Skew

Hello

I use a low cost scanner (Mustek 2448CU Pro). This scanner creates pictures
that are not quite rectangular.

Photoshop 8 (skew function) is able to modify my pictures to rectangular
form. But Photoshop 8 is very slow, and not freeware.

Somebody knows a freeware with skew function ? Irfanview doesn't have skew
function.

Thanks for your replies.

Euthymenes wrote:
> Hello
>
> I use a low cost scanner (Mustek 2448CU Pro). This scanner creates pictures
> that are not quite rectangular.
>
> Photoshop 8 (skew function) is able to modify my pictures to rectangular
> form. But Photoshop 8 is very slow, and not freeware.
>
> Somebody knows a freeware with skew function ? Irfanview doesn't have skew
> function.
>
> Thanks for your replies.

Photofiltre will do this:

http://www.photofiltre.com

--
Regards from John Corliss
I don't reply to trolls like Andy Mabbett, Doc (who uses sock puppets)
or Roger Johansson, for instance. No adware, cdware, commercial
software, crippleware, demoware, nagware, PROmotionware, shareware,
spyware, time-limited software, trialware, viruses or warez for me, please.

> Photofiltre will do this:
>
> http://www.photofiltre.com
>

Thanks. It works very fine. Exit Photoshop !

Euthymenes (at point) a écrit :

> Hello
>
> I use a low cost scanner (Mustek 2448CU Pro). This scanner creates pictures
> that are not quite rectangular.
>
> Photoshop 8 (skew function) is able to modify my pictures to rectangular
> form. But Photoshop 8 is very slow, and not freeware.
>
> Somebody knows a freeware with skew function ? Irfanview doesn't have skew
> function.
>
> Thanks for your replies.

Also imageAnalyser, but he calls it "warp"

http://meesoft.logicnet.dk/Analyzer/help/warp.htm#Warp

(btw i could not get very good results for now, with this
interesting program for getting more sharpness on blurred
photos, with deconvolution)

laurent h

On Wed, 29 Mar 2006 12:15:06 +0200, "Euthymenes"
<ah241991(at)myrealbox(point)com>
mysteriously appeared thru the usenet mist to inform us thus...

>Hello
>
>I use a low cost scanner (Mustek 2448CU Pro). This scanner creates pictures
>that are not quite rectangular.
>
>Photoshop 8 (skew function) is able to modify my pictures to rectangular
>form. But Photoshop 8 is very slow, and not freeware.
>
>Somebody knows a freeware with skew function ? Irfanview doesn't have skew
>function.

In Irfanview you can use Ctrl-U to skew a picture (called rotation)
to the left or right but be aware you lose some clarity if you do it
too much.

Thanks

I tried "Image analyzer" but it is difficult to "warp" an image with
precision, because of small size of warp screen.

And the correction seems to be inverted ... Not very easy.

> In Irfanview you can use Ctrl-U to skew a picture (called rotation)
> to the left or right but be aware you lose some clarity if you do it
> too much.

I trid this fonction, but skew is not rotation. I want to transform a
parallelogram to a rectangle ...

Euthymenes wrote:

>>In Irfanview you can use Ctrl-U to skew a picture (called rotation)
>>to the left or right but be aware you lose some clarity if you do it
>>too much.
>
>
> I trid this fonction, but skew is not rotation. I want to transform a
> parallelogram to a rectangle ...
>
>

Euthymenes;

The Gimp (http://gimp.org/) does this. Load the image, click on

tools -> transform tools -> perspective.

Then place your mouse on the image, click & drag.

hth,
-Craig

On Wed, 29 Mar 2006 20:39:45 +0200, "Euthymenes"
<ah241991(at)myrealbox(point)com>
mysteriously appeared thru the usenet mist to inform us thus...

>> In Irfanview you can use Ctrl-U to skew a picture (called rotation)
>> to the left or right but be aware you lose some clarity if you do it
>> too much.
>
>I trid this fonction, but skew is not rotation. I want to transform a
>parallelogram to a rectangle ...

OK. If the skew is only slight, can't you carefully crop?

>>I trid this fonction, but skew is not rotation. I want to transform a
>>parallelogram to a rectangle ...
>
> OK. If the skew is only slight, can't you carefully crop?

I cannot use this function, even for slight skew. Some of pictures I want to
skew must be quite rectangular, with lines and columns.

If I rotate my picture, horizontal lines become horizontal, but vertical
lines are not vertical.

The four angles are not quite 90 degrees. A rotation will not change this.