Re: [hugin-ptx] Help My Skies

[Carlos Eduardo G. Carvalho (Cartola)]

Yes, I also use erect2cubic, but to have it you need to install Bruno
Postle's Panotools::Script .
If someone need it for windows I have it already compiled as a portable
version.

Cheers,

Carlos E G Carvalho (Cartola)
http://cartola.org/360
http://cartola.org/panoforum



2012/6/11 Tim Nugent 

> erect2cubic might help here:
>
> erect2cubic
> Takes an equirectangular image and produces a .pto file suitable for
> extracting six cube faces.
>
> Usage:
>/usr/local/bin/erect2cubic --erect=myerectangular.tif
> --ptofile=cubic.pto
>
> Options:
>--filespec (panotools format, defaults to 'TIFF_m')
>--roll (degrees)
>--pitch(degrees, use -90 if nadir is in centre)
>--yaw  (degrees, adjust position of first cubeface)
>--face (cubeface size in pixels, defaults to optimum)
>
>
> On 11 June 2012 16:16, Carl von Einem  wrote:
>
>> In the upper areas of an equirectangular image the information is so
>> compressed that it's not easy to use clone tools etc.
>> Usually it helps to reproject to cube faces which have a rectilinear
>> projection and cover 90 x 90 degrees. Especially for the zenith (also the
>> nadir) that helps a lot!
>>
>> So with Hugin, you can load your equirect back into a new project as your
>> input file (lens type: equirectangular, 360 degrees hfov).
>>
>> In "Images" tab set pitch to -90 degrees (in the Fast preview window you
>> can now see the zenith in the center).
>>
>> In "Stitcher" tab set projection to rectilinear and fov to 90 x 90.
>> Press "calculate optimal size" and stitch.
>>
>> With the original panotools this could be done in Photoshop but I bet
>> this would also possible with Kays Python scripts, right?
>>
>> Here is a HowTo for the nadir:
>> 
>> **>
>>
>> Here is more about it in the panotools wiki:
>> 
>> >
>>
>> Cheers,
>> Carl
>>
>> Carlos Eduardo G. Carvalho (Cartola) schrieb am 11.06.12 16:52:
>>
>>> When using "other images" notice that you can repeat the same image as
>>> many times as you need and do masks so that only the sky on it is used.
>>>
>>> Another approach would be to substitute the whole sky for another... a
>>> sky is a sky :)
>>>
>>> Cheers,
>>>
>>> Carlos E G Carvalho (Cartola)
>>> http://cartola.org/360
>>> http://cartola.org/panoforum
>>>
>>>
>>>
>>> 2012/6/11 Calvin McDonald mailto:c...@ckmcdonald.com
>>> >>
>>>
>>>
>>>Carlos:
>>>
>>>Thanks so much for taking the time to respond.  Your tips will help
>>>me out.
>>>
>>>I do play with masking a bit but I wouldn't call it methodical at
>>>all.  I kind of do a hit-and-miss approach as I have little skill at
>>>it.  Occasionally I generate improvement with masks but usually
>>>not.  I haven't tried using other images.  I'll give that a try.  My
>>>PS skills improve with every pano I make.  However, I have a long
>>>way to go to fully use the capability of the tool.  Thanks for the
>>>image editing pointers - they will help.
>>>
>>>Calvin
>>>
>>>
>>>
>>>--
>>>You received this message because you are subscribed to the Google
>>>Groups "Hugin and other free panoramic software" group.
>>>A list of frequently asked questions is available at:
>>>
>>> http://wiki.panotools.org/**Hugin_FAQ
>>>To post to this group, send email to hugin-ptx@googlegroups.com
>>>
>>>
>>>To unsubscribe from this group, send email to
>>>
>>> hugin-ptx+unsubscribe@**googlegroups.com
>>>
>>> >> **>
>>>
>>>For more options, visit this group at
>>>
>>> http://groups.google.com/**group/hugin-ptx
>>>
>>>
>>> --
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>>> Groups "Hugin and other free panoramic software" group.
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>>
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>> To unsubscribe from this group, send email to hu

Re: [hugin-ptx] Help My Skies

[Tim Nugent]

erect2cubic might help here:

erect2cubic
Takes an equirectangular image and produces a .pto file suitable for
extracting six cube faces.

