Is there a way to select the difference between two layers?

G
Posted By
gareeeNospam!
May 22, 2004
Views
2100
Replies
8
Status
Closed
I have a changed image I did, and the original.. is there a way with layers, to select the changes I made from the original image?


Gareee

Master Retouching Hair

Learn how to rescue details, remove flyaways, add volume, and enhance the definition of hair in any photo. We break down every tool and technique in Photoshop to get picture-perfect hair, every time.

E
edjh
May 22, 2004
Gareee© wrote:
I have a changed image I did, and the original.. is there a way with layers, to select the changes I made from the original image?
Not sure what you mean by "select the changes". You can set the Blending of the changed layer to Difference. Everything that you didn’t change will then be black. You an make selections from channels that way I suppose or make a merged copy and make a selection from it.


Comic book sketches and artwork:
http://www.sover.net/~hannigan/edjh.html
Comics art for sale:
http://www.sover.net/~hannigan/batsale.html
G
gareeeNospam!
May 23, 2004
that would probably do the trick.. I’ll try that…

"edjh" wrote in message
Gareee
G
gareeeNospam!
May 23, 2004
"edjh" wrote in message
Gareee
N
nomail
May 23, 2004
Gareee© <gareeeNospam!@charter.net> wrote:

"edjh" wrote in message
Gareee© wrote:
I have a changed image I did, and the original.. is there a way with layers, to select the changes I made from the original image?
Not sure what you mean by "select the changes". You can set the Blending of the changed layer to Difference. Everything that you didn’t change will then be black. You an make selections from channels that way I suppose or make a merged copy and make a selection from it.

I changed the layer to difference, but as I thought, you can see only the changed image parts, but you can’t select *just them* in any way.

Sure you can. After setting the layer to "Difference", go to "Select – Colour Range", choose "Sampled Colors" and click somewhere in the black area. That will select everything that was NOT changed, so your last step is to inverse the selection.


Johan W. Elzenga johan<<at>>johanfoto.nl Editor / Photographer http://www.johanfoto.nl/
G
gareeeNospam!
May 23, 2004
"Johan W. Elzenga" wrote in message
Gareee
N
nomail
May 23, 2004
Gareee© <gareeeNospam!@charter.net> wrote:

I changed the layer to difference, but as I thought, you can see only
the
changed image parts, but you can’t select *just them* in any way.

Sure you can. After setting the layer to "Difference", go to "Select – Colour Range", choose "Sampled Colors" and click somewhere in the black area. That will select everything that was NOT changed, so your last step is to inverse the selection.

I tried that, but some of the changes were near black colors, and they always were selected as well.

If they are changes, they should be selected, shouldn’t they?

I finally just ended up redoing the changes, and this time saved them in a psd preserving the layers. There has to be a layer/selection combo to solve something like this though. I tried googling, but adding difference to the search gives you about 28,000 hits.

It is always possible to select only pure black, without any tolerance. Use the Magic Wand tool with tolerance set to zero (and "Continuous" NOT selected).


Johan W. Elzenga johan<<at>>johanfoto.nl Editor / Photographer http://www.johanfoto.nl/
E
edjh
May 23, 2004
I tried that, but some of the changes were near black colors, and they always were selected as well. I finally just ended up redoing the changes, and this time saved them in a psd preserving the layers. There has to be a layer/selection combo to solve something like this though. I tried googling, but adding difference to the search gives you about 28,000 hits.
You should always save a layered editable file (psd) in case you need to make changes.


Comic book sketches and artwork:
http://www.sover.net/~hannigan/edjh.html
Comics art for sale:
http://www.sover.net/~hannigan/batsale.html
G
gareeeNospam!
May 23, 2004
"edjh" wrote in message
I tried that, but some of the changes were near black colors, and they always were selected as well. I finally just ended up redoing the
changes,
and this time saved them in a psd preserving the layers. There has to be
a
layer/selection combo to solve something like this though. I tried
googling,
but adding difference to the search gives you about 28,000 hits.
You should always save a layered editable file (psd) in case you need to make changes.

Yep.. usually, I do. But in this case I didn’t, and the bottom layer was a copyrighted image, and not redistributable. (There was a possibility of it being so, but that changed)

Now I can supply the layers, and they can just add the original bottom layer themselves, and then save as a jpg. (It’s for a 3d character’s "skin") I was hoping not to have to redo it, but since I had the original and my redo, it was pretty easy to see what I had changed, and what I didn’t. It was about an extra 1/2 hour’s work, but still, it would have been nice to not redo it.


Gareee

Must-have mockup pack for every graphic designer 🔥🔥🔥

Easy-to-use drag-n-drop Photoshop scene creator with more than 2800 items.

Related Discussion Topics

Nice and short text about related topics in discussion sections