The detailed channel is a kind of constituency (please understand for a moment, I know this is not comprehensive) first understand the classification of the Channel 1. Color Channel
2.ALPHA channel (including Quick mask)
3. Spot color Channel
First, take the color channel as an example to explain to you, when a picture is created or opened, it automatically creates a color channel. For example, create or open a picture with a color pattern of R (Red Red) G (green) B (blue blue) you will find four channels on the channel panel, * * * 001** *
A total channel (that is, the red, green, and blue tri-color synthetic channel, what everyone sees on the screen is this synthetic channel, ctrl+~ can open her, by default she is selected. Down is the R (red) channel g (Green Green) Channel B (blue blue) channel, * * * 002***
Now I'm going to open a picture of a color mode of C (cyan Cyan) M (magenta magenta) Y (yellow yellow) K (black) I'm sure we all know that there will be a few channels coming up. Understand the concept, to tell you what the color channel is to do with the time, She tried to give us a distribution of a certain color (say the professional point is the color level or hue is the color from the darkest to the brightest progressive echelon number, I know this is more difficult to understand, so I try to use color distribution in this way to introduce her to you. She uses a Black-and-white grayscale to indicate the color distribution, The darker the place is, the less color it will be, the darker (that is, the lower the hue value, the minimum hue is 0, these people do not need to specially remember, as the more contact you will naturally understand what I write meaning), and the more white where the more certain color distribution of the more color will be brighter (that is, the greater the hue value, The maximum hue is 255). Maybe you'll want to figure out why you're using a black-and-white grayscale, why not directly in a certain color to express is not more intuitive, good you have entered the formal, we continue to look down. Because the eyes tend to deceive everyone, a black-and-white picture is very direct to see that deep shallow, And a picture like the one below you can divide the red or red or a little deeper, and the red is farther away from the red or lighter. * * * Map 003***
I think only those who have studied the color study to know it (anyway, I can not see it, but if you want to strongly require the primary color to display the channel, you may have the following action edit (edit) PREFERENCES (display&cursors) (display or cursor) Check color Channelsincolor (channel with the primary color display), this can be used to display channels in color, but I do not recommend that you use the same color channels and the order and name can not be modified, and now everyone to the color channel should have a deeper understanding.
Note: I used a link to the menu and her submenu and the related options. Well, it's two o'clock the night, today is my birthday so want to come to the classics has been two years, has not written anything really ashamed, in this special day I wrote my first tutorial, (not finished, but I have to sleep, The students are going to listen to me tomorrow morning. Anyway, I hope to give you a little inspiration, the wrong place also please point out. I'll finish writing him as soon as possible.
Write Time: May 13, 2004 Lunch Hour
Color channel first of all, if there is a problem, please put it in the comments, I'll take the time to answer them. Last time, we have a knowledge of the color channel, I hope she is in your mind is the color distribution, which is right. We should know something much more powerful. Alpha channel or mask. First look at the quick mask, She is a special form of the mask. Her role was to quickly create a complex constituency, but there's a drawback. This constituency can not be saved with the image, you work hard (notice that I'm painting, you'll understand what I mean below) there is no way out of the constituency. And she can only build one, it's inconvenient, isn't it? So it's best not to use her. But you should also know that when someone asks you for a quick mask, you'll be glad you know her, and that she has a lot of flaws.
So then learn to build a quick mask that's not very useful, I'm sure you know what I mean. Before we build a quick mask, we have to create a selection, and then use the shortcut key (Q) Quickmask Quick Mask to enter the edit state of the quick mask, where you will see a light red surrounded area, * * * Figure 004***
Figure 005***
Yes, I do not like this color, so I will change her to my favorite color, double-click the quick mask this channel, there will be a quick Mask Options dialog box, * * * 006***
Change to your favorite color on it, but it's best to make a big difference with the original color, otherwise you will not be able to see the mask, * * * Figure 007***
On the color of the instructions to select the area, the figure will look like this to cover the main body, * * * 008***
Figure 009***
So you will typically select the mask area above. Channel Panel you'll see an extra channel called Quickmask (Quick Mask). If you don't have a constituency, I'm sure you'll see this, and the channel panel will show, * * * 010***
Figure 011***
So you should create a constituency before creating a quick mask.
Okay, let's start editing this quick mask, in fact, it's easy to draw directly from a black or white brush. The effect of a black brush is to increase the mask, reduce the selection, and the white brush to increase the selection and reduce the mask; it's important to make sure you remember this rule. * * * 012***
Now is the most critical time, we can get a constituency right away, it's really exciting, don't we just want a constituency, do it with me. * * * 013***
Figure 014***
Well, I have to prepare my lessons.
And then the writing time: May 13, 2004 Night ~ May 14 early morning
Draw a constituency, good! This is the quick mask we introduced in the last section, and I'm glad you can understand her. This section describes the most important alpha channels (that is, masks). I want you to go through the last section of the study, should be on the alpha channel (that is, the mask, I will call her mask) Have a perceptual understanding of it. Quick mask since it is a special form of a mask, her advantages and features are certainly masking, yes, just draw a constituency. But she still has the advantage of a quick mask, and she can keep it with the image; Well, you should now know why you should suggest you use a mask rather than a quick mask; because she can save it with the image. , the next time you open your picture, the hard drawn constituency can be edited again, it's very convenient. And you can create multiple (quick masks can only create one) so that you can use the addition, subtraction, and handing of constituencies to make more complex constituencies (which will be introduced later) without the need to create a constituency when the mask is established. This is more convenient than a quick mask. Simply open the Channel Control Panel and select the third button to create the mask. * * * 015***
After the establishment, we should do is to edit her, OK, this is very simple. Because she's exactly like the editor's quick mask, I'm sure you've memorized the two rules I'm talking about. * * * Map 016***
Okay, now it's the best part of the alpha channel.
We create two alpha channels, one is square, and the other is oval. Like this. * * * 017***
Then we select Select (select) Save SELECTION (Save the selection, she means to convert the channel to a selection) to determine
Sorry, my ideas began to be a bit confusing, I would like to be more popular, and an understandable way to explain the essence of the alpha channel. It's not going to work, it's about the mood. It seems that I still have a little time to organize ideas and adjust the mood of my messy. I'm sorry, everyone. Thank you for understanding!!! I will recover quickly and finish what I have not done.
