How do you use "Trim"

G
Posted By
Gary
Sep 22, 2006
Views
1007
Replies
7
Status
Closed
Many of the books on Photoshop CS2 don’t even mention "Trim"; others mention it but do not give explicit instructions on how to use it.

I have 28 TIF pictures scanned in…they are of a document. In all cases, the pictures are of typing and writing on a white background, with the bottom and right side pure black. I want to crop to the size of the white background.

Trim seemed aperfect match to what I want to do, but I can’t get it to work. I didn’t quite understand the meaning if the pixels you select (upper left or lower right): are they the ones you want to trim AWAY?

So I thought I’d try it both ways. In either case nothing changes.

Does anyone have good, complete, instructions on how to use Trim?

How to Master Sharpening in Photoshop

Give your photos a professional finish with sharpening in Photoshop. Learn to enhance details, create contrast, and prepare your images for print, web, and social media.

K
Kingdom
Sep 22, 2006
Gary wrote in
news::

Many of the books on Photoshop CS2 don’t even mention "Trim"; others mention it but do not give explicit instructions on how to use it.
I have 28 TIF pictures scanned in…they are of a document. In all cases, the pictures are of typing and writing on a white background, with the bottom and right side pure black. I want to crop to the size of the white background.

Trim seemed aperfect match to what I want to do, but I can’t get it to work. I didn’t quite understand the meaning if the pixels you select (upper left or lower right): are they the ones you want to trim AWAY?
So I thought I’d try it both ways. In either case nothing changes.
Does anyone have good, complete, instructions on how to use Trim?

http://www.cbtcafe.com/photoshop/trim/index.html


———————————————————— ———— Learning is not attained by chance, it must be sought for with ardor and attended to with diligence.
———————————————————— ————
G
Gary
Sep 22, 2006
Sorry, but it’s still not having any effect on my pictures. I’m beginning to think that the one-pixel selection is not a good idea.

On Fri, 22 Sep 2006 11:52:11 GMT, Kingdom
wrote:

Gary wrote in
news::

Many of the books on Photoshop CS2 don’t even mention "Trim"; others mention it but do not give explicit instructions on how to use it.
I have 28 TIF pictures scanned in…they are of a document. In all cases, the pictures are of typing and writing on a white background, with the bottom and right side pure black. I want to crop to the size of the white background.

Trim seemed aperfect match to what I want to do, but I can’t get it to work. I didn’t quite understand the meaning if the pixels you select (upper left or lower right): are they the ones you want to trim AWAY?
So I thought I’d try it both ways. In either case nothing changes.
Does anyone have good, complete, instructions on how to use Trim?

http://www.cbtcafe.com/photoshop/trim/index.html
MH
Mike Hyndman
Sep 22, 2006
"Gary" wrote in message
Sorry, but it’s still not having any effect on my pictures. I’m beginning to think that the one-pixel selection is not a good idea.
On Fri, 22 Sep 2006 11:52:11 GMT, Kingdom
wrote:

Gary wrote in
news::

Many of the books on Photoshop CS2 don’t even mention "Trim"; others mention it but do not give explicit instructions on how to use it.
I have 28 TIF pictures scanned in…they are of a document. In all cases, the pictures are of typing and writing on a white background, with the bottom and right side pure black. I want to crop to the size of the white background.

Trim seemed aperfect match to what I want to do, but I can’t get it to work. I didn’t quite understand the meaning if the pixels you select (upper left or lower right): are they the ones you want to trim AWAY?
So I thought I’d try it both ways. In either case nothing changes.
Does anyone have good, complete, instructions on how to use Trim?

http://www.cbtcafe.com/photoshop/trim/index.html

The problem you have with the partial black border (bottom and RHS) should have been addressed after the first one was scanned at full platten instead of just the document dimensions. I have only ever tried the trim tool once, many moons ago and got the same result you did. I used the crop tool from then on.

MH
MH
Mike Hyndman
Sep 22, 2006
"Mike Hyndman" wrote in message
"Gary" wrote in message
Sorry, but it’s still not having any effect on my pictures. I’m beginning to think that the one-pixel selection is not a good idea.
On Fri, 22 Sep 2006 11:52:11 GMT, Kingdom
wrote:

Gary wrote in
news::

Many of the books on Photoshop CS2 don’t even mention "Trim"; others mention it but do not give explicit instructions on how to use it.
I have 28 TIF pictures scanned in…they are of a document. In all cases, the pictures are of typing and writing on a white background, with the bottom and right side pure black. I want to crop to the size of the white background.

