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selections,layers and all that jazz


tepot 10 4.4k United Kingdom
27 Jul 2012 5:53AM
I have an image on screen and i make a selection, i create another layer above the first one then hit the liquify tool and it tells me no pixels are selected which i understand, what is the trick to get the modified portion onto another layer so leaving the original intact? i have read it somewhere but can't for the life of me think where.

Terry.

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isleofmull 8 12 Scotland
27 Jul 2012 6:20AM
Once you have made your selection, do not create a new, blank layer..........simply (on a Windows machine) hit Ctrl+J and that will put the selection onto it's own layer.

This assumes you have Photoshop.......other software may differ.
puertouk 3 1.1k 17 United Kingdom
27 Jul 2012 10:54AM
You should never work on your original image, as you will not be able to get it back to it's original state. You've obviously got Photoshop, because you mention the liquify tool, so you can either drag your background layer to create a new layer, which will give you a copy of your background layer or use the shortcut, Ctrl + J or go to the top and under layer, choose duplicate layer. Now, when you work on the background copy, you will not effect the original image. With PS, there are certain things you can do with a blank layer and obviously things you can't do. If you want to learn more about Photoshop for free, go to Youtube and you will find a mountain of video tutorials. Some are very good and some are very bad. There's Kelby media group, Iceflow studios and Gavtrain.com to name a few. Hope this helps
Stephen
tepot 10 4.4k United Kingdom
27 Jul 2012 7:37PM
ok i got it figured, i must have been asleep last night lol

I make my selection, then i copy and paste the selection to a new layer and then i can work on the new layer....oh wait, thats similar to what isleofmull said, in fact the way isleofmull described it makes it even easier,

cheers

Terry.
KingBee e2
8 398 2 Scotland
31 Jul 2012 9:32PM

Quote:You should never work on your original image, as you will not be able to get it back to it's original state.


Umm, sorry, can I just query this? I always work with Raw files and every textbook you'll ever read will tell you that no matter how many changes you make to your Raw file, you'll never alter it permanently in any shape or form (provided of course you save your changes under another file name extension, eg .PSD). In fact, when I open a file in ACR in Elements 10, and it's one I may have done a bit of work on previously within ACR, all I need to do to get it back to its original state is to click on the drop-down menu in the "Basic" bar, then click on Camera Raw Defaults, and that's it - the image goes back to the way it was when it came out of the camera. Or, at least, it certainly looks like it. Sure, I know it's always better to create a duplicate layer or whatever, in case you screw up the original file irreparably, but I never bother.

Am I missing something here? Am I getting it wrong? If so, for God's sake could someone please tell me now?
Carabosse e2
11 39.7k 269 England
31 Jul 2012 9:42PM

Quote:Am I missing something here? Am I getting it wrong? If so, for God's sake could someone please tell me now?


You cannot alter a RAW file, i.e. you cannot make changes to it and save them in RAW format. Hope that puts your mind at rest. Smile
Nick_w e2
7 4.1k 99 England
31 Jul 2012 9:49PM

Quote:You should never work on your original image, as you will not be able to get it back to it's original state.


I think what the poster meant is when you take the image to PS it's good practice to get into the habit of copying the background layer - yes the RAW files still there, but it's frustrating having to re-open it again if you made a silly error - but the PSD/Tiff file is no longer a RAW image. After all how long does it take to copy the layer, 1/10 second?

I would go one further and say open the RAW in PS as a smart object, so you have access to the RAW adjustments - you can have several copies of the RAW file as smart objects, so you can expose say for different bits of the image, then use layer masks to reveal / hide bits - however that may be a bit too much whilst learning.
KingBee e2
8 398 2 Scotland
31 Jul 2012 9:49PM
Thanks Carabosse, I thought I'd got it right! Smile
Nick_w e2
7 4.1k 99 England
31 Jul 2012 10:01PM

Quote:You cannot alter a RAW file, i.e. you cannot make changes to it and save them in RAW format. Hope that puts your mind at rest. Smile


From what I've been told not 100% correct, I've heard people have fraudulently managed to alter the RAW file, one of the reasons Nikon give for not releasing all the data to 3rd party converters - but that's a completely different topic - and no I don't know how to do it.
Carabosse e2
11 39.7k 269 England
31 Jul 2012 10:03PM

Quote:I've heard people have fraudulently managed to alter the RAW file


Not exactly relevant to a normal user, is it? Grin


Quote:but that's a completely different topic


Quite.
KingBee e2
8 398 2 Scotland
1 Aug 2012 9:57AM
Listen, while we're on the subject: one thing I was doing which I realised I probably shouldn't (and have since changed my workflow accordingly) is to hold off doing a "Save as" until I've finished working on an image. For example, I have many JPEGs from my 'absolute beginnner' days, or from scans of film negatives or transparencies, which have been edited to produce a better image overall; but it was only when I finished my edit that I did a "Save as", usually as a .psd file.

As I say, I realise that I may have got the process the wrong way round, with the result that I have a whole raft of .psd files created from JPEGs where the .psd file was created at the last minute, rather than at the moment of opening the JPEG to work on it.

That all said, it's my understanding that when editing a JPEG, which I know is a 'lossy' format, you only lose information each time you save the file, not during the editing process. If so, that would rather suggest that so long as you don't save a file until you get to the end of the edit (and for the most part that's how I tend to work) it shouldn't really matter whether you do your "Save as" at the beginning of the edit or at the end. Would that be right?
ge22y 6 115 12 Wales
1 Aug 2012 10:06AM
I always save at the beginning as a PSD file and then after each major alteration, sometimes saving it as a new file if I'm not sure about the progress I've made, once the the shot is complete I then save that as a JPEG for printing. If you don't save as you go what happens if you have a power cut?
KingBee e2
8 398 2 Scotland
1 Aug 2012 11:03AM

Quote:If you don't save as you go what happens if you have a power cut?


A very good point, Gerwyn. Wink

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