PS Channel Mixer Detailed

The use of channel Mixer principle of the tutorial on the internet everywhere, but really can make people understand almost no, write people are understand, but not correct expression, let a person see the fog, finally can give up. I have carefully pondered these days, and finally realize what it is all about, make a memo, right when their own study notes. So that the time is not enough, can be warm and know new. It would be a great honor to have the help of a friend who likes PS.

Word stadia: To understand the principle of the channel mixer, first of all to know two concepts:

1, the channel is the constituency. This is the common sense that people who play PS know.

2, popular speaking, the channel is also a color.

Remember these two points, which are useful for the following understanding channel mixer.

First, to facilitate understanding, we do an example:

1, in PS, a new file, the size of arbitrary.

2, background color filled with black.

3, the above three graphics, is a square (filled with red r:255), round (filled with green g:255), triangle (filled with blue b:255).

4, click the Channel palette, we can see: There is only a white square in the red channel; there is a white circle in the green channel; a white triangle in the blue channel. This is because in the channel panel, white represents the color of the information exists, and the highest level, take the red channel, because only the square has red information, so it shows the white square, and the circle and triangle without red elements, so it is black. But note that the channel is the selection, the red channel, although there is no circular and triangular information, but its regional position still exists in the in Hom Channel, that is, in the red channel or there is a square, circular triangles, three regional positions.

Similarly, the green channel, blue channel is the same.

Second, the channel mixer in the name of the interpretation:

Open the Channel mixer, click on the "Output channel" drop-down menu, select "Red".

(1), what is called the output channel, I understand the meaning of two layers:

A, the output channel is the image we want to modify the original channel. You choose red, is to modify the image of the red channel.

B, said earlier, the channel is the color, then select Red, is that we want to output red color. Where are we going to lose? Go to the source channel.

(2) What is called "source channel", I also understand that 30% meaning:

A, the source channel is also the same as the output channel, is also the original image channel, you select the output channel for red, then the source channel is also red. In fact, the red color input (this input meaning contains added and subtracted) to the red channel of the image.

B, the following three red, green, blue sliders, is in the red channel three areas (although not see the green and blue areas, but they are present).

C, move red, green, Blue slider is to add or deduct red information to three areas in the red channel.

Third, we can confirm:

1, the right to move the Red slider, the image does not change, that is because the red area (square) in the red has been saturated (R255), no meaning. While moving the left to reduce the red information, you can see that the red color blocks in the image gradually become black.

2, move the green slider to the right, the image began to change, that is because the red area of the garden added red components, while in the channel Palette, the red channel gradually appeared in the white circle.

This confirms that the green area is also located in the in Hom Channel, while the left is to reduce the red information, the image does not change. That's because there are no red elements in the rounded area.

3. Similarly, moving the Blue slider is the same.

Four, the same, choose the output channel for green, Blue is the same.

Five, what needs to be explained is: we present the example is three solid color color block, so see very clearly, but in practice, the image is very complex. For example: The area of a dress has a variety of colors, but their color principle is the same.

Six, the principle of color matching

1, select the output channel for red.

2. Move the source Channel Green slider +100 to the right, the green color block in the image turns yellow, because the red information is added to the green area in the red channel, and the green channel is still there, which adds to the red and turns yellow.

3. Similarly, move the Blue slider +100, the blue color block in the image becomes PINKCO.

4, the principle of deducting information is the same.

5. Similarly, selecting other output channels is also the same.

Need to explain, the combination of various primary colors will produce what effect, you must be familiar with, then your palette is handy.

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