I have a photo which was taken looking upwards to high on a wall and I
want to deform it to get a picture looking straight on. Now it seems
to me that there ought to be some software gizmo to do this but what
is it called? Googling on picture deformation doesnt come up with
anything useful

Anna

Anna Kettle wrote:
I have a photo which was taken looking upwards to high on a wall and I
want to deform it to get a picture looking straight on. Now it seems
to me that there ought to be some software gizmo to do this but what
is it called? Googling on picture deformation doesnt come up with
anything useful

Google "Perspective Correction"

--
Adrian C

On Wed, 14 Jan 2009 15:41:21 +0000, Anna Kettle wrote:

I have a photo which was taken looking upwards to high on a wall and I
want to deform it to get a picture looking straight on. Now it seems
to me that there ought to be some software gizmo to do this but what
is it called? Googling on picture deformation doesnt come up with
anything useful

Anna

=========================================
Morphing - 'Morpheus', I think if you're using Windows.

Cic.

--
==========================================
Using Ubuntu Linux
Windows shown the door
==========================================

On Wed, 14 Jan 2009 15:44:22 +0000, Adrian C
wrote:

Anna Kettle wrote:
I have a photo which was taken looking upwards to high on a wall and I
want to deform it to get a picture looking straight on. Now it seems
to me that there ought to be some software gizmo to do this but what
is it called? Googling on picture deformation doesnt come up with
anything useful

Google "Perspective Correction"

--
Adrian C

Ah! Thanks

Anna

"Anna Kettle" wrote in message
...
I have a photo which was taken looking upwards to high on a wall and I
want to deform it to get a picture looking straight on. Now it seems
to me that there ought to be some software gizmo to do this but what
is it called? Googling on picture deformation doesnt come up with
anything useful

Most photo editing software will let you do this. Try "Gimp" which is free.
Photofiltre (again free) can do this too. It's rather more basic but is also
easier to use. (It's under the "edit/transform" sub menu).

http://www.gimp.org/
http://photofiltre.free.fr/download_en.htm

HTH

Tim

Anna Kettle coughed up some electrons that declared:

I have a photo which was taken looking upwards to high on a wall and I
want to deform it to get a picture looking straight on. Now it seems
to me that there ought to be some software gizmo to do this but what
is it called? Googling on picture deformation doesnt come up with
anything useful

Anna

Gimp (www.gimp.org) can do reasonable perspective correction. Runs equally
well on Linux and Windows and is free (and very very solid).

Cheers

Tim

"Anna Kettle" wrote in message
...
I have a photo which was taken looking upwards to high on a wall and I
want to deform it to get a picture looking straight on. Now it seems
to me that there ought to be some software gizmo to do this but what
is it called? Googling on picture deformation doesnt come up with
anything useful

Anna


Hi Anna

Send it to me and I'll run it through photoshop and return.

mark

mark wrote:
"Anna Kettle" wrote in message
...
I have a photo which was taken looking upwards to high on a wall and
I want to deform it to get a picture looking straight on. Now it
seems to me that there ought to be some software gizmo to do this
but what is it called? Googling on picture deformation doesnt come
up with anything useful

Anna


Hi Anna

Send it to me and I'll run it through photoshop and return.

Somewhat against the D-I-Y philosophy of the group though surely? ;-)

Tim

Anna Kettle wrote:

I have a photo which was taken looking upwards to high on a wall and I
want to deform it to get a picture looking straight on. Now it seems
to me that there ought to be some software gizmo to do this but what
is it called?

Photoshop.

"Tim Downie" wrote in message
...
mark wrote:
"Anna Kettle" wrote in message
...
I have a photo which was taken looking upwards to high on a wall and
I want to deform it to get a picture looking straight on. Now it
seems to me that there ought to be some software gizmo to do this
but what is it called? Googling on picture deformation doesnt come
up with anything useful

Anna


Hi Anna

Send it to me and I'll run it through photoshop and return.

Somewhat against the D-I-Y philosophy of the group though surely? ;-)

Tim



Well that's you off her Christmas card list!

mark

http://www.gimp.org/

gimp is open source and works on windows macs and unix
and does almost everything photoshop does..
so its worth learning as you can download it anywhere

tools/ transform tools /perspective

dont know how to do it though...

I'd start by drawing a box on it in a new layer which you want to be at
right angles,
then try various tranformation...



