Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
09-19-2011, 10:48 AM   #1
Veteran Member
LFLee's Avatar

Join Date: Aug 2009
Location: Western MA
Photos: Gallery | Albums
Posts: 2,286
Resizing image in photoshop without changing the original image quality

Hi all,

Tried to search this online but cannot find an answer.
I would like to resize my picture in Photoshop CS5 without changing the image quality of the original psd file, how can I do this?

LR3 can export - and select image size, this keep the original image file intact.

CS5 I only found "Image-Images Size" to change the image size and once you save it, the image size reduces and the next time you want a bigger picture you can't.

Newbie in CS5 so hope someone can point out how this can be done in CS5. Currently, I resize the image, then save it as jpg, and quit the image without saving it to psd file, but I found it is kind of annoying.

Thanks for your help!

Lee

09-19-2011, 11:42 AM   #2
Junior Member




Join Date: Dec 2010
Location: Wyoming
Posts: 25
If you are saving for web or screen viewing, you can just go into Save for Web or Devices and change your dimensions there, which comes along with some amount of sharpening if you choose Bicubic sharper in the methods. This will save an image at 72 dpi. Once you have saved you can go back to your psd file and it will not have changed.

Most times I like to see exactly what the sharpening methods I choose really do, rather than leaving it to "Bicubic sharper" in the Save for web dialog, depending on the photo; so I leave image resizing and sharpening until last in the original psd, then save for web, then when coming back to the psd I back up in the history before resizing and sharpening, and either save from there or don't save, if I already have a copy. So you get used to keeping around a copy of your file as an original, and making any changes on it before producing any other files for different purposes.
09-19-2011, 01:52 PM   #3
Veteran Member




Join Date: Nov 2010
Location: Fife, Scotland
Posts: 834
If you make an image smaller (e.g. reduce the number of pixels), save it into a new name. Once you have reduced the pixel count you can't get them back.

Save for web has the possible downside of removing the EXIF.

What you are doing (reduce size, save as JPG) is the right way to go about it.
09-19-2011, 04:21 PM   #4
Veteran Member
LFLee's Avatar

Join Date: Aug 2009
Location: Western MA
Photos: Gallery | Albums
Posts: 2,286
Original Poster
Thanks for the answers (ahill and cats_five).

In LR3 I can set the dpi and the size while export - so I now I can't do that in CS5... thats kind of weird.
So people just save the psd file at different sizes?... hm...


Lee

09-19-2011, 04:57 PM   #5
Junior Member




Join Date: Dec 2010
Location: Wyoming
Posts: 25
I save a master psd file, and then output from that as needed, whether for printing or web, jpeg, tiff or pdf.

I don't know anything about Lightroom (assuming that is what you mean by LR3), but don't CS5 and Lightroom work together? Can you not save your psd in PS, then open it in Lightroom to get your workflow how you like it? I am not a CS5 expert, but do use it a lot, so there possibly could be another way. Maybe something in scripts, or you could possibly write an action to get rid of the part that annoys you.
09-19-2011, 11:12 PM   #6
Veteran Member




Join Date: Nov 2010
Location: Fife, Scotland
Posts: 834
You haven't really explain what it is you are wanting to do. You take a photo, process it and then...?
09-20-2011, 04:30 AM   #7
Pentaxian




Join Date: Oct 2006
Location: Dayton, OH
Photos: Gallery
Posts: 4,396
Does Lightroom have a Save As option? If so, rename the file before you Save As. Most of my images that I downsize for web I add Web in front of the file name. That way they are grouped together in my files and easy to find.

Tim
09-20-2011, 09:58 AM   #8
Veteran Member
LFLee's Avatar

Join Date: Aug 2009
Location: Western MA
Photos: Gallery | Albums
Posts: 2,286
Original Poster
I normally only use LR3 to post-process, but recently I added CS5 into my workflow to do minor adjustments, so I am new to CS5.

My workflow is process in LR3, and then minor process in CS5. So it is LR3 -> CS5.
Once I finish my processing in LR3, I 'export' it as 'original file', the raw file and Open it in CS5 to do minor processing (still with the raw file output from LR3), after processing in CS5, I save the file as .psd file (still original file size). Now after CS5 process, I wanted to save this to different sizes and output them as jpg or tiff (to post to web or for printing).

I found that to do that I have to do 'image-resize' in CS5, and select the size I wanted, then do 'file-save as' and save it as jpg. I can't save this resized psd file as it will reduce the file size permanently in the psd file. So what I do is after I resized and save it to different format, I discard this resized image but keep my original psd file.

What I want to know is, does CS5 have something similar to LR3, where I can 'export' the file to different sizes? Since CS5 is the end of this process I don't want to open the file again in LR3 to be able to export to different file sizes.

Thanks for the responses.

Lee

09-20-2011, 10:26 AM   #9
Veteran Member




Join Date: Nov 2010
Location: Fife, Scotland
Posts: 834
You are doing it exactly the way I do though I only ever do one resize - to make the longest side 1024 pixels for uploading to Flickr, and I append '_1024' to the JPG name.

If you are doing some fairly standard resizing I suspect you can record actions to automate the process at least to a degree. But, AFAIK you have to resize and then Save As the original PSD each time. I don't have CS5, I don't remember anything similar in CS4, and remember that Photoshop and LR are very different products.

There are all sorts of possibilities for batch processing in Photoshop and maybe you need to find someone who knows a lot more about them than I do, which basically is 'they exist'.

