adjusting a horizon

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adjusting a horizon

by Bill Y. :: Rate this Message:

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I know I have seen, in the Gimp Manual, a way of adjusting a photo that's been
taken on a bit of a slant - for instance a photo of a window. I have a photo
where my horizon is on a slant. Can anyone remind me where in the Gimp manual
it tells me how to adjust this? many thanks for any help!
Jude  

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Parent Message unknown adjusting a horizon

by Bill Y. :: Rate this Message:

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>Jude T. schreef:
>> I know I have seen, in the Gimp Manual, a way of adjusting a photo that's
been
>> taken on a bit of a slant - for instance a photo of a window. I have a
photo
>> where my horizon is on a slant. Can anyone remind me where in the Gimp
manual
>> it tells me how to adjust this? many thanks for any help!
>> Jude  
>>
>>  
>Tools > Transformation > Rotate
>
>Andre
>

Thanks Andre.I'll play with this feature. It's not the way of adjusting an
image that I saw before - where there was a picture of a window. But I'm sure
it will do the job. Many thanks.
Jude


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Re: adjusting a horizon

by phani00 :: Rate this Message:

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On Monday 28 September 2009 02:59:17 pm Jude T. wrote:
> >Tools > Transformation > Rotate

this should be the first step in straightening out an image with distorted
perspective, as you get when you don't hold the camera straight.

after getting _something_ straight, either the middle of the image, or an
important part somewhere else, you'll have to adjust the perspective. either
choose tools -> transform tools -> perspective, or the perspective tool from the
toolbox.

you'll have to play around a little to find the ideal perspective shift. if you
change the perspective too much, the photo will look weired. after adjusting the
perspective you can undo & redo, and repeat the process if necessary.

online manual links:

http://docs.gimp.org/2.6/en/gimp-tool-rotate.html
http://docs.gimp.org/2.6/en/gimp-tool-perspective.html

i didn't see a tutorial dealing with this subject, but you'll find lots of
helpful information in there: http://gimp.org/tutorials/

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Re: adjusting a horizon

by Joe Carsto-2 :: Rate this Message:

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On Mon, Sep 28, 2009 at 2:42 AM, Jude T. <forums@...> wrote:
I know I have seen, in the Gimp Manual, a way of adjusting a photo that's been
taken on a bit of a slant - for instance a photo of a window. I have a photo
where my horizon is on a slant. Can anyone remind me where in the Gimp manual
it tells me how to adjust this? many thanks for any help!
Jude

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Jude T.
 
Try watching this video at http://meetthegimp.org.  It will show you how to use both the rotate and prespective tools.
 
Joe Carsto
 

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Re: adjusting a horizon

by phorgan1 :: Rate this Message:

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Joe Carsto wrote:


On Mon, Sep 28, 2009 at 2:42 AM, Jude T. <forums@...> wrote:
I know I have seen, in the Gimp Manual, a way of adjusting a photo that's been
taken on a bit of a slant - for instance a photo of a window. I have a photo
where my horizon is on a slant. Can anyone remind me where in the Gimp manual
it tells me how to adjust this? many thanks for any help!
Jude
Klaus Goelker's book GIMP 2 for Photographers has great information on this.

Patrick
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Re: adjusting a horizon

by Bugzilla from daniel.hornung@gmx.de :: Rate this Message:

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On Monday 28 September 2009, Jude T. wrote:
> I know I have seen, in the Gimp Manual, a way of adjusting a photo that's
> been taken on a bit of a slant - for instance a photo of a window. I have a
> photo where my horizon is on a slant. Can anyone remind me where in the
> Gimp manual it tells me how to adjust this? many thanks for any help!
> Jude

For all those tools mentioned in the other posts, check out the "Corrective"
mode, preferrably with the transformation preview set to only "Grid".  With
that, it's just fun to correct skewed photographs.

Daniel


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Parent Message unknown Re: adjusting a horizon

by Bugzilla from daniel.hornung@gmx.de :: Rate this Message:

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Hello Phani,

> > check out the "Corrective" mode
>
> please excuse my ignorance, but where do i find this mode?

http://docs.gimp.org/en/gimp-tools-transform.html#gimp-tool-transform
-> Tool Options -> Direction

You find this setting (and all other tool related options) in the tool options
dialog, which is a dock that is usually just below the tool dialog itself.  
If you can't find it, I suggest the chapters on docks & dialogs in the GIMP
help pages.

I hope you enjoy it,
Daniel


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Re: adjusting a horizon

by bgw-2 :: Rate this Message:

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On 09/28/2009 02:29 AM, Jude T. wrote:

>> Jude T. schreef:
>>      
>>> I know I have seen, in the Gimp Manual, a way of adjusting a photo that's
>>>        
> been
>    
>>> taken on a bit of a slant - for instance a photo of a window. I have a
>>>        
> photo
>    
>>> where my horizon is on a slant. Can anyone remind me where in the Gimp
>>>        
> manual
>    
>>> it tells me how to adjust this? many thanks for any help!
>>> Jude
>>>
>>>
>>>        
>> Tools>  Transformation>  Rotate
>>
>> Andre
>>
>>      
> Thanks Andre.I'll play with this feature. It's not the way of adjusting an
> image that I saw before - where there was a picture of a window. But I'm sure
> it will do the job. Many thanks.
> Jude
>    
Also, check out the Steinort and DeMartin's MeetTheGimp videos - - -
meetthegimp.org
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