songs I like; sometimes I have to do 
more than one,
as they don't all fit on screen at once.

What I do is to use an image viewer to see the dimensions of each of the photos 
and write them down.
Depending on whether I want to put one image under another, or next to each 
other, I add the widths
or add the lengths, and use the lengths (or widths) for the other dimension.
(Naturally, if the two images are not the same size, one would just pick a set 
of dimensions that allows you
to fit both of the images into the final image.  The background color for the 
image would then show around
the smaller image, so select a color accordingly.  If you're going to print, 
then probably white would be best.)

In GIMP, before doing anything with the photos, do File-->New, and enter the 
dimensions of the combined
image. (->Advanced Options allows you to make the background transparent, 
white, or foreground/background
colors; Background Color is default).
Then, File->Open As Layers the two images.  If they are in the same folder, 
then pres Ctrl- when clicking on
the second file. If not, probably File->Open As Layers twice, once for each 
image.

There will now be three layers, one for each image, and a background underneath 
them.
The images will be centered on the larger space you created initially.

Just move the layers around your new larger image so that they are positioned 
as you want (Click on the Move
tool in the toolbox, or Tools->Transform Tools->Move; in the Tool Options dock, 
make sure Layers is selected
for what to move, and I checkbox Move the Active Layer; click first on the 
layer in the layer dock that you want to move,
then click on the image and move it) You can use the cursor keys to move in one 
pixel amounts (hold down the
shift- key to move in larger pixel increments). If the orientation is vertical, 
you would just use up- and down-keys;
if horizontal, left- and right-keys.

Then export as .jpeg (or whatever you want), giving it whatever name you want.

[I set the size first, before loading the images, because I have had problems 
before with images disappearing as they
are moved past boundaries; while this is no doubt a failure on my part to 
understand just what I am doing, the above
procedure has always worked for me.]
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Re: [Gimp-user] Stitching Photos

2017-05-04 Thread Ofnuts 

On 04/05/17 04:11, DERoss wrote:

I have two JPEG files, each with a photo.  I want to creat a single file
that has the photos stitched together side-by-side.  While I know how to
export an image from GIMP into a JPEG file, I cannot figure out how to
stitch two images together.  How do I do this?  Better, where in the
user documentation is this described?
___


Use Hugin. Stitching pictures properly requires distortions (projections 
due to the rotation of you lens around a vertical axis).

Hugin knows how to do that, not Gimp.
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Re: [Gimp-user] Stitching Photos

2017-05-04 Thread Dave Stevens 
On Thu, 4 May 2017 14:14:34 -0400
Steve Kinney  wrote:

> On 05/03/2017 10:11 PM, DERoss wrote:
> > I have two JPEG files, each with a photo.  I want to creat a single
> > file that has the photos stitched together side-by-side.  While I
> > know how to export an image from GIMP into a JPEG file, I cannot
> > figure out how to stitch two images together.  How do I do this?
> > Better, where in the user documentation is this described?  

use hugin, it's specifically for this purpose.

d

> 
> There are automated tools to facilitate this, but I have not used
> them.
> 
> The manual process is not terribly complicated.
> 
> First, open one of the photos in the GIMP, then import the second
> photo as a layer.  Drag and drop the second image to the image
> canvas, quick & easy.
> 
> Next, do Image > Canvas size, and make the 'workspace' available big
> enough to accommodate both photos side by side, with some room left
> over to move them around.
> 
> Then align the photos so their edges fit together accurately.  How to
> do this depends on the individual photos; some rotation and scaling
> (in that order) of the layer you are moving around may be required to
> make them match, and maybe a little tweaking with the Perspective
> tool, which enables one to arbitrarily stretch a layer by
> repositioning its corners.
> 
> Note that when using the Rotate tool, you can move the center of
> rotation by dragging the cross hair icon in the middle of the grid to
> wherever you want it.  Making one detail near the top or bottom edge
> of your upper layer match the lower one exactly, and putting the
> center of rotation there, will save a lot of time and effort.
> 
> Adjusting the transparency of the upper layer to about 50% will
> greatly assist in lining it up with the base layer.  When your
> alignment, rotation, scaling etc. are
> 
> Once the two photos / layers are aligned and look right, "save" your
> work as XCF, then save it again with a new name, i.e. add "-1" or
> something to the name.  This is so you can go back and tweak your
> first effort if and as needed.
> 
> To make a seamless transition from one image to another, it may be
> helpful to add a layer mask to the upper image and use a very soft
> edged brush (or the gradient tool) on the mask to fade the edge of
> the upper image out a little.
> 
> Finally, crop the aligned photos to square up their edges, make any
> necessary color, light, etc. adjustments, save that result as XCF and
> export the image to your format of choice as a finished product.
> 
> Functions you may want to look up, if any are unfamiliar:  The Move
> tool, Scale tool, Rotate tool, Perspective tool, layer opacity
> adjustment, Crop tool.
> 
> I have made panoramas this way, and it worked out quite nicely.  I
> cheated, though, by taking the original pictures with a camera on a
> tripod, which make the assembly /way/ easier than hand held results
> permit.
> 
> :o)
> 
> 
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-- 
In modern fantasy (literary or governmental), killing people is the
usual solution to the so-called war between good and evil. My books are
not conceived in terms of such a war, and offer no simple answers to
simplistic questions.