Anna Kettle wrote:
On Wed, 14 Jan 2009 15:44:22 +0000, Adrian C
wrote:

Anna Kettle wrote:
I have a photo which was taken looking upwards to high on a wall and I
want to deform it to get a picture looking straight on. Now it seems
to me that there ought to be some software gizmo to do this but what
is it called? Googling on picture deformation doesnt come up with
anything useful
Google "Perspective Correction"

--
Adrian C

Ah! Thanks

Anna

sorry i wrote before reading all messages -
i agree!

Tim S wrote:
Anna Kettle coughed up some electrons that declared:

I have a photo which was taken looking upwards to high on a wall and I
want to deform it to get a picture looking straight on. Now it seems
to me that there ought to be some software gizmo to do this but what
is it called? Googling on picture deformation doesnt come up with
anything useful

Anna

Gimp (www.gimp.org) can do reasonable perspective correction. Runs equally
well on Linux and Windows and is free (and very very solid).

Cheers

Tim

Anna Kettle coughed up some electrons that declared:

I have a photo which was taken looking upwards to high on a wall and I
want to deform it to get a picture looking straight on. Now it seems
to me that there ought to be some software gizmo to do this but what
is it called? Googling on picture deformation doesnt come up with
anything useful

Anna

Here you go Anna,

http://www.dionic.net/wibble.png

That shows Gimp with a photo loaded and the correct tool (the depressed
button on the top left window). Set the same settings in the middle left
window ("corrective" mode is the crucial one), set teh grid (just click and
drag corners about) in the main picture.

The aim is to line the grid lines up with things you believe should be
parallel, eg the vertices of your building.

Hit "Transform" on the bottom left window - job done. Save file. CTRL-Z
or "Undo" goes back if you don;t like it.

http://gimp-win.sourceforge.net/stable.html

Gets you Gimp for Windows - just run the installer. Better than anything
else that's free, true open source, competently built for Windows as well
and Linux and Mac. It's a bit like photoshop but with less plugins and
rather less money!

Cheers

Tim

On Wed, 14 Jan 2009 15:41:21 +0000, Anna Kettle wrote:

I have a photo which was taken looking upwards to high on a wall and I
want to deform it to get a picture looking straight on. Now it seems
to me that there ought to be some software gizmo to do this but what
is it called? Googling on picture deformation doesnt come up with
anything useful

Anna

The Gimp can do it - I often take photos off-axis so the flash doesn't
glare back off reflective surfaces (or because I can't reach to get
perpendicular to the object I'm photographing) and correct them with the
gimp's perspective tool. See e.g the 'K' boots sign on
http://stumbles.org.uk/Stumbles/ (though I think I got the aspect ratio
wrong).


--
John Stumbles

Many hands make light work. Too many cooks spoil the broth.

Anna Kettle wrote:
I have a photo which was taken looking upwards to high on a wall and I
want to deform it to get a picture looking straight on. Now it seems
to me that there ought to be some software gizmo to do this but what
is it called? Googling on picture deformation doesnt come up with
anything useful

Anna

Mm. Ive done this in Corel DRAW by importing a bitmap and stretching it
a bit.

There is such software, and photoshop probably does what you want.

Or ask to borrow a 16mm lens next time ;-)

On Wed, 14 Jan 2009 15:41:21 GMT, Anna Kettle wrote:

I have a photo which was taken looking upwards to high on a wall and I
want to deform it to get a picture looking straight on. Now it seems
to me that there ought to be some software gizmo to do this but what
is it called? Googling on picture deformation doesnt come up with
anything useful

pedant
The true answer is that this is impossible. You can counter the perspective
effect - which is the solution offered by others - but the viewpoint (which
is the basis of the question you actually asked) can't be altered.
/pedant

Appelation Controlee wrote:

pedant
The true answer is that this is impossible. You can counter the perspective
effect - which is the solution offered by others - but the viewpoint (which
is the basis of the question you actually asked) can't be altered.
/pedant

True, but there are specialist camera lenses that can shift it. Only a
few mm shifting or tilting the lens, but seems to make the difference
for shots of buildings making verticals stand up.

http://www.uscoles.com/pclens.htm

http://www.letsgodigital.org/en/1934...ontrol-lenses/

--
Adrian C

Tim S -I have downloaded Gimp and successfully followed your
directions. Thankyou!

mark - thanks for offering to do if for me but I expect I shall have
to do it again so its best I learn to do it myself

TNP - I will be banging on your door :-)

Anna

Anna Kettle coughed up some electrons that declared:

Tim S -I have downloaded Gimp and successfully followed your
directions. Thankyou!