BTW can LR3 open the PSD and export it?
09-20-2011, 11:25 AM   #10
Pentaxian
Wheatfield's Avatar

Join Date: Apr 2008
Location: The wheatfields of Canada
Photos: Albums
Posts: 10,945
Export file from Lightroom to Photoshop.
Resize the file to the dimension you want and click save as.
Either give the file an altered name or save it as a different format.
This isn't a difficult concept.
09-20-2011, 11:43 AM   #11
Veteran Member
GDRoth's Avatar

Join Date: Sep 2010
Location: S.E. Michigan, USA
Photos: Gallery | Albums
Posts: 831
I find one of the best benefits of LR3 is the ability to easily resize as you "export" to whatever size or format you need.................I simply put the new exported images onto my desktop in a new folder with a meaningful name..............the orginal images are not changed at all..........
09-20-2011, 11:48 AM   #12
Veteran Member
LFLee's Avatar

Join Date: Aug 2009
Location: Western MA
Photos: Gallery | Albums
Posts: 2,286
Original Poster
Wheatfield, of course is a simple concept, just not a elegant one.
In LR3, you keep your original file and 'export' to whatever file size you want. I am looking to see if I can do the same thing in CS5, not needing to save into so many different filenames for different sizes (space will build up quick as well). I am asking to see if someone can provide a better solution doing things in CS5, not someone who tell me if a concept is difficult or not.

cats_five, OK... I tried and apparently LR3 can open psd file. So I can use LR3 to save to different format -- but now I will have to 'import' the psd files again to LR3 and one more folder to manage in LR3. So the process is LR3 (pp)-CS5(minor pp)-LR3(export).... still not a very elegant workflow. What is the automated process called in CS5?

Lee
09-20-2011, 11:51 AM   #13
Pentaxian
TaoMaas's Avatar

Join Date: May 2007
Location: Oklahoma City
Photos: Gallery | Albums
Posts: 3,272
QuoteOriginally posted by LFLee Quote
So people just save the psd file at different sizes?... hm...
Yes, PhotoShop is different than Lightroom. Lightroom basically saves a set of instructions and doesn't alter the basic picture file, whereas Photoshop saves the entire picture with the alterations permanently applied. So, if you don't want to change your original photo, you have to do a "Save as".

QuoteQuote:
I am looking to see if I can do the same thing in CS5, not needing to save into so many different filenames for different sizes (space will build up quick as well).
I don't think you can do it in PhotoShop. And, you're right, it can start eating up space in a hurry.
09-20-2011, 02:28 PM   #14
Pentaxian
Wheatfield's Avatar

Join Date: Apr 2008
Location: The wheatfields of Canada
Photos: Albums
Posts: 10,945
QuoteOriginally posted by LFLee Quote
Wheatfield, of course is a simple concept, just not a elegant one.
In LR3, you keep your original file and 'export' to whatever file size you want. I am looking to see if I can do the same thing in CS5, not needing to save into so many different filenames for different sizes (space will build up quick as well). I am asking to see if someone can provide a better solution doing things in CS5, not someone who tell me if a concept is difficult or not.

cats_five, OK... I tried and apparently LR3 can open psd file. So I can use LR3 to save to different format -- but now I will have to 'import' the psd files again to LR3 and one more folder to manage in LR3. So the process is LR3 (pp)-CS5(minor pp)-LR3(export).... still not a very elegant workflow. What is the automated process called in CS5?

Lee
In Lightroom, you aren't doing anything to an image file until you export it, which is pretty much the same as the save as function in Photoshop. TANSTAAFL. If you want to change an image file but leave the original alone, you are going to end up with 2 files.
There is no way around this.

Lightroom: Export to new file.
Photoshop: Save As new file.

There are a couple of ways to automate things in Photoshop.
One is the Image Processor, found under File/Scripts, the other is File/Automate/Batch, which would use an action that you have written with some specific bulk processing in mind.
There may be others, droplets comes to mind, but these are the two I use most often.
09-25-2011, 05:18 PM   #15
Veteran Member
mysticcowboy's Avatar

Join Date: Apr 2009
Location: port townsend, wa
Photos: Albums
Posts: 968
Just one point. You cannot change the size of an image without reducing the quality, at least a little bit.

Since I want my psd or tif files to have the best print quality, I save them in 16 bit mode and AdobeRGB or Pro RGB. Saving for the web I use an action that resizes photos, for web posting. First it flattens the image. Then it changes the bit mode to 8 bit, changes the image from Adobe RGB to sRGB and adds some sharpening. I sometimes have to dial back the sharpening, which is easy to do in the Edit Menu. It is important to know that compressing a file in jpeg mode will soften it so a bit (not a lot) of over-sharpening before conversion can help make of for that. Using the Save As does preserve EXIF data which Save for Web doesn't. You don't need to rename the file. The different file extension makes the file name different anyway.

Last edited by mysticcowboy; 09-25-2011 at 05:33 PM.
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
cs5, image, image in photoshop, photography, photoshop, picture, psd, quality, resize, size
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Image resizing help? Alliecat Digital Processing, Software, and Printing 2 08-30-2011 05:24 PM
image resizing DanLoc78 Digital Processing, Software, and Printing 23 01-11-2011 03:20 PM
Misc Image host with resizing system. Anyone know? titan17 Post Your Photos! 2 10-11-2010 01:51 PM
Image resizing for printing... timstone Digital Processing, Software, and Printing 6 04-15-2010 03:54 AM
Landscape Changing a Image Jimbo Post Your Photos! 2 11-22-2009 03:18 PM



All times are GMT -7. The time now is 09:22 PM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top