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Photoshop CS4 for Photographers is an essential course for any digital photographer who wants to master the software's vast array of image enhancement techniques. Professional photographer and instructor Chris Orwig uses his own compelling images to demonstrate how the power of Photoshop can make photographers more passionate about their work. He covers many aspects of the application, such as working with RAW images, using curves and levels, making images snap, and enhancing bland photographs by converting them to black and white. Exercise files accompany this course.
All right, well, now that we have experimented a little bit with color correction by the numbers I want to pull out in this slide here. It's titled numbers.psd, I'll press the Spacebar to take this to Full Screen View mode. I wanted to do this to illustrate how these numbers relate to each other. So keep in mind that the Cyan is 1/3-1/5 of the Magenta/Yellow. Now the Magenta and Yellow are pretty close or almost equal, yet Yellow is almost always king, you want a little bit more Yellow then Magenta. All right, well, now that we know that, now that we know how this works a little bit, let's apply our knowledge to yet another image. We will apply to this one. Go and double click that file to open it up in Photoshop, press F to go to Full Screen View mode. Now if you have not opened up your Info palette, you want to go to Window > Info and open that up.
All right, with this movie you will have notice that I already have a sample point set for us. I'll go and click and drag that off, to add that point again it's a Shift/Click. Now why the forehead in this case? Well, the forehead is pretty even skin tone so that is going to give me a good sample. I'll change my values to CMYK color. Now when I look at my values, whoa! Big problems. Yellow is really low, Magenta is high, Cyan, who knows, so let's go to our Curves. We are going to go ahead and attack this Yellow channel first. I'll go to my Blue/Yellow channel. I'll grab the Target Adjustment tool, hover over this point and then I'm interested in clicking and dragging in order to increase the overall Yellow, so that I have more Yellow than Magenta. Now when I do that I then want to say, Okay, how is my Cyan, 3 times 6 is 18, 5 times 6 what is that 30. So I'm in range and I could modify this even further, so I go that Red Cyan channel and go ahead and grab the Target Adjustment tool, I'll click to lower this even further, is that number still in range? Well, sure, 3 times 5 is 15, 5 times 5 is 25. What about taking it down to 4%? Is that still in range? Sure. So I can flex this number, all the way down here, from 4 % and take this up all the way up to 7 %, right? There is quite a difference there, there is 7%, let's go back to that 4% which one looks better to me. One of the things I know about this particular image is that this person has pretty fair skin, so my Cyan percentage is going to be much higher.
Now let's take a look at our overall color correction. Here is our before, now we see there is that Blue shift. And there is our after, that looks so much better. Now the thing that keep in mind is when you look at your before and after, your first glance you are going to think it does not looks good, walk away and look back and in addition focus in on those numbers. Now some of you know, I teach at photography school and there are some teachers there that actually make you color correct your image without looking at them. So what you have to do is press the Spacebar and push the image off the screen and simply make adjustments based on the color and then the quiz and the test is over and then you have moved the image back and see how you did. And one of the things that you will discover as you start to work with these numbers is that, they are a good guide for getting color correct skin.
All right, well, so far we have looked at how we can work with one type of skin and what about other types of skin. Let's take a look at some of those scenarios in the next few movies.
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