- Ursula Le Guin
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Re: [Gimp-user] White background instead of transparent

2017-05-04 Thread Michael Schumacher 
On 05/04/2017 04:53 AM, stefanped wrote:

> The issue was, even though i selected PNG from the drop down on the right, it
> was exporting as jpeg. I hit the + select file type (by extension) on the left
> and a box popped up and from there i selected PNG and that fixed it.

Nothing broken there - the file type filter on the right limits the
displayed files to those matching the type chosen, and the file type
selection can be used to choose a type (and file name extension) for the
exported file.

There's hardly ever any need to change the latter from its default "By
extension" setting, though.


-- 
Regards,
Michael
GPG: 96A8 B38A 728A 577D 724D 60E5 F855 53EC B36D 4CDD
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Re: [Gimp-user] Stitching Photos

2017-05-04 Thread Steve Kinney 


On 05/03/2017 10:11 PM, DERoss wrote:
> I have two JPEG files, each with a photo.  I want to creat a single file
> that has the photos stitched together side-by-side.  While I know how to
> export an image from GIMP into a JPEG file, I cannot figure out how to
> stitch two images together.  How do I do this?  Better, where in the
> user documentation is this described?

There are automated tools to facilitate this, but I have not used them.

The manual process is not terribly complicated.

First, open one of the photos in the GIMP, then import the second photo
as a layer.  Drag and drop the second image to the image canvas, quick &
easy.

Next, do Image > Canvas size, and make the 'workspace' available big
enough to accommodate both photos side by side, with some room left over
to move them around.

Then align the photos so their edges fit together accurately.  How to do
this depends on the individual photos; some rotation and scaling (in
that order) of the layer you are moving around may be required to make
them match, and maybe a little tweaking with the Perspective tool, which
enables one to arbitrarily stretch a layer by repositioning its corners.

Note that when using the Rotate tool, you can move the center of
rotation by dragging the cross hair icon in the middle of the grid to
wherever you want it.  Making one detail near the top or bottom edge of
your upper layer match the lower one exactly, and putting the center of
rotation there, will save a lot of time and effort.

Adjusting the transparency of the upper layer to about 50% will greatly
assist in lining it up with the base layer.  When your alignment,
rotation, scaling etc. are

Once the two photos / layers are aligned and look right, "save" your
work as XCF, then save it again with a new name, i.e. add "-1" or
something to the name.  This is so you can go back and tweak your first
effort if and as needed.

To make a seamless transition from one image to another, it may be
helpful to add a layer mask to the upper image and use a very soft edged
brush (or the gradient tool) on the mask to fade the edge of the upper
image out a little.

Finally, crop the aligned photos to square up their edges, make any
necessary color, light, etc. adjustments, save that result as XCF and
export the image to your format of choice as a finished product.

Functions you may want to look up, if any are unfamiliar:  The Move
tool, Scale tool, Rotate tool, Perspective tool, layer opacity
adjustment, Crop tool.

I have made panoramas this way, and it worked out quite nicely.  I
cheated, though, by taking the original pictures with a camera on a
tripod, which make the assembly /way/ easier than hand held results permit.

:o)


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Re: [Gimp-user] Gimp 2.9.4 windows installer

2017-05-04 Thread Partha Bagchi 
On Tue, May 2, 2017 at 7:30 PM, mgroothuis  wrote:

> >On Tue, May 2, 2017 at 4:50 PM, Casey Connor
> > >
> >And if you have trouble with it, please let me know. :)
>
> Thank you, I will try there. In the past I have had problems with Partha's
> installs, no doubt caused by my computer setup, but I will give this a
> try. Do I
> need to uninstall version 2.9.2 or will that not cause any problems? I
> prefer to
> keep it, just in case something doesn't go as it should :-)
>
> --
> mgroothuis (via www.gimpusers.com/forums)
>

Can you tell me what problems you've had? Did you reach out to me with your
issues?
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Re: [Gimp-user] 'Saving' problem.

