Rotate a Image

"Boobie" wrote in message

PS6.0

total newbie

How can one rotate an image without it getting it all jagged ?

Only rotate at 90, 180, or 270. All other angles create jaggies. Some angles are worse than others, though. You won’t see many jaggies if you only rotate a few degrees.
Jim

"Jim" wrote in message

"Boobie" wrote in message

PS6.0

total newbie

How can one rotate an image without it getting it all jagged ?

Only rotate at 90, 180, or 270. All other angles create jaggies. Some angles are worse than others, though. You won’t see many jaggies if you only rotate a few degrees.
Jim

I’ve never seen the jaggies with rotate, is it only on low res images?

"KatWoman" wrote in message

"Jim" wrote in message

"Boobie" wrote in message

PS6.0

total newbie

How can one rotate an image without it getting it all jagged ?

Only rotate at 90, 180, or 270. All other angles create jaggies. Some angles are worse than others, though. You won’t see many jaggies if you only rotate a few degrees.
Jim

I’ve never seen the jaggies with rotate, is it only on low res images?

The lower the resolution (number of pixels that is) the worse the jaggies will be. I have seen some on images that I obtained from scans (at 2900 dpi) and that I otained from my D70. At small angles, though, I don’t see visible jaggies because I only need to rotate a degree or so. Jim

"Jim"

Only rotate at 90, 180, or 270. All other angles create jaggies. Some angles are worse than others, though. You won’t see many jaggies if you only rotate a few degrees.
Jim

damn that sucks.
so I’ll have to print out the image, then take a digital picture of that image at a rotated angle ?

"Boobie" wrote in message

"Jim"

Only rotate at 90, 180, or 270. All other angles create jaggies. Some angles are worse than others, though. You won’t see many jaggies if you only rotate a few degrees.
Jim

damn that sucks.
so I’ll have to print out the image, then take a digital picture of that image at a rotated angle ?

How are you rotating the image? I’ve never seen jaggies from rotated images & just tried rotating several at different resolutions with no problems. It looks jagged until you accept the rotation, but once entered looks fine (at least at 100%, 50%, etc. viewing magnification.

Flo

"Flo Nelson"

damn that sucks.
so I’ll have to print out the image, then take a digital picture of that image at a rotated angle ?

How are you rotating the image? I’ve never seen jaggies from rotated

images

& just tried rotating several at different resolutions with no problems.

It

looks jagged until you accept the rotation, but once entered looks fine

(at

least at 100%, 50%, etc. viewing magnification.

Flo

well Flo if you can rotate this like btw 20 ~ 30 degree anyway you like without jaggies (on transparent background) …..i will call you daddy

"Boobie" wrote in message

"Jim"

Only rotate at 90, 180, or 270. All other angles create jaggies. Some angles are worse than others, though. You won’t see many jaggies if you only rotate a few degrees.

damn that sucks.
so I’ll have to print out the image, then take a digital picture of that
image at a rotated angle ?

Maybe you should not re-save as JPEG (just guessing). Re-shooting a print-out will lose lots of quality as well, and it may introduce distortion and uneven lighting (if you must, scanning will probably be better).

There are plug-ins that allow higher quality rotation than Photoshop provides, but I suspect there is another reason for what you experience, so let’s fix that first.

Bart

Boobie wrote:

PS6.0

total newbie

How can one rotate an image without it getting it all jagged ?

In Preferences what is your Interpolation setting? Should be Bicubic. That may be it.

Aside from that, as others have noted, a lower rez will produce more jaggies, but once you commit the rotation antialiasing should soften them somewhat.

—
Comic book sketches and artwork:
http://www.sover.net/~hannigan/edjh.html
Comics art for sale:
http://www.sover.net/~hannigan/batsale.html

In article <dgcjvb$k57$>,
"Boobie" wrote:

How can one rotate an image without it getting it all jagged ?

What kind of image is it? You aren’t trying to rotate a GIF, are you?

—
Art, photography, shareware, polyamory, literature, kink: all at http://www.xeromag.com/franklin.html

"Boobie" wrote in message

damn that sucks.
so I’ll have to print out the image, then take a digital picture of that image at a rotated angle ?

No. You are introducing yet an other step of degredation that way.

Are you sure you get jaggies? First try different viewing magnifications after you rotate. Certain steps of magnification cannot fit the pixels of the image and at those steps the image will look more jagged than it would print or display if properly sized.

If you get jaggies nonetheless, then tell us the pixel size of your image. Not ‘rez’, pixels and dimensions.

"tacit" wrote in message

In article <dgcjvb$k57$>,
"Boobie" wrote:

How can one rotate an image without it getting it all jagged ?

What kind of image is it? You aren’t trying to rotate a GIF, are you?
—
Art, photography, shareware, polyamory, literature, kink: all at http://www.xeromag.com/franklin.html

and why in the world would you print and copy it?? why not just CROP the jaggies off the edges?

I’m just guessing, but it probably isn’t the edges that bother the original poster, it’s
fine lines, like ships’s rigging, power lines, fine architectural details (if it’s even a photo)
a) make sure they’re really there (view at 100%) as PS interpolation at odd magnifications can make the image look worse than it is.
b) can you increase the resolution of the original (e.g.100 ppi to 300 ppi)
before you rotate?
c) make sure you’re working in the highest possible bit depth for your image (depends on the image) and that you’re not using paletted or indexed color.

"KatWoman" wrote in message

"tacit" wrote in message

In article <dgcjvb$k57$>,
"Boobie" wrote:

How can one rotate an image without it getting it all jagged ?

What kind of image is it? You aren’t trying to rotate a GIF, are you?
—
Art, photography, shareware, polyamory, literature, kink: all at http://www.xeromag.com/franklin.html

and why in the world would you print and copy it?? why not just CROP the jaggies off the edges?