Now you're on a roll, here's some other cool things you can do with your
photos:

1 - Fix colour cast, manually - or by picking known black, white or grey
points in the picture. (Colours/Levels options)

2 - Sharpen (slightly) and blur images

3 - Non linearly alter the contrast, good for bringing out stuff in the
shadows. (Colours/curves)

As well as all the obvious one, like cutting and cropping.

It's good for overlaying text too, if you want to annotate anything for your
website.

The best general tip is: right click and hold over the picture - all
relevant menus pop up and if the feature is available, it's in that menu
somewhere.

Cheers

Tim

On Jan 14, 3:55*pm, Tim S wrote:
Anna Kettle coughed up some electrons that declared:

I have a photo which was taken looking upwards to high on a wall and I
want to deform it to get a picture looking straight on. Now it seems
to me that there ought to be some software gizmo to do this but what
is it called? Googling on picture deformation doesnt come up with
anything useful

Anna

Gimp (www.gimp.org) can do reasonable perspective correction. Runs equally
well on Linux and Windows and is free (and very very solid).


And virtually impenetrable to a new user, last time I looked. It helps
if you know what you want to do and how to do it first. The help was
useless for someone new to this kind of software, never having used
photoshop either.

MBQ

Man at B&Q coughed up some electrons that declared:

On Jan 14, 3:55*pm, Tim S wrote:
Anna Kettle coughed up some electrons that declared:

I have a photo which was taken looking upwards to high on a wall and I
want to deform it to get a picture looking straight on. Now it seems
to me that there ought to be some software gizmo to do this but what
is it called? Googling on picture deformation doesnt come up with
anything useful

Anna

Gimp (www.gimp.org) can do reasonable perspective correction. Runs
equally well on Linux and Windows and is free (and very very solid).


And virtually impenetrable to a new user, last time I looked. It helps
if you know what you want to do and how to do it first. The help was
useless for someone new to this kind of software, never having used
photoshop either.

MBQ

Well, I would class it as a real man's tool rather than a holiday-snaps toy.
For the odd bit of contrast adjustment and red-eye fixing, use whatever
came free with the camera.

I had difficulty the first time I used it - it was discovering that "right
click" paradigm was it's standard way of doing things that got me going
(this was years ago).

They do have everything on the main image menu now, which helps.

It's one of those things - for the want of some initial effort, it can be a
very useful tool (even for holiday snaps) and there are some good tutorial
books (1/2" thin and to the point) available.

Not bad for something that is perhaps only one level down from software
costing 500 quid.



Cheers

Tim

Huge coughed up some electrons that declared:

On Thu, 15 Jan 2009 03:36:32 -0800, Man at B&Q wrote:

And virtually impenetrable to a new user, last time I looked. It helps
if you know what you want to do and how to do it first. The help was
useless for someone new to this kind of software, never having used
photoshop either.

Photoshop's no better...



Once I warez'd a copy of Photoshop just to see how it compared to gimp. It
actually felt quite similar to gimp. Deleted it withing a couple of days
and didn't feel I was missing much.

I think you are paying for brand recognition, better colour-depth (a long
standing compaint about gimp from people who want publishing quality) and a
boat load of very good plugins bundled in.

There are good plugins for gimp outside of it's core set, google for "gimp
registry" - takes a bit more effort to locate, install and decide if it was
worth the effort - but the value for money is good(!)

Cheers

Tim

"Adrian C" wrote in message
...
Appelation Controlee wrote:

pedant
The true answer is that this is impossible. You can counter the
perspective
effect - which is the solution offered by others - but the viewpoint
(which
is the basis of the question you actually asked) can't be altered.
/pedant

True, but there are specialist camera lenses that can shift it. Only a few
mm shifting or tilting the lens, but seems to make the difference for
shots of buildings making verticals stand up.

You need one that shifts to correct perspective.
One that tilts can change the depth of focus a bit but it doesn't correct
perspective.

Huge wrote:

For basic fixes, Google Picassa is *much* better.


For even better basic, www.picnik.com

I've given up on complicated installed packages for what I do. The
integration of picnik within flickr is quite useful as well.

--
Adrian C

Huge wrote:
On Thu, 15 Jan 2009 03:36:32 -0800, Man at B&Q wrote:

On Jan 14, 3:55 pm, Tim S wrote:
Anna Kettle coughed up some electrons that declared:

I have a photo which was taken looking upwards to high on a wall and
I want to deform it to get a picture looking straight on. Now it
seems to me that there ought to be some software gizmo to do this but
what is it called? Googling on picture deformation doesnt come up
with anything useful
Anna
Gimp (www.gimp.org) can do reasonable perspective correction. Runs
equally well on Linux and Windows and is free (and very very solid).


