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Technique: Conversion to B&W

posted by A Aref Nammari (goplayer)
Posted on Friday July 18, 2008 at 03:00. 129 visits. ( permalink )
One difficulty that many experience when they enter the world of digital photography is the conversion of color images to B&W. The "one click" conversion, i.e desaturation does not do a good job, desturation simply converts all the three channels (red, green and blue) to grey scale by giving them the same weight. The result very often is a "muddied" image. Other methods are using the channel mixer and gradient map. Those methods, the channel mixer method in particular could sometimes be quite hard to use. However, with experience great tones and beautiful B&W pictures can be produced.
I just came across another technique which sounds easier to use and produces excellent images. That is the claim at least and I can't vouch for or against because I have not tried it--I will though and will report on that. The following link from Adobe explains this method which uses the Hue/saturation filters www.adobe.com/designcenter/photoshop/articles/phscs2mrblkwht.html
It would be nice if someone who might have tried this method can post or reply to this thread to share the experience.

3 Replies

A Miffy says:
Will have to have a look at that! Thanks Aref.
I have used mainly channel mixer, and have downloaded a suggestion for replicating different films. However, even when working with raw files, I find I suffer very badly with banding and pixelation when working on sky's. I usually apply a small amount of noise reduction for this but still frustrates me.
I love using Duo tone for the colouring of my work, find it replicates the toning process of traditional prints well as it works on certain parts of the image and that I can control these parts. The only down side is that I find different results on different monitors, despite using a pantone reference chart for my colour choice.

If anyone can get it, Black and White Photography magazine had a great article on B+W conversion and suggested using the unsharp mask for contrast control. Results worked very well and could be employed locally or all over the image.
Posted 15 months ago. ( permalink )
Midwesternstock © pro says:
thank you for post this link!
Posted 13 months ago. ( permalink )
A Aref Nammari (goplayer) replies:
You're welcome. I have tried it and the result was very good. I still like to use channel mixer though--I suppose just because I got used to it and have developed somewhat of a feel for the method.
Posted 13 months ago. ( permalink )

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