From brennerqv5 at mcconnellmartin.com  Thu Jun  4 11:37:20 2009
From: brennerqv5 at mcconnellmartin.com (Mariana Fitch)
Date: Thu Jun  4 10:37:33 2009
Subject: [ale] Postcard from a Family Member
Message-ID: <000d01c9e53b$1c8c55c0$6400a8c0@brennerqv5>

    Good day.
     

    Your family member has sent you an ecard from 123greetings.com.
     

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    Your ecard will be available with us for the next 30 days. If you wish to keep the ecard longer, you may save it on your 

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From backwardsh9 at shaharov.com  Sun Jun  7 16:19:58 2009
From: backwardsh9 at shaharov.com (Lillie Knox)
Date: Sun Jun  7 16:21:45 2009
Subject: [ale] =?koi8-r?b?WW91knZlIHJlY2VpdmVkIGEgZ3JlZXRpbmcgZWNhcmQ=?=
Message-ID: <000d01c9e7c6$7983ee40$6400a8c0@backwardsh9>

Good day.
You have received an eCard

To pick up your eCard, open zip attached file

Your card will be aviailable for pick-up beginning for the next 30
days.
Please be sure to view your eCard before the days are up!

We hope you enjoy you eCard.

Thank You!

From vinnyjojo at yahoo.com  Mon Jun 15 14:20:25 2009
From: vinnyjojo at yahoo.com (Joe R)
Date: Mon Jun 15 14:21:00 2009
Subject: [ale] Interpreting "P" transformation data
Message-ID: <292137.44520.qm@web53811.mail.re2.yahoo.com>


Hello all,

I'm trying to use ALE to align a series of images and I'd like to make sure I'm interpreting the transform output correctly. The way it's described, the output for the projective transformation has its origin in the top left corner of the image.

Here's the output for two files that are almost, but not quite, aligned:
P 400.000000 300.000000 -2.000000 -4.812500 -5.250000 295.562500 395.312500 300.687500 397.062500 0.687500 

Looking at --hA, the first coordinate after the size (-2.000000, -4.812500) is at the top left:
P <xmax> <ymax> <tlx> <tly> <blx> <bly> <brx> <bry> <trx> <try>

Is this the correct interpretation? My impression is that it'd lead to a "flipped" image. Thanks!


-joe



      

From dhilvert at gmail.com  Mon Jun 15 15:15:29 2009
From: dhilvert at gmail.com (David Hilvert)
Date: Mon Jun 15 15:15:35 2009
Subject: [ale] Interpreting "P" transformation data
In-Reply-To: <292137.44520.qm@web53811.mail.re2.yahoo.com>
References: <292137.44520.qm@web53811.mail.re2.yahoo.com>
Message-ID: <20090615171529.15a27150.dhilvert@gmail.com>

On Mon, 15 Jun 2009 14:20:25 -0700 (PDT)
Joe R <vinnyjojo@yahoo.com> wrote:

> Hello all,
> 
> I'm trying to use ALE to align a series of images and I'd like to make sure
> I'm interpreting the transform output correctly. The way it's described, the
> output for the projective transformation has its origin in the top left
> corner of the image.
> 
> Here's the output for two files that are almost, but not quite, aligned:
> P 400.000000 300.000000 -2.000000 -4.812500 -5.250000 295.562500 395.312500 300.687500 397.062500 0.687500 
> 
> Looking at --hA, the first coordinate after the size (-2.000000, -4.812500) is at the top left:
> P <xmax> <ymax> <tlx> <tly> <blx> <bly> <brx> <bry> <trx> <try>
> 
> Is this the correct interpretation? My impression is that it'd lead to a
> "flipped" image. Thanks!

The coordinate system has the origin at the top-left, which is a fairly common
placement; hence, it's expected that the top-left coordinates in this example
would be close to zero.


From vinnyjojo at yahoo.com  Mon Jun 15 15:19:48 2009
From: vinnyjojo at yahoo.com (Joe R)
Date: Mon Jun 15 15:20:25 2009
Subject: [ale] Interpreting "P" transformation data
Message-ID: <561738.65557.qm@web53807.mail.re2.yahoo.com>



Ok, so "positive" is down and to the right. Got it.

Thanks again!


-j


--- On Mon, 6/15/09, David Hilvert <dhilvert@gmail.com> wrote:

> From: David Hilvert <dhilvert@gmail.com>
> Subject: Re: [ale] Interpreting "P" transformation data
> To: "Joe R" <vinnyjojo@yahoo.com>
> Cc: ale@ventricle.dyndns.org
> Date: Monday, June 15, 2009, 6:15 PM
> On Mon, 15 Jun 2009 14:20:25 -0700
> (PDT)
> Joe R <vinnyjojo@yahoo.com>
> wrote:
> 
> > Hello all,
> > 
> > I'm trying to use ALE to align a series of images and
> I'd like to make sure
> > I'm interpreting the transform output correctly. The
> way it's described, the
> > output for the projective transformation has its
> origin in the top left
> > corner of the image.
> > 
> > Here's the output for two files that are almost, but
> not quite, aligned:
> > P 400.000000 300.000000 -2.000000 -4.812500 -5.250000
> 295.562500 395.312500 300.687500 397.062500 0.687500 
> > 
> > Looking at --hA, the first coordinate after the size
> (-2.000000, -4.812500) is at the top left:
> > P <xmax> <ymax> <tlx> <tly>
> <blx> <bly> <brx> <bry> <trx>
> <try>
> > 
> > Is this the correct interpretation? My impression is
> that it'd lead to a
> > "flipped" image. Thanks!
> 
> The coordinate system has the origin at the top-left, which
> is a fairly common
> placement; hence, it's expected that the top-left
> coordinates in this example
> would be close to zero.
> 
>