And virtually impenetrable to a new user, last time I looked. It helps
if you know what you want to do and how to do it first. The help was
useless for someone new to this kind of software, never having used
photoshop either.

Photoshop's no better...





PhotoImpact is more of a happy medium

george (dicegeorge) wrote:
http://www.gimp.org/

gimp is open source and works on windows macs and unix
and does almost everything photoshop does..
so its worth learning as you can download it anywhere

tools/ transform tools /perspective

dont know how to do it though...


http://www.templot.com/martweb/info_files/gimp_track.htm

http://www.fsdeveloper.com/wiki/index.php?title=Photo_perspective_correction_with_ the_GIMP

--
djc @work

On Thu, 15 Jan 2009 10:31:02 +0000, Adrian C wrote:

Appelation Controlee wrote:

pedant
The true answer is that this is impossible. You can counter the perspective
effect - which is the solution offered by others - but the viewpoint (which
is the basis of the question you actually asked) can't be altered.
/pedant

True, but there are specialist camera lenses that can shift it. Only a
few mm shifting or tilting the lens, but seems to make the difference
for shots of buildings making verticals stand up.

http://www.uscoles.com/pclens.htm

http://www.letsgodigital.org/en/1934...ontrol-lenses/

If the subject is a plane surface, and you're after an image that is an
accurate shape (what we used to colloquially refer to as "square"), the
image plane of the camera must be parallel to that of the subject.
If you have a viewpoint that is perpendicular to the plane of the subject,
that is easily achieved.
So-called perspective control lenses have an image circle larger than the
diameter of the image plane, so that the lens can be laterally displaced to
the extent necessary to frame the subject area you want, whilst preserving
the parallel relationship between subject and image planes.

"Appelation Controlee" wrote in message
.. .
On Wed, 14 Jan 2009 15:41:21 GMT, Anna Kettle wrote:

I have a photo which was taken looking upwards to high on a wall and I
want to deform it to get a picture looking straight on. Now it seems
to me that there ought to be some software gizmo to do this but what
is it called? Googling on picture deformation doesnt come up with
anything useful

pedant
The true answer is that this is impossible. You can counter the
perspective
effect - which is the solution offered by others - but the viewpoint
(which
is the basis of the question you actually asked) can't be altered.
/pedant

I would agree, you can make things parallel but you can't overcome
perspective compression . e.g., a photo of a tall block of flats, you can
make the sides parallel but the flats will look progressively squished as
you progress upwards.

mark

"Anna Kettle" wrote in message
...
I have a photo which was taken looking upwards to high on a wall and I
want to deform it to get a picture looking straight on. Now it seems
to me that there ought to be some software gizmo to do this but what
is it called? Googling on picture deformation doesnt come up with
anything useful

Anna


This is user friendly and free:
http://www.freeserifsoftware.com/sof...us/default.asp


It has this tool:

Deform Tool
The versatile Deform tool lets you rotate, resize, skew, reshape and
add perspective to any selection or layer. Powerful, yet easy to master,
you'll be amazed by the look you can achieve with this tool.



mark

Appelation Controlee wrote:
On Wed, 14 Jan 2009 15:41:21 GMT, Anna Kettle wrote:

I have a photo which was taken looking upwards to high on a wall and I
want to deform it to get a picture looking straight on. Now it seems
to me that there ought to be some software gizmo to do this but what
is it called? Googling on picture deformation doesnt come up with
anything useful

pedant
The true answer is that this is impossible. You can counter the perspective
effect - which is the solution offered by others - but the viewpoint (which
is the basis of the question you actually asked) can't be altered.
/pedant
well it can be intelligently INTERPOLATED.

clumsy ******* wrote:
"dennis@home" wrote:

True, but there are specialist camera lenses that can shift it. Only a few
mm shifting or tilting the lens, but seems to make the difference for
shots of buildings making verticals stand up.
You need one that shifts to correct perspective.

and they tend to be horribly expensive. If you can work with a high
quality input and avoid being too extreme in the change, post
processing is fine. (in extreme cases, say fisheye to "normal"
conversions, you can get purple or green fringing, due to something to
do with chromatic aberrations or whatever. To eliminate that [I can
only talk of PS] you go into saturation and use the eyedropper to
select the colour of the fringe and then desaturate it a fair bit).

Thinks: I wonder if anybody actually wanted to know that?

Oh.. I did a sunset shot and got a red fringe round a statue.

Wife photoshopped it out. And a recalcitrant lamp post too.

Final image was great.

