Guide Converting photographs to Black and White - the better way

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Hi folks,

To continue on with my short post in the Photography thread, here's a very short guide. I can post more basic post-processing techniques if you like this one. :D To the PS freaks: I know this is quite simple, but I was really blown away initally when I discovered this feature hidden in the menus. :)

Converting a photograph to black and white is not just about removing colors. It's about choosing which range of colors represent "black" and which range "white". The correct choice of the color tone can create powerful photographs which convey a sense of depth and feeling to the shot instead of looking like flat greyscale images.

The most popular method of converting to B&W - simple remove the colors! How?

Photoshop's Desaturate feature.
1desaturatedi5.jpg


(This is what almost all cameras do when you choose the BlacknWhite option in the cam's menu. This is why I prefer taking the shot in color and post-processing it later to my liking.)
The better and indeed more satisfying way to do it is given in the short guide below:

1. Open your photo. :D I've opted for a picture of the Notre Dame in Paris, no post-processing done...this is straight out of camera so far.

2. Before we start the process of giving the monochrome look to your photo, you first need to understand which color ranges are going to be Dark and which are Light for you.

For this, go to the Channels Palette
2channelsrv9.jpg


Here I've isolated only the Green channel
3greenonlyoo2.jpg


2. Go to Layers>New Adjustment Layers>Channel Mixer. Click!

4chnmixne5.jpg

5oksk2.jpg


3. Click OK there to open the New Channel Mixer layer window.

Tick the Monochrome tickbox and the image will immediately turn Monochrome (B&W) with default values. Voila!

6defaultshc8.jpg


4. I don't like the look of this yet, as it's not punchy enough. So you can play with the values of Red, Blue, Green channels to achieve the final look you want.

My final settings:
7finalspv7.jpg


Just a few guidelines:
1. Ensure that the Total value adds up to 100% or thereabouts or you'll clip out the highlights. In my example, I've added a bit more than 100% to bring more light into the picture.

2. As I chose Red as my "bright" channel, the yellowish-tinged Notre Dame turns out white and since the Blue channel is subdued and hence dark, the sky turns a ghastly black. I feel the shot has a good eerie feeling thanks to this. :D
Finally here are the examples:

1. The original shot
origdl7.jpg

2. The Desaturated B&W (the usual black n white)
destiz4.jpg

3. The Channel Mixed B&W
chanmixov4.jpg


...and a few more samples. All from Paris! (hint, hint...my next upload of photos on the Photography thread :ohyeah: )

Original
orig3vu2.jpg


Desaturated
ddesaten4.jpg


Channel Mixed!
adjcz6.jpg

This is one from the Louvre. Just an example to show that you can do both the methods and achieve different photographs:

The original
orig2gb6.jpg


Desaturated but Levels adjusted
bwlevelsyq1.jpg


Channel Mixed
mceh6.jpg


Enjoy losing your colors! :hap2:
Done!
Payne
 
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Hmm....

chanmixov4.jpg


I think this pic still needs work...the background (sky) is good tho.

The lower half seems a bit too brightly lit for me...or another way of saying is that the glare is obscuring the fine architectural detail.

At this point i think the colour version is better..but let's see what magic you can do :cool2:
 
Some nice shots you got there. Channel mixing is nice technique. Have you tried using Layer > Adjustment > Black & White though? It also works similarly, and produces nice B/W images. Play around with it for some time and you'll know what I mean. :)
 
@iGO:
Me = owned! :D

Oops! I think that was added in CS3. :) Am still getting used to CS3. :D Used 5.0, 6.0, 7.0 for my first 4 years, and CS2 for a year!

@blr_p:
Yaar, it's a sample image. Not looking for perfection there. ;)

Here's one to chew on:

Street show
2414815951_076c4cda00.jpg

This shot was taken in front of the Notre Dame, you can see the women behind him taking shots of it. :D

Converted to Black and White and added background lens blur in PS 7.0. :)

This technique has given me great results so far and is quite simple also. But as iGo has mentioned the Black and White layer is now the better method for owners of CS3.

Payne
 
Ah nice review with the appropriate screenshots. I will try this later on. Repped as promised for a good review !
 
Good guide. Will be useful for PS newbies.

(I've been to all 3 of the places in the photos. Brought back nice memories. :) Paris ftw!)
 
2414815951_076c4cda00.jpg


This one is better, only tip i think is that the skittles be in focus..otherwise the blur is working well to enhance the subject :)
 
I don't use this method, but I think you do it nicely.

Your shots are great as well. The one of the street performer is absolutely stunning!
 
Awesome work........You can also get similar effects using adjustment layers... this is nice because they are non destructive.
 
nice technique - but in the second photo colors of ppl's clothes have changed a lot. If u compare the photoshop desaturated one and the pic with channel mixed desaturation - grey has become white: see the lady right in front (on the steps) + some guy in a grey suit further to her right a little above.

also i think keeping the check box next to "Use previous layer to create clipping mask" should be kept checked. This makes a new "linked" Channel Mixer layer above ur photo and if u dont like the effect u can just doubleclick the layer and change the settings again without disturbing the original photo.

You still deserve the reps for the technique. :)
 
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