Announcement

Collapse
No announcement yet.

Colorspace comparison

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Colorspace comparison

    By Doug Nelson (doug) on Sunday, May 20, 2001 - 01:12 am:

    I did this for another group I subscribe to (gad, I feel so unfaithful), but I thought maybe there was a colorspace guru here that might have some meaningful input:

    http://www.retouchpro.com/pages/cspace.html

    The topic was "does converting from one colorspace to another destroy data?" but feel free to make any colorspace contributions you feel like.

    By Mick Kerr on Friday, June 01, 2001 - 11:08 am:


    I have had some experience with color spaces but I work for a local newspaper & most of our problems stem from CMYK images & not RGB images. But I can say through hard experience that in my case I have received images at work that have an ICC profile embedded to another CMYK setup & overwriting our own Separation setup & when the job is printed the colours are nothing like what they were on the screen. It has become so bad that our organisation has put a freeze on upgrading to anything above Photoshop 4 until the problem is resolved although apparently Photoshop 6 has resolved a lot of these problems. My main fix is to convert these images back to RGB & then convert them to CMYK in our Separation colorspace. It means a little bit of extra work in correcting the image as all this converting to & fro to different modes can sometimes degrade an image quite a bit. I must stress these are usually contributed images like emails etc.
    Mick Kerr
    Learn by teaching
    Take responsibility for learning

Related Topics

Collapse

  • mike60640
    Differences/tips in working in CMYK
    by mike60640
    I'd like to talk about all the differences of working on CMYK images (versus RGB) in photoshop.

    Most of my retouching work has been in RGB. On rare occasions, clients have thrown me a CMYK image to make corrections on, and i have been ok. But, I have not explored all the things i need...
    08-25-2009, 01:56 PM
  • D Thompson
    RGB to Lab/CMYK and back to RGB
    by D Thompson
    I asked a question in this thread (http://www.retouchpro.com/forums/pho...s-lab-raw.html) about going from RGB>Lab/CMYK>RGB and got some good answers from Robert & John. I usually stay in RGB and will change the color sampler readout to CMYK when doing some...
    07-26-2011, 10:04 PM
  • mac
    good old rgb cmyk prob
    by mac
    Hey all,
    I'm a new member with a few years of commercial retouching experience, will try to help out with others problems. Have got a fairly urgent one myself...

    I've got a client who gets their images supplied in RGB (since the files are being published in a variety of publications)...
    02-17-2005, 03:12 PM
  • xxxmen
    Converting CMYK to RGB and back to CMYK.
    by xxxmen
    Hello all,

    I'm aware that RGB is a larger gamut of colours then CMYK. If I had an original image that is given to me in "CMYK" when using Photoshop for colour correcting; is there any loss in quality if I convert the CMYK image to RGB.
    The reason for converting to RGB...
    11-27-2008, 09:12 AM
  • Jeff F
    Home Use for CMYK Separations
    by Jeff F
    I'm currently working my way through the CMYK separations section of Richard's book for the second time. Are there any significant advantages to printing on an inkjet printer from a CMYK split image? More efficient use of ink possibly, or more accurate colors during print? Just wondering. I'm enjoying...
    06-02-2003, 10:46 AM
Working...
X