Re: [darktable-user] full keystone

[Michael]

perspective correction is wonderful! I wish it had the same cropping as
keystone though.

On Tue, Oct 10, 2017 at 7:54 AM, Michael  wrote:

>
> On Tue, Oct 10, 2017 at 7:31 AM, Matthieu Moy <
> matthieu@matthieu-moy.fr> wrote:
>
>> - Original Message -
>> First, have a look at "perspective correction" module. It may do what you
>> want,
>> but essentially in an automatic way.
>>
>> Then, as others pointed out, the 4 lines are actually independent. What
>> makes
>> you think they are not is probably the fact that the way to move the
>> lines is
>> by moving a corner. But you don't need to point the corner to the corner
>> of an
>> object. Just move it along the horizontal line to move the vertical line
>> without
>> touching the horizontal one, and vice versa.
>>
>> Cheers,
>>
>>
> But having the corners connected makes it so difficult. Especially if you
> have fine motor skill problems.don't get me wrong... I haven't discovered
> any problems with any other modules but this one.
> --
> :-)~MIKE~(-:
>



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Re: [darktable-user] full keystone

[Michael]

On Tue, Oct 10, 2017 at 7:31 AM, Matthieu Moy 
wrote:

> - Original Message -
> First, have a look at "perspective correction" module. It may do what you
> want,
> but essentially in an automatic way.
>
> Then, as others pointed out, the 4 lines are actually independent. What
> makes
> you think they are not is probably the fact that the way to move the lines
> is
> by moving a corner. But you don't need to point the corner to the corner
> of an
> object. Just move it along the horizontal line to move the vertical line
> without
> touching the horizontal one, and vice versa.
>
> Cheers,
>
>
But having the corners connected makes it so difficult. Especially if you
have fine motor skill problems.don't get me wrong... I haven't discovered
any problems with any other modules but this one.
-- 
:-)~MIKE~(-:


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Re: [darktable-user] full keystone

[Michael]

On Mon, Oct 9, 2017 at 2:21 PM, Patrick Shanahan wrote:

>
> I have no idea what a "qudangle" is and google doesn't help.
>
> my experience with keystone using usually full straightens a
> rectangle/square object to appear as if viewing from directly in front.
>
> I don't understand your problem, it appears to work correctly for me and
> has for several years now.  and I use it frequently, usually to straighten
> a soccer scoreboard to appear as if viewing from directly in front.


Meant unless you are keystoning on a square or a rectangle you will wind up
with a trapezoid. And then with quite a few of the pictures I do not have a
corner to focus on because another object is in its way. I want to be able
to line up on vertical line and then on a parallel line. Then on a
horizontal and then on one of its parallel line.


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Re: [darktable-user] full keystone

[Patrick Shanahan]

* Michael  [10-09-17 14:08]:
> Only if you have a perfectly square object you're aspecting. Otherwise you
> get a qudangle .
> 
> On Mon, Oct 9, 2017 at 1:50 PM, David Vincent-Jones 
> wrote:
> 
> > The 4 lines are totally independent  simply  try it
> >
> > You might want to try the perspective module first and then if that is
> > not satisfactory the C will make the impossible possible.
> >
> > Between the perspective module and the C dt has extraordinary
> > correction capability.
> >
> > David
> >
> > On 10/09/2017 09:16 AM, Michael wrote:
> > > Nothing about aligning the four lines independent of each other
> > >
> > > On Mon, Oct 9, 2017 at 11:36 AM, Roman Lebedev 
> > wrote:
> > >
> > >> On Mon, Oct 9, 2017 at 6:27 PM, Michael  wrote:
> > >>> I think the four alignment bars should be independent of each other
> > >> instead
> > >>> of having them tied together. I have a picture of a house and I don't
> > >> have a
> > >>> perfect square, I have the side of the house, the top of the house, and
> > >> not
> > >>> totally square windows. Has someone already suggested this?
> > >>> The archive doesn't have anything and I can't find any reference in th
> > >>> manual.
> > >> Are you sure?
> > >> https://www.darktable.org/usermanual/ch03s04.html.php#d0e6177
> > >> "Each line additionally carries a “symmetry” button. If activated (and
> > >> highlighted
> > >> in red) all movements of the affected line will be mirrored by the
> > >> opposite line."
> > >>
> > >>> --
> > >>> :-)~MIKE~(-:
> > >> Roman.
> > >>
> > >>> 
> > >> 
> > >>> darktable user mailing list to unsubscribe send a mail to
> > >>> darktable-user+unsubscr...@lists.darktable.org
> > >>
> > >
> > >
> > >
> > 
> > 
> > darktable user mailing list
> > to unsubscribe send a mail to darktable-user+unsubscribe@
> > lists.darktable.org
> >
> >
> 
> 
> -- 
> :-)~MIKE~(-:
> 
> 
> darktable user mailing list
> to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
> 

I have no idea what a "qudangle" is and google doesn't help.

my experience with keystone using usually full straightens a
rectangle/square object to appear as if viewing from directly in front.

I don't understand your problem, it appears to work correctly for me and
has for several years now.  and I use it frequently, usually to straighten
a soccer scoreboard to appear as if viewing from directly in front.


