No announcement yet.

why is the refresh rate slower in lab mode?

  • Filter
  • Time
  • Show
Clear All
new posts

  • why is the refresh rate slower in lab mode?


    why is the refresh rate slower in lab mode?

    for example i load an image , rgb , ad an adjustament layer -> curve and i start to play with curve -> the refresh is instantaneous (i mean the image become more dark or lighter instantaneous )

    but if i load an image -> conver in lab mode , the refresh rate is slower

    i tried cc and cs6 too, same behavior under w8.1 64 and w7 64bit

    5d mark 2 image , jpg , zoom actual size

  • #2
    Re: why is the refresh rate slower in lab mode?

    You need more ram.


    • #3
      Re: why is the refresh rate slower in lab mode?

      What skoobey said. I'm using a MAC with 6GB of RAM and both color spaces refresh at the same speed. CC and CS6.


      Related Topics


      • kkamin
        L*a*b* question: why can't it be simulated in RGB?
        by kkamin
        The big benefit I see of Lab is that the luminance is not tied to the color. So you can adjust saturation without clipping the colors as fast. Or darken an image without desaturating the colors as fast.

        But why can't adjustments be made in RGB with blending modes such as "color"...
        09-06-2010, 05:58 PM
      • Chacaboy
        Questions about LAB mode
        by Chacaboy

        I am a new member as of yesterday. I teach Photoshop and Lightroom, college level, and I would like some practical suggestions about how to demo useful or creative methods using LAB mode. I understand how it is structured, and that the lightness or luminosity is isolated from the...
        08-24-2016, 04:05 PM
      • mantra
        how can i import a duplicate image to my original?
        by mantra

        i'm working on an image ,rgb

        i want to make some edit in labmode , so image->duplicate ,image->mode->lab

        now i have on my first tab my original image rgb and on the right my duplicate image in lab mode

        i make some edit in lab...
        06-06-2015, 11:42 AM
      • Toriat100
        LAB mode and retouching advantages..?
        by Toriat100
        Could any one explain LAB mode to me and its advantages for retouching/restoration?

        Many thanks
        01-24-2008, 05:53 AM
      • Rachel
        Unsharpen Mask / Luminosity
        by Rachel
        If you want to apply sharpening to an image and do not want to switch to lab mode, here is another method to do so...

        Unsharpen Mask settings:

        Divide the output resolution by 200 and this determines your radius.
        Threshold: Setting of 4-8 reduces graininess in flesh...
        07-26-2002, 11:54 AM