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Thread: How to convert Colour pic to B&W using Photoshop

  1. #1

    Default How to convert Colour pic to B&W using Photoshop

    can any CS'ian share experiance in how to convert a colored photograph into black & white using photoshop please, do i just move all colour slider to 0% in the <channel mixer> or there are additional steps that i need to perform ?
    Last edited by Chew Siow Ming; 26th June 2006 at 09:18 PM.

  2. #2

    Default Re: How to Colour pic to B&W using Photoshop

    theres a few methods. (courtesy of scott kelby).

    a. use lightness channel - under image menu- mode - lab color & convert RGB photo into lab color mode. then go to channels palette and click on lightness palette.. under image menu, under mode, chose graysclale.

    b. use channel mixture. from create new adjustment layer. turn on monochrome checkbox at the bottm dialog.

    c. scotts mthod - press D to set foreground colour to black, then from create new adjustment layer, choose gradient map. click ok to apply it to photo. then go to layers palette, chose channel mixer. use this to adjust.

    d. calculations method - open the color photo. under image menu, choose calculations. then adjust the channels and blend modes using the pop up menus. also, change blending pop-up menu from multiply to overlay... (can adjust further using opacity setting)

  3. #3

    Default Re: How to convert Colour pic to B&W using Photoshop

    the first 2 methods look straight forward, cheers

  4. #4
    Moderator catchlights's Avatar
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    Default Re: How to convert Colour pic to B&W using Photoshop

    Quote Originally Posted by Chew Siow Ming
    can any CS'ian share experiance in how to convert a colored photograph into black & white using photoshop please, do i just move all colour slider to 0% in the <channel mixer> or there are additional steps that i need to perform ?
    For using <channel mixer>, you click ON on monochrome checkbox,
    set all the 3 individual channels add up to be 100%, no all at 0%
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  5. #5
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    Default Re: How to convert Colour pic to B&W using Photoshop

    Best technique is Greg Gorman's B&W technique.

    Allows you the most control for B&W tones.

  6. #6

    Default Re: How to convert Colour pic to B&W using Photoshop

    To add on to channel mixer method, a possible "refinement" is to create 3 separate layers with monochrome checkbox checked, then have Red 100% for one layer, Green 100% for another, Blue 100% for the third. Slide opacity and experiment with the order of layers for taste.

  7. #7

    Default Re: How to convert Colour pic to B&W using Photoshop

    thank you.

  8. #8

    Default Re: How to convert Colour pic to B&W using Photoshop

    this question keeps popping up...maybe should have a stickky thread or FAQ for this...

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