Okay, so
twinsfan33 nicely asked me would I do a tutorial on how I achieve my colouring; and rather than doing a tut on how to achieve a specific colouring I am going to make a post with tips on how I generally go about colouring and pictures/screencaps etc. Obviously you will have to experiment with the settings depending on the image you are using (if it is light/dark etc.)
STEP 1.
The first thing I do is choose my image; in this tutorial I am going to be working with an event picture of Danneel Ackles and also a screen cap from White Collar.
If the image is very large I will usually re-size it to about half the original size - I do not crop anything until I have done all my colouring.
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STEP 2.
The next step is adding a brightness adjustment layer. I usually set it to about 50-70 depending on how dark the image is - on screencaps I don't go too high as it can make the cap pixelated.
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I then go on and add a 'Layer Style' of 'Gradient Overlay' - I always choose the gradient that moves from black to a colour; such as white or in this case a pale yellow.
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As you can see this already has made a huge change to the colouring of the image.
STEP 3.
To make the colours stand out more I always add a 'Vibrance Adjustment Layer' - in this case I put it all the way up to 100, but as I said before, it depends on the image you are using so you will tell how far is enough when you are doing it yourself.
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This has enhanced the colours that are already in the image.
STEP 4.
The next step I make is to add a 'Selective Colour' layer. I usually only work with the 'Neutrals' colour and make adjustments to 'Yellow' and 'Magenta' - in this case I have only played around with 'Yellow', increasing it to +15.
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STEP 5.
I then add a 'Curves' layer to add a little bit of brightness to the image. I stay in RGB and generally only move it slightly as it is only to enhance the brightness.
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STEP 6.
Sometimes, but not always (especially if the image is already dark) I add a 'Levels Layer' I only adjust the middle grey button slightly as too much will make the image far too dark.
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STEP 6.1.
Sometimes the image can be a little too dark, like the White Collar cap. So when this happens I usually 'Duplicate' the image and then set it to 'Screen' - once again adjusting the % depending on how it looks - for this I have set the screen percentage to 100% because it looked ok that way.
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STEP 7.
Once I have created the colouring that I want I then 'Sharpen' the image - sometimes the sharpness needs to be faded to stop the image becoming pixelated.
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STEP 8.
This is when I merge all the layers together [ Ctrl + Shift + E ] and then crop it and make icons XD
If you have any questions let me know and I will try and answer let as best as I can ;)