Trim seemed aperfect match to what I want to do, but I can’t get it to work. I didn’t quite understand the meaning if the pixels you select (upper left or lower right): are they the ones you want to trim AWAY?
So I thought I’d try it both ways. In either case nothing changes.
Does anyone have good, complete, instructions on how to use Trim?

http://www.cbtcafe.com/photoshop/trim/index.html

The problem you have with the partial black border (bottom and RHS) should have been addressed after the first one was scanned at full platten instead of just the document dimensions. I have only ever tried the trim tool once, many moons ago and got the same result you did. I used the crop tool from then on.

MH

I’ve just tried it again (blown the dust off it) and the damn thing worked. I made a new document and put a 10% wide border on the bottom and RHS, using the polygon marquee tool and then filled the selection with black. Then Image>Trim and selected bottom right pixel colour, then unchecked top and left in the trim away box, OK’d it and it did the business.

MH
G
Gary
Sep 22, 2006
Since your test was an artificially constructed one, I am beginning to feel even more strongly that the one-pixel selection is the culprit. This would be especially true if there was any noise in the border.

Thank you for trying, Mike. I really appreciate your efforts.

On Fri, 22 Sep 2006 18:02:20 +0100, "Mike Hyndman" wrote:

"Mike Hyndman" wrote in message
"Gary" wrote in message
Sorry, but it’s still not having any effect on my pictures. I’m beginning to think that the one-pixel selection is not a good idea.
On Fri, 22 Sep 2006 11:52:11 GMT, Kingdom
wrote:

Gary wrote in
news::

Many of the books on Photoshop CS2 don’t even mention "Trim"; others mention it but do not give explicit instructions on how to use it.
I have 28 TIF pictures scanned in…they are of a document. In all cases, the pictures are of typing and writing on a white background, with the bottom and right side pure black. I want to crop to the size of the white background.

Trim seemed aperfect match to what I want to do, but I can’t get it to work. I didn’t quite understand the meaning if the pixels you select (upper left or lower right): are they the ones you want to trim AWAY?
So I thought I’d try it both ways. In either case nothing changes.
Does anyone have good, complete, instructions on how to use Trim?

http://www.cbtcafe.com/photoshop/trim/index.html

The problem you have with the partial black border (bottom and RHS) should have been addressed after the first one was scanned at full platten instead of just the document dimensions. I have only ever tried the trim tool once, many moons ago and got the same result you did. I used the crop tool from then on.

MH

I’ve just tried it again (blown the dust off it) and the damn thing worked. I made a new document and put a 10% wide border on the bottom and RHS, using the polygon marquee tool and then filled the selection with black. Then Image>Trim and selected bottom right pixel colour, then unchecked top and left in the trim away box, OK’d it and it did the business.
MH
MH
Mike Hyndman
Sep 22, 2006
"Gary" wrote in message
Since your test was an artificially constructed one, I am beginning to feel even more strongly that the one-pixel selection is the culprit. This would be especially true if there was any noise in the border.
Thank you for trying, Mike. I really appreciate your efforts.>
Gary,
No problemo 😉
Did you try and do what I did and see if it works? You could try it on one of your existing files by dragging a couple of guides out to encompass the area you want to trim, then with the polygon marquee tool, make a selection using the guides, around the area to be trimmed. Then using the paint bucket, fill the selection with any solid colour, then try and use the trim function. If it works, it would suggest there is some fuzziness element present in the scan that is preventing the trim operation. I would be surprised if a scan of a platten was a uniform colour, try moving around it with the colour picker and see what variations show up.

HTH
Mike H
G
Gary
Sep 23, 2006
Well, I tried it…completely "cleaned" the border. Still I’m not getting a trim. I think it’s time to give up.

On Fri, 22 Sep 2006 19:42:50 +0100, "Mike Hyndman" wrote:

"Gary" wrote in message
Since your test was an artificially constructed one, I am beginning to feel even more strongly that the one-pixel selection is the culprit. This would be especially true if there was any noise in the border.
Thank you for trying, Mike. I really appreciate your efforts.>
Gary,
No problemo 😉
Did you try and do what I did and see if it works? You could try it on one of your existing files by dragging a couple of guides out to encompass the area you want to trim, then with the polygon marquee tool, make a selection using the guides, around the area to be trimmed. Then using the paint bucket, fill the selection with any solid colour, then try and use the trim function. If it works, it would suggest there is some fuzziness element present in the scan that is preventing the trim operation. I would be surprised if a scan of a platten was a uniform colour, try moving around it with the colour picker and see what variations show up.

HTH
Mike H

How to Master Sharpening in Photoshop

Give your photos a professional finish with sharpening in Photoshop. Learn to enhance details, create contrast, and prepare your images for print, web, and social media.

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