Computer Graphics with Photoshop - Jagged Edges From Rotating Image...

Author

Jagged Edges From Rotating Image...

maria

2005-06-22, 4:14 am

As I said above, I was getting a diiferent size image
when I was rotating an image of a statue taken with the
camera in vertical position. I can correct the situation by choosing
Pixel/Aspect Ratio/D1/DV NTSC Widescreen (1.2) from the Image menu.
However, I now have slightly jagged edges for the statue. How can I
smoothen up those edges? Is there some kind of anitaliasing
that I can apply? I know that antialiasing is available for various
tools. But how can it be used on a given image without using
such tools (like lasso, etc.)?
Thanks!

maria

Caitlin

2005-06-22, 7:14 pm

Xref: newsfeed-west.nntpserver.com comp.graphics.apps.photoshop:182919

<maria> wrote in message news:dokhb1toqd7cb7clr1e6679cid6e0slald@4ax.com...
> As I said above, I was getting a diiferent size image
> when I was rotating an image of a statue taken with the
> camera in vertical position. I can correct the situation by choosing
> Pixel/Aspect Ratio/D1/DV NTSC Widescreen (1.2) from the Image menu.
> However, I now have slightly jagged edges for the statue. How can I
> smoothen up those edges? Is there some kind of anitaliasing
> that I can apply? I know that antialiasing is available for various
> tools. But how can it be used on a given image without using
> such tools (like lasso, etc.)?
> Thanks!
>
> maria

Is your monitor an LCD? If so you are probably not using the native
resolution, which is causing the appearance of jaded lines - check your
monitors manual for what the native resolution should be. Are you viewing
the image at 100% resolution?

Hecate

2005-06-22, 7:14 pm

On Tue, 21 Jun 2005 22:00:30 -0500, maria <> wrote:

>As I said above, I was getting a diiferent size image
>when I was rotating an image of a statue taken with the
>camera in vertical position. I can correct the situation by choosing
>Pixel/Aspect Ratio/D1/DV NTSC Widescreen (1.2) from the Image menu.
>However, I now have slightly jagged edges for the statue. How can I
>smoothen up those edges? Is there some kind of anitaliasing
>that I can apply? I know that antialiasing is available for various
>tools. But how can it be used on a given image without using
>such tools (like lasso, etc.)?
>Thanks!
>
Is it a widescreen? Is it an LCD? What resolution do you have the
monitor set at?

--

Hecate - The Real One
Hecate@newsguy.com
Fashion: Buying things you don't need, with money
you don't have, to impress people you don't like...

maria

2005-06-23, 4:15 am

My monitor is set at 1024x768.
Thanks!

On Wed, 22 Jun 2005 22:54:58 +0100, Hecate <hecate@newsguy.com> wrote:

>On Tue, 21 Jun 2005 22:00:30 -0500, maria <> wrote:
>
>Is it a widescreen? Is it an LCD? What resolution do you have the
>monitor set at?
>
> --
>
>Hecate - The Real One
>Hecate@newsguy.com
>Fashion: Buying things you don't need, with money
>you don't have, to impress people you don't like...

Johan W. Elzenga

2005-06-23, 7:14 am

maria <> wrote:

> On Wed, 22 Jun 2005 22:54:58 +0100, Hecate <hecate@newsguy.com> wrote:
>
>
> My monitor is set at 1024x768.

But is it a normal 3:4 ratio monitor? The jagged edges are almost
certainly not real. They are caused by a wrong setting of your monitor,
so you shouldn't try to 'fix' them but 'fix' that setting.

--
Johan W. Elzenga johan<<at>>johanfoto.nl
Editor / Photographer http://www.johanfoto.nl/

Andrew Morton

2005-06-23, 7:14 am

> As I said above,

Um, if I look above this post on my monitor, I'm looking into the future
relative to this post.

> that I can apply? I know that antialiasing is available for various
> tools. But how can it be used on a given image without using
> such tools (like lasso, etc.)?

The default interpolation method is set in Preferences->General.

Andrew

Hecate

2005-06-23, 7:14 pm

On Wed, 22 Jun 2005 14:55:33 -0500, maria <> wrote:

>My monitor is set at 1024x768.
>Thanks!
>
Yes, but is it a 4:3 ratio monitor or is it a widescreen?

--

Hecate - The Real One
Hecate@newsguy.com
Fashion: Buying things you don't need, with money
you don't have, to impress people you don't like...

John McWilliams

2005-06-23, 7:14 pm

Hecate wrote:
> On Wed, 22 Jun 2005 14:55:33 -0500, maria <> wrote:
>
>
>
> Yes, but is it a 4:3 ratio monitor or is it a widescreen?
>

1024 x 768 = 4/3 ratio.

--
John McWilliams

Caitlin

2005-06-23, 11:14 pm

Xref: newsfeed-west.nntpserver.com comp.graphics.apps.photoshop:182989

"John McWilliams" <jpmcw@comcast.net> wrote in message
news:u5mdnYvbXuEwribfRVn-qw@comcast.com...
> Hecate wrote:
>
> 1024 x 768 = 4/3 ratio.
>

Not an answer to the question....

