Announcement

Collapse
No announcement yet.

frequency separation blur number?

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

  • frequency separation blur number?

    Hi,
    I've been thinking about FS blur number for a long time, for now my understanding is that, before blur, I should zoom in enough to make sure small texture,i.e. pores, be blurred and larger texture not blurred. That means,FS not only separates texture from color and tone, but also separates small texture from bigger texture.
    Don't know if I'm right.

  • #2
    Re: frequency separation blur number?

    How about doing the separation based on Dust and Scratches?

    Comment


    • #3
      Re: frequency separation blur number?

      Originally posted by anderson234 View Post
      Hi,
      I've been thinking about FS blur number for a long time, for now my understanding is that, before blur, I should zoom in enough to make sure small texture,i.e. pores, be blurred and larger texture not blurred. That means,FS not only separates texture from color and tone, but also separates small texture from bigger texture.
      Don't know if I'm right.
      Your thoughts seem pretty much correct to me (I do not do an awful lot of FS!).

      Blurring the image just to the point where texture is lost but leaving colour transitions clear should be it.

      The correct blur value will depend on image resolution and the size of the principle subject within the frame.

      So zooming to view will be a good idea as your screen resolution may not be enough to match the output device, assuming you are going to print

      Comment


      • #4
        Re: frequency separation blur number?

        For close up shots of faces, one rule of thumb is to blur enough that you can't distinguish individual eyelashes. That often works pretty well.

        Comment


        • #5
          Re: frequency separation blur number?

          Thanks guys, helps a lot!

          Comment


          • #6
            Re: frequency separation blur number?

            You separate what you need from what you don't need. You don't need to separate two frequencies, it can be done with infinity number of frequencies. Not just big and small texture, but thousand layers with one pixel each

            Comment

            Related Topics

            Collapse

            • P_fuzz
              this frequency separation you all speak of...
              by P_fuzz
              show me the way to it

              j/k, I was wondering if there is an ultimate tutorial on this tech, so far I only found some really poor elaborated ones on youtube.

              thanks
              06-16-2011, 06:45 AM
            • tarilynquinn
              UGH! Freq. separation coming out blurry on texture
              by tarilynquinn
              am i stupid? my frequency texture workflow is resulting in blurry skin texture.

              what are the proper steps to do frequency separation? i think i might be skipping something.

              1. 2 layers - high low
              2. blur low at around 10ish? (same as you would use in high pass filter)...
              12-13-2010, 10:04 AM
            • nemrob
              Frequency separation math
              by nemrob
              Hello to everyone, I'm new to this forum. I use freq. separation for a while now, and I've done quite a lot of research on the subject, but I could not find one article that thoroughly explains (for non-math buffs) how FS works. I would like to understand why it happens as it does, but I'm quite stupid...
              09-14-2014, 03:51 PM
            • keliot
              Frequency Separation without the Contrast Group
              by keliot
              Hello.

              Is there a way to do Frequency Separation without utilizing the Contrast Blend Modes Group?

              Due to the nature of editing I am doing using standard Frequency Separation techniques leads to unpleasant ghosting/ringing/halo type artifacts that build up with every step....
              10-04-2016, 10:15 AM
            • fraiseap
              Extended frequency separation
              by fraiseap
              I have been playing around with frequency separation using a couple of methods;

              1. Using surface blur to create a low frequency layer and using high pass to create a high frequncy layer and blending the two with linear light

              2. Using the Model Mayhem technique of creating...
              12-30-2010, 08:42 AM
            Working...
            X