2017-05-04 Thread Ken Moffat 
On Thu, May 04, 2017 at 01:21:41AM +0200, JackOats wrote:
> Hi All,
> 
> Have just started using & getting familiar with Gimp. Obviously LOADS of 
> things
> to learn.
> I started work on a project - imported a .png to work on. 
> I had this as a background layer with 3 layers stacked on top which had 
> various
> coloured pencil & brushwork on.
> My problem is saving & exporting the image (as .png) to a file on my Desktop.
> When I open the file later to carry on working on it all the layers have gone
> and it seems to have been 'rendered' to a single layer.
> Is it possible to save & export the file in it's working state so I can carry 
> on
> working on it later.
> 
In the gimp, Save and Export are different things.  If you save as
an xcf file, it should have all the layers.  AFAIK a png file cannot
have layers - so to "save" to png (or jpeg) you have to use the
Export command.  You will also find that xcf files are larger than
pngs, so make sure you have enough space on your filesystem
(probably not a big issue in 2.8, particularly if the dimensions of
the png are screen-size, but in 2.9 the xcf files are bigger - I've
filled up /home on one of my machines while editing photos and
saving xcfs (with different names) at various points).

ĸen
-- 
I live in a city. I know sparrows from starlings.  After that
everything is a duck as far as I'm concerned.  -- Monstrous Regiment
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[Gimp-user] Brush changes size automatically

2017-05-04 Thread Profit 
Hey, i have a problem. The bar with brush settings and stuff has become
incredibly big so i decided to close it and open new one. After adding options
to the new toolbar i choosed rubber and as i was moving the cursor it was going
smoothly bigger and smaller as the picture being transparent in some points.
Please help! *yes i reinstalled gimp*

-- 
Profit (via www.gimpusers.com/forums)
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[Gimp-user] White background instead of transparent

2017-05-04 Thread stefanped 
>Things look alright on GIMP side from yur screenshot, but for the fact
>your image filename lists it as a ".jpg".
>
>The jpg file format has no support for transparency, and the
>"simptons" of trying to save transparency to such a file would be
>exactly waht you describe.
>
>Are you sure you are really making your export to a png file? And if
>so, are you sure the other application you are using to view the file
>correctly supports/shows this transparency?
>
>Regards,
>
>   js
> -><-

The issue was, even though i selected PNG from the drop down on the right, it
was exporting as jpeg. I hit the + select file type (by extension) on the left
and a box popped up and from there i selected PNG and that fixed it.

Attachments:
* http://www.gimpusers.com/system/attachments/564/original/Capture.PNG

-- 
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[Gimp-user] 'Saving' problem.

2017-05-04 Thread JackOats 
Hi All,

Have just started using & getting familiar with Gimp. Obviously LOADS of things
to learn.
I started work on a project - imported a .png to work on. 
I had this as a background layer with 3 layers stacked on top which had various
coloured pencil & brushwork on.
My problem is saving & exporting the image (as .png) to a file on my Desktop.
When I open the file later to carry on working on it all the layers have gone
and it seems to have been 'rendered' to a single layer.
Is it possible to save & export the file in it's working state so I can carry on
working on it later.

Thanks.

-- 
JackOats (via www.gimpusers.com/forums)
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[Gimp-user] Gimp 2.9.4 windows installer

2017-05-04 Thread mgroothuis 
>On Tue, May 2, 2017 at 4:50 PM, Casey Connor
>
>And if you have trouble with it, please let me know. :)

Thank you, I will try there. In the past I have had problems with Partha's
installs, no doubt caused by my computer setup, but I will give this a try. Do I
need to uninstall version 2.9.2 or will that not cause any problems? I prefer to
keep it, just in case something doesn't go as it should :-)

-- 
mgroothuis (via www.gimpusers.com/forums)
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[Gimp-user] Stitching Photos

2017-05-04 Thread DERoss 
I have two JPEG files, each with a photo.  I want to creat a single file
that has the photos stitched together side-by-side.  While I know how to
export an image from GIMP into a JPEG file, I cannot figure out how to
stitch two images together.  How do I do this?  Better, where in the
user documentation is this described?
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