Also what size is the monitor? For instance for most non-widescreen 17" and
19" LCD monitors have a native resolution of 1280x1024, but many people set
them at different resolutions - which can cause problems. 1024x768 is NOT
the same resolution (1.333 vs. 1.25), so if your native resolution is
1280x1024 you will be looking at distorted images. It took me a week of
nagging, and demonstrating with scanned images to convince someone at work
that they were looking at elongated people in their scans - remarkably a lot
of people are insensitive to such distortions - hence the number of people
who willingly watch a 4x3 TV image stretched on a widescreen TV

johnboy

2005-06-23, 11:14 pm

<maria> wrote in message news:2hgjb1po55dfqbsuu1im1snhc5v0fo9ke4@4ax.com...
> My monitor is set at 1024x768.
> Thanks!

That ain't the point. Use View Actual Pixels.

John McWilliams

2005-06-23, 11:14 pm

Caitlin wrote:
> "John McWilliams" <jpmcw@comcast.net> wrote in message
> news:u5mdnYvbXuEwribfRVn-qw@comcast.com...
>
>
>
> Not an answer to the question....

No, it wasn't a full answer. I guess I was just annoyed at hecate's
replying off a post by John E., repetitously and needlessly.
>
> Also what size is the monitor? For instance for most non-widescreen 17" and
> 19" LCD monitors have a native resolution of 1280x1024, but many people set
> them at different resolutions - which can cause problems. 1024x768 is NOT
> the same resolution (1.333 vs. 1.25), so if your native resolution is
> 1280x1024 you will be looking at distorted images.

Yes, your statements are all correct. But I can't imagine a wide screen
even offering a setting of 4:3 or 5:4 when the true ratio would be more
like 2:1. But, I don't have access to one right now, so I don't know.
It took me a week of
> nagging, and demonstrating with scanned images to convince someone at work
> that they were looking at elongated people in their scans - remarkably a lot
> of people are insensitive to such distortions - hence the number of people
> who willingly watch a 4x3 TV image stretched on a widescreen TV

Yes, I hate when that happens! I also hate it when a broadcaster says
its showing in HD, and then put out a crumby quality 720p picture-
probably "studio enhanced NTSC" or something....

Back to the OP:

Maria- What choices do you have for setting monitor resolution?
--

John McWilliams

>
>

Owen Ransen

2005-06-24, 4:14 am

On Thu, 23 Jun 2005 15:11:56 -0700, John McWilliams
<jpmcw@comcast.net> wrote:

>Hecate wrote:
>
>1024 x 768 = 4/3 ratio.

IF the pixels are square!

Hecate

2005-06-24, 11:14 pm

On Thu, 23 Jun 2005 15:11:56 -0700, John McWilliams
<jpmcw@comcast.net> wrote:

>Hecate wrote:
>
>1024 x 768 = 4/3 ratio.

No, that's the resolution she's using. It doesn't describe the size of
the screen which may be in a different ratio.

--

Hecate - The Real One
Hecate@newsguy.com
Fashion: Buying things you don't need, with money
you don't have, to impress people you don't like...

Hecate

2005-06-24, 11:14 pm

On Thu, 23 Jun 2005 17:02:17 -0700, John McWilliams
<jpmcw@comcast.net> wrote:

[color=darkred]
>
>No, it wasn't a full answer. I guess I was just annoyed at hecate's
>replying off a post by John E., repetitously and needlessly.
It wasn't any answer, except that of showing that you don't understand
the difference between screen size and screen resolution.

If someone wishes to comment, I have the right to reply. If you don't
like that you should go somewhere where your feelings are better
protected.

--

Hecate - The Real One
Hecate@newsguy.com
Fashion: Buying things you don't need, with money
you don't have, to impress people you don't like...

John McWilliams

2005-06-24, 11:14 pm

Hecate wrote:
> On Thu, 23 Jun 2005 15:11:56 -0700, John McWilliams
> <jpmcw@comcast.net> wrote:
>
>
> No, that's the resolution she's using. It doesn't describe the size of
> the screen which may be in a different ratio.
>
Of course, as I said later and which you also replied to.

But there's no wide screen involved, and your question misses the mark.

--

John McWilliams

Hecate

2005-06-25, 11:14 pm

On Fri, 24 Jun 2005 16:47:08 -0700, John McWilliams
<jpmcw@comcast.net> wrote:

>Hecate wrote:
>Of course, as I said later and which you also replied to.

ER, no actually. Caitlin pointed it to you before you said anything.

>But there's no wide screen involved, and your question misses the mark.

How do you know as she hasn't stated to anyone who's asked whether
she's using a widescreen or not. Mindreading?

--

Hecate - The Real One
Hecate@newsguy.com
Fashion: Buying things you don't need, with money
you don't have, to impress people you don't like...