Usage:
   /usr/local/bin/erect2cubic --erect=myerectangular.tif --ptofile=cubic.pto

Options:
   --filespec (panotools format, defaults to 'TIFF_m')
   --roll (degrees)
   --pitch(degrees, use -90 if nadir is in centre)
   --yaw  (degrees, adjust position of first cubeface)
   --face (cubeface size in pixels, defaults to optimum)


On 11 June 2012 16:16, Carl von Einem  wrote:

> In the upper areas of an equirectangular image the information is so
> compressed that it's not easy to use clone tools etc.
> Usually it helps to reproject to cube faces which have a rectilinear
> projection and cover 90 x 90 degrees. Especially for the zenith (also the
> nadir) that helps a lot!
>
> So with Hugin, you can load your equirect back into a new project as your
> input file (lens type: equirectangular, 360 degrees hfov).
>
> In "Images" tab set pitch to -90 degrees (in the Fast preview window you
> can now see the zenith in the center).
>
> In "Stitcher" tab set projection to rectilinear and fov to 90 x 90.
> Press "calculate optimal size" and stitch.
>
> With the original panotools this could be done in Photoshop but I bet this
> would also possible with Kays Python scripts, right?
>
> Here is a HowTo for the nadir:
> 
> **>
>
> Here is more about it in the panotools wiki:
> 
> >
>
> Cheers,
> Carl
>
> Carlos Eduardo G. Carvalho (Cartola) schrieb am 11.06.12 16:52:
>
>> When using "other images" notice that you can repeat the same image as
>> many times as you need and do masks so that only the sky on it is used.
>>
>> Another approach would be to substitute the whole sky for another... a
>> sky is a sky :)
>>
>> Cheers,
>>
>> Carlos E G Carvalho (Cartola)
>> http://cartola.org/360
>> http://cartola.org/panoforum
>>
>>
>>
>> 2012/6/11 Calvin McDonald mailto:c...@ckmcdonald.com
>> >>
>>
>>
>>Carlos:
>>
>>Thanks so much for taking the time to respond.  Your tips will help
>>me out.
>>
>>I do play with masking a bit but I wouldn't call it methodical at
>>all.  I kind of do a hit-and-miss approach as I have little skill at
>>it.  Occasionally I generate improvement with masks but usually
>>not.  I haven't tried using other images.  I'll give that a try.  My
>>PS skills improve with every pano I make.  However, I have a long
>>way to go to fully use the capability of the tool.  Thanks for the
>>image editing pointers - they will help.
>>
>>Calvin
>>
>>
>>
>>--
>>You received this message because you are subscribed to the Google
>>Groups "Hugin and other free panoramic software" group.
>>A list of frequently asked questions is available at:
>>http://wiki.panotools.org/**Hugin_FAQ
>>To post to this group, send email to hugin-ptx@googlegroups.com
>>
>>
>>To unsubscribe from this group, send email to
>>
>> hugin-ptx+unsubscribe@**googlegroups.com
>>
>> > **>
>>
>>For more options, visit this group at
>>
>> http://groups.google.com/**group/hugin-ptx
>>
>>
>> --
>> You received this message because you are subscribed to the Google
>> Groups "Hugin and other free panoramic software" group.
>> A list of frequently asked questions is available at:
>> http://wiki.panotools.org/**Hugin_FAQ
>> To post to this group, send email to hugin-ptx@googlegroups.com
>> To unsubscribe from this group, send email to
>> hugin-ptx+unsubscribe@**googlegroups.com
>> For more options, visit this group at
>> http://groups.google.com/**group/hugin-ptx
>>
>
> --
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> group/hugin-ptx 
>

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Re: [hugin-ptx] Help My Skies

[Carl von Einem]

In the upper areas of an equirectangular image the information is so 
compressed that it's not easy to use clone tools etc.
Usually it helps to reproject to cube faces which have a rectilinear 
projection and cover 90 x 90 degrees. Especially for the zenith (also 
the nadir) that helps a lot!