-- 
(paka)Patrick Shanahan   Plainfield, Indiana, USA  @ptilopteri
http://en.opensuse.orgopenSUSE Community Memberfacebook/ptilopteri
Registered Linux User #207535@ http://linuxcounter.net
Photos: http://wahoo.no-ip.org/piwigo   paka @ IRCnet freenode

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Re: [darktable-user] full keystone

[Michael]

Only if you have a perfectly square object you're aspecting. Otherwise you
get a qudangle .

On Mon, Oct 9, 2017 at 1:50 PM, David Vincent-Jones 
wrote:

> The 4 lines are totally independent  simply  try it
>
> You might want to try the perspective module first and then if that is
> not satisfactory the C will make the impossible possible.
>
> Between the perspective module and the C dt has extraordinary
> correction capability.
>
> David
>
> On 10/09/2017 09:16 AM, Michael wrote:
> > Nothing about aligning the four lines independent of each other
> >
> > On Mon, Oct 9, 2017 at 11:36 AM, Roman Lebedev 
> wrote:
> >
> >> On Mon, Oct 9, 2017 at 6:27 PM, Michael  wrote:
> >>> I think the four alignment bars should be independent of each other
> >> instead
> >>> of having them tied together. I have a picture of a house and I don't
> >> have a
> >>> perfect square, I have the side of the house, the top of the house, and
> >> not
> >>> totally square windows. Has someone already suggested this?
> >>> The archive doesn't have anything and I can't find any reference in th
> >>> manual.
> >> Are you sure?
> >> https://www.darktable.org/usermanual/ch03s04.html.php#d0e6177
> >> "Each line additionally carries a “symmetry” button. If activated (and
> >> highlighted
> >> in red) all movements of the affected line will be mirrored by the
> >> opposite line."
> >>
> >>> --
> >>> :-)~MIKE~(-:
> >> Roman.
> >>
> >>> 
> >> 
> >>> darktable user mailing list to unsubscribe send a mail to
> >>> darktable-user+unsubscr...@lists.darktable.org
> >>
> >
> >
> >
> 
> 
> darktable user mailing list
> to unsubscribe send a mail to darktable-user+unsubscribe@
> lists.darktable.org
>
>


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Re: [darktable-user] full keystone

[David Vincent-Jones]

The 4 lines are totally independent  simply  try it

You might want to try the perspective module first and then if that is
not satisfactory the C will make the impossible possible.

Between the perspective module and the C dt has extraordinary
correction capability.

David

On 10/09/2017 09:16 AM, Michael wrote:
> Nothing about aligning the four lines independent of each other
> 
> On Mon, Oct 9, 2017 at 11:36 AM, Roman Lebedev  wrote:
> 
>> On Mon, Oct 9, 2017 at 6:27 PM, Michael  wrote:
>>> I think the four alignment bars should be independent of each other
>> instead
>>> of having them tied together. I have a picture of a house and I don't
>> have a
>>> perfect square, I have the side of the house, the top of the house, and
>> not
>>> totally square windows. Has someone already suggested this?
>>> The archive doesn't have anything and I can't find any reference in th
>>> manual.
>> Are you sure?
>> https://www.darktable.org/usermanual/ch03s04.html.php#d0e6177
>> "Each line additionally carries a “symmetry” button. If activated (and
>> highlighted
>> in red) all movements of the affected line will be mirrored by the
>> opposite line."
>>
>>> --
>>> :-)~MIKE~(-:
>> Roman.
>>
>>> 
>> 
>>> darktable user mailing list to unsubscribe send a mail to
>>> darktable-user+unsubscr...@lists.darktable.org
>>
> 
> 
> 

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Re: [darktable-user] full keystone

[Michael]

Nothing about aligning the four lines independent of each other

On Mon, Oct 9, 2017 at 11:36 AM, Roman Lebedev  wrote:

> On Mon, Oct 9, 2017 at 6:27 PM, Michael  wrote:
> > I think the four alignment bars should be independent of each other
> instead
> > of having them tied together. I have a picture of a house and I don't
> have a
> > perfect square, I have the side of the house, the top of the house, and
> not
> > totally square windows. Has someone already suggested this?
> > The archive doesn't have anything and I can't find any reference in th
> > manual.
> Are you sure?
> https://www.darktable.org/usermanual/ch03s04.html.php#d0e6177
> "Each line additionally carries a “symmetry” button. If activated (and
> highlighted
> in red) all movements of the affected line will be mirrored by the
> opposite line."
>
> > --
> > :-)~MIKE~(-:
> Roman.
>
> > 
> 
> > darktable user mailing list to unsubscribe send a mail to
> > darktable-user+unsubscr...@lists.darktable.org
>



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Re: [darktable-user] full keystone

[Roman Lebedev]

On Mon, Oct 9, 2017 at 6:27 PM, Michael  wrote:
> I think the four alignment bars should be independent of each other instead
> of having them tied together. I have a picture of a house and I don't have a
> perfect square, I have the side of the house, the top of the house, and not
> totally square windows. Has someone already suggested this?
> The archive doesn't have anything and I can't find any reference in th
> manual.
Are you sure?
https://www.darktable.org/usermanual/ch03s04.html.php#d0e6177
"Each line additionally carries a “symmetry” button. If activated (and
highlighted
in red) all movements of the affected line will be mirrored by the
opposite line."

> --
> :-)~MIKE~(-:
Roman.

> 
> darktable user mailing list to unsubscribe send a mail to
> darktable-user+unsubscr...@lists.darktable.org

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