Announcement

Collapse
No announcement yet.

Adding contrast

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

  • Adding contrast

    This is an old Kodak PCD image of a stained glass window converted to a TIF and a small portion made into a JPG for the purpose of this illustration. I would like to make 2 corrections:

    1) I would like to accentuate the brush marks in the face. From my humble notions of PS I know that pulling the contrast slider across isn't really the answer but something like finding the fainter, darker pixels and accentuating them with some kind of mask is more the way to go.

    2) There is an outdoor shadow that runs up the left hand side of the image which I would like to eliminate.

    Any help or clues would be gratefully welcomed.
    Attached Files

  • #2
    Re: Adding contrast

    Difficult to discern what constitutes brush marks vs artefacts in this particular image example.

    One way you could experiment to accentuate brush marks is with sharpening try both a low radius and adjust the amount to taste (this is my example) or experiment with a high radius low amount (Hiraloam). You will probably want to mask the face only and further refine around the black edges where there are halos (can be seen on the original as well)

    Simple method to get rid of the edge shadow is to divide the areas red an yellow into two seperate curve layers masking each and sampling the red area and adjust the RGB to match then similar with the yellow area. Think the right side of the yellow area may need a little more attention! If your mask is not dead precise just touch up an lines using clone or patch tool.

    Click on attachment and wait a few seconds for changes
    Attached Files

    Comment


    • #3
      Re: Adding contrast

      Originally posted by Tony W View Post
      Difficult to discern what constitutes brush marks vs artefacts in this particular image example.

      Simple method to get rid of the edge shadow is to divide the areas red an yellow into two seperate curve layers masking each and sampling the red area and adjust the RGB to match then similar with the yellow area. Think the right side of the yellow area may need a little more attention! If your mask is not dead precise just touch up an lines using clone or patch tool.

      Click on attachment and wait a few seconds for changes
      Many thanks. The accentuation part I understand ok and have begun experimenting but am a bit lost on "dividing the areas red an yellow into two seperate curve layers masking each and sampling the red area and adjust the RGB to match then similar with the yellow area". Please could you elaborate...

      Comment


      • #4
        Re: Adding contrast

        If you make a selection first of the dark red area with the shadow and add a curves layer the selection area will be added as a mask to the curves layer and only this area (white) will be affected by your moves.

        Do the same and select the dark yellow areas and add a curves layer

        Now place a color sampler in the dark red area and one in the area you want to match. If you look in the info panel you will see RGB values shown next as #1 and #2.

        Place colour samplers in the dark yellow and the area to match you will see further RGB values next to #3 and #4 towards the bottom of the info palette (assume you are using PS!)

        Now you need to move the individual RGB values by manipulating the Curve layers to match the numbers shown for the 'good' colour in the info panel e.g. your values for the colour you want may read R97 G42, B31.

        These are the numbers that you will need to be looking at while adjusting the RGB curves just try clicking the curve and moving either up or down while watching the numbers. It is possible that you may also need to nudge the RGB value in the curves dialogue to slightly lighten or darken.

        Comment


        • #5
          Re: Adding contrast

          I used Topaz Detail. Probably a bit overcooked, ie, strong halos that you may or may not wish to deal with, but it draws out the grunge.
          Attached Files

          Comment


          • #6
            Re: Adding contrast

            Originally posted by Tony W View Post
            If you make a selection first of the dark red area with the shadow and add a curves layer the selection area will be added as a mask to the curves layer and only this area (white) will be affected by your moves.
            A great tutorial - many thanks indeed.

            Comment


            • #7
              Re: Adding contrast

              Originally posted by Flashtones View Post
              I used Topaz Detail. Probably a bit overcooked, ie, strong halos that you may or may not wish to deal with, but it draws out the grunge.
              Thanks for the input, I will look in to Topaz...

              Comment

              Related Topics

              Collapse

              • nebgranny
                Lines out of print area
                by nebgranny
                Can someone please help with picture. I would like help with the darker area towards the bottom of the photo. If you can help would you also post steps of what you did so I can try it and learn from it please. Thanks Neb

                This is the only file size I have hope you can work with it....
                02-05-2006, 07:29 PM
              • datune
                Is it possible to fix this...
                by datune
                Hello!

                First of all i would like to say hello to the board, im completely new and it is my first time post as well.

                I have been looking for a place like this for quite a long time and it took me a lot of surfing through many sites that offered tutorials, of course all...
                06-02-2002, 06:48 PM
              • AtlanaAnna
                old color
                by AtlanaAnna
                This is an old photo and what I've done to touch it up. It's not badly damaged. The color is just dull and faded looking. I don't know that anything I did necessarily made it look that much brighter in color. I welcome your critiques.

                Thank you,

                Sylvia Morris
                sy...
                12-15-2005, 10:18 PM
              • doosume
                curves adjustment question
                by doosume
                Is it possible to get the exact rgb color value in a curves adjustment? How do you do it? thanks!!
                05-17-2004, 02:17 PM
              • supjak
                skin again
                by supjak
                What is your way to achieve smooth skin if large areas of it have different tones? Attached example has many different stains which are lighter or darker. Please help. I am working over few important pictures and most of them require solution to this problem.
                Thank you...
                06-19-2011, 08:04 AM
              Working...
              X