So with Hugin, you can load your equirect back into a new project as 
your input file (lens type: equirectangular, 360 degrees hfov).


In "Images" tab set pitch to -90 degrees (in the Fast preview window you 
can now see the zenith in the center).


In "Stitcher" tab set projection to rectilinear and fov to 90 x 90.
Press "calculate optimal size" and stitch.

With the original panotools this could be done in Photoshop but I bet 
this would also possible with Kays Python scripts, right?


Here is a HowTo for the nadir:


Here is more about it in the panotools wiki:


Cheers,
Carl

Carlos Eduardo G. Carvalho (Cartola) schrieb am 11.06.12 16:52:

When using "other images" notice that you can repeat the same image as
many times as you need and do masks so that only the sky on it is used.

Another approach would be to substitute the whole sky for another... a
sky is a sky :)

Cheers,

Carlos E G Carvalho (Cartola)
http://cartola.org/360
http://cartola.org/panoforum



2012/6/11 Calvin McDonald mailto:c...@ckmcdonald.com>>

Carlos:

Thanks so much for taking the time to respond.  Your tips will help
me out.

I do play with masking a bit but I wouldn't call it methodical at
all.  I kind of do a hit-and-miss approach as I have little skill at
it.  Occasionally I generate improvement with masks but usually
not.  I haven't tried using other images.  I'll give that a try.  My
PS skills improve with every pano I make.  However, I have a long
way to go to fully use the capability of the tool.  Thanks for the
image editing pointers - they will help.

Calvin



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Re: [hugin-ptx] Help My Skies

[Carlos Eduardo G. Carvalho (Cartola)]

When using "other images" notice that you can repeat the same image as many
times as you need and do masks so that only the sky on it is used.

Another approach would be to substitute the whole sky for another... a sky
is a sky :)

Cheers,

Carlos E G Carvalho (Cartola)
http://cartola.org/360
http://cartola.org/panoforum



2012/6/11 Calvin McDonald 

> Carlos:
>
> Thanks so much for taking the time to respond.  Your tips will help me out.
>
> I do play with masking a bit but I wouldn't call it methodical at all.  I
> kind of do a hit-and-miss approach as I have little skill at it.
> Occasionally I generate improvement with masks but usually not.  I haven't
> tried using other images.  I'll give that a try.  My PS skills improve with
> every pano I make.  However, I have a long way to go to fully use the
> capability of the tool.  Thanks for the image editing pointers - they will
> help.
>
> Calvin
>
>
>
>  --
> You received this message because you are subscribed to the Google Groups
> "Hugin and other free panoramic software" group.
> A list of frequently asked questions is available at:
> http://wiki.panotools.org/Hugin_FAQ
> To post to this group, send email to hugin-ptx@googlegroups.com
> To unsubscribe from this group, send email to
> hugin-ptx+unsubscr...@googlegroups.com
> For more options, visit this group at
> http://groups.google.com/group/hugin-ptx
>

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Re: [hugin-ptx] Help My Skies

[Calvin McDonald]

Carlos:

Thanks so much for taking the time to respond.  Your tips will help me out.

I do play with masking a bit but I wouldn't call it methodical at all.  I 
kind of do a hit-and-miss approach as I have little skill at it.  
Occasionally I generate improvement with masks but usually not.  I haven't 
tried using other images.  I'll give that a try.  My PS skills improve with 
every pano I make.  However, I have a long way to go to fully use the 
capability of the tool.  Thanks for the image editing pointers - they will 
help.

Calvin



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