Anna Kettle wrote:
Tim S -I have downloaded Gimp and successfully followed your
directions. Thankyou!

mark - thanks for offering to do if for me but I expect I shall have
to do it again so its best I learn to do it myself

TNP - I will be banging on your door :-)


Feel free.


Anna

On Jan 14, 2:13*pm, "Tim Downie"
wrote:
mark wrote:
"Anna Kettle" wrote in message
...
I have a photo which was taken looking upwards to high on a wall and
I want to deform it to get a picture looking straight on. Now it
seems to me that there ought to be some software gizmo to do this
but what is it called? Googling on picture deformation doesnt come
up with anything useful

Anna

Hi Anna

Send it to me and I'll run it through photoshop and return.

Somewhat against the D-I-Y philosophy of the group though surely? ;-)

Tim

Nah. Helping hands. Rather like getting your neighbour to assist you!
Except doing it remotely and electronically.
P.S. My neighbour fixing the heater blower in his commercial truck
(lorry) came over looking for wiring connectors; fortunately we were
able to find some. I'll get the assistance back and more anytime I
need it.
Day before it was another good neighbour who needed a certain size
fuse for a radio. We had one and a spare or two. Again anytime we need
a helping hand, a drive to the airport, check on the house while we
are away etc. those guys will be on the spot and do as good a job or
better than I preventing damage or fixing something. Good neighbours
are worth having (and keeping)!
Cheers.

clumsy ******* wrote:
The Natural Philosopher wrote:

The true answer is that this is impossible. You can counter the perspective
effect - which is the solution offered by others - but the viewpoint (which
is the basis of the question you actually asked) can't be altered.
/pedant
well it can be intelligently INTERPOLATED.

so if I send you a pic of the back, you can turn it round to the
front?

:-)

On Fri, 16 Jan 2009 12:32:34 +0000, The Natural Philosopher
wrote:

Anna Kettle wrote:
Tim S -I have downloaded Gimp and successfully followed your
directions. Thankyou!

mark - thanks for offering to do if for me but I expect I shall have
to do it again so its best I learn to do it myself

TNP - I will be banging on your door :-)


Feel free.

Thankyou I will remember your offer when next time the situation
arises. As it happens on this occasion Gimp was good enough as i was
only using the picture as inspiration for my own design, but sometimes
I want to take good quality photos of parget for use when I give talks

Anna

Anna Kettle wrote:
On Fri, 16 Jan 2009 12:32:34 +0000, The Natural Philosopher
wrote:

Anna Kettle wrote:
Tim S -I have downloaded Gimp and successfully followed your
directions. Thankyou!

mark - thanks for offering to do if for me but I expect I shall have
to do it again so its best I learn to do it myself

TNP - I will be banging on your door :-)

Feel free.

Thankyou I will remember your offer when next time the situation
arises. As it happens on this occasion Gimp was good enough as i was
only using the picture as inspiration for my own design, but sometimes
I want to take good quality photos of parget for use when I give talks


Ah. I'll send mt wife round with a tripod ... she loves that sort of thing.

Anna

On Thu, 15 Jan 2009 20:48:22 -0000, mark wrote:

"Appelation Controlee" wrote in message
.. .
On Wed, 14 Jan 2009 15:41:21 GMT, Anna Kettle wrote:

I have a photo which was taken looking upwards to high on a wall and I
want to deform it to get a picture looking straight on. Now it seems
to me that there ought to be some software gizmo to do this but what
is it called? Googling on picture deformation doesnt come up with
anything useful

pedant
The true answer is that this is impossible. You can counter the
perspective
effect - which is the solution offered by others - but the viewpoint
(which
is the basis of the question you actually asked) can't be altered.
/pedant

I would agree, you can make things parallel but you can't overcome
perspective compression . e.g., a photo of a tall block of flats, you can
make the sides parallel but the flats will look progressively squished as
you progress upwards.

That results from viewpoint.

On Fri, 16 Jan 2009 12:30:10 +0000, The Natural Philosopher wrote:

Appelation Controlee wrote:
On Wed, 14 Jan 2009 15:41:21 GMT, Anna Kettle wrote:

I have a photo which was taken looking upwards to high on a wall and I
want to deform it to get a picture looking straight on. Now it seems
to me that there ought to be some software gizmo to do this but what
is it called? Googling on picture deformation doesnt come up with
anything useful

pedant
The true answer is that this is impossible. You can counter the perspective
effect - which is the solution offered by others - but the viewpoint (which
is the basis of the question you actually asked) can't be altered.
/pedant
well it can be intelligently INTERPOLATED.

Non-sequitur, I think. ;-)