1024programmer Photoshop Color correction tools, detailed explanation of the principle of channel mixer – tool tutorial

Color correction tools, detailed explanation of the principle of channel mixer – tool tutorial

@谷明然image retoucher:
Today I want to share with you the principle of this channel mixer. Although this color correction tool is not used the most, it is also a relatively important color correction tool. Today I will share this principle with you, and next time I will share with you the actual practice.

The channel mixer is a relatively special color adjustment tool. Where is the specialness?

In the past, the optional colors, hue, saturation, and color balance that we shared were all about adding and subtracting colors, but the channel mixer changes its color by borrowing the brightness of other channels, so the colors of other channels will not affected. Changes the color of a source channel by borrowing the brightness of other channels. Changes the color of a source channel by borrowing the brightness of other channels. This sentence must be remembered, and it is also the core of understanding the channel mixer.

To understand this, it is actually easier to understand this if you understand the principles of color grading, because the principles are the same, but they are different in the way they are implemented.

How do we understand the sentence of changing its color by borrowing the brightness of other channels? Let’s do an experiment:

First I painted these colors with solid colors:

Color correction tools, detailed explanation of the channel mixer principle_www.16xx8.com

Then create a channel mixer:

Color correction tools, detailed explanation of the channel mixer principle_www.16xx8.com

Then you can start.

First we can select the red channel:

Color correction tools, detailed explanation of channel mixer principle_www.16xx8.com

We have selected the red source channel at this time. If we change the green here, we will lend the green light to the red.

How to understand this sentence?

First, if we choose green, then we know that the green light in this picture is white (255, 255, 255), green (0, 255, 0), and then we lend this green light to red, that is, white, and reduced green light in green.

Color correction tools, detailed explanation of the channel mixer principle_www.16xx8.com

Then we do an experiment and increase the green color to 100% to see what changes:

Color correction tools, detailed explanation of channel mixer principle_www.16xx8.com
www.16xx8.com

Because the previous brightness of green was G: 255, so doubling it means adding 255, and then giving this 255 to red, that is, adding red to white and the previous green: 255 level light, because white has red, green, and blue The brightness levels are all 255, which is the highest, so if you add more to it, there will be no change. You can only change the brightness level by reducing it. In the same way, adding 255 red to green will make it yellow (255, 255, 0). This also proves that the channel mixer changes the color by changing the brightness of the channel, rather than changing the color.

We just said that you can only reduce the brightness in white to change the color, so we reduce the brightness in white by 100%:

Color correction tools, detailed explanation of channel mixer principle_www.16xx8.com

Did the previous white become cyan (0, 255, 255)? Because green mixed with blue is cyan. This can also be seen from the color wheel. At this time we found that the green color has not changed, it is still green, because green (0, 255, 0), reducing the red in green by 255 becomes (-255, 255, 0), because the lowest brightness is 0, so it is still (0, 255, 0).

That’s it for the principle of the channel mixer. Once you have basically understood the above, you will understand the color adjustment principle of the channel mixer. Compared with other color adjustment tools, this is more difficult to understand, but it is not too difficult. The main thing is to first Once you understand the previous principles of color grading, this one is relatively simple.

In order to better understand and use the principle of color adjustment, let’s try to adjust a picture:

Color correction tools, detailed explanation of channel mixer principle_www.16xx8.com

For example, in this picture (which is actually very good, just for experimentation), we want to reduce the green color in the picture and increase the red color. What should we do?

Select the red channel and lend the brightness of the green to the red:

Color correction tools, detailed explanation of channel mixer principle_www.16xx8.com

Has the green color in the picture been reduced? The previous colors have changed accordingly due to the addition of red light;

If we want to lend the red here to green, then we have to select the green channel, and then lend the red to green:

Color correction tools, detailed explanation of channel mixer principle_www.16xx8.com

If we want to lend the red here to blue, then we have to select the blue channel, and then lend the red to blue:

Color correction tools, detailed explanation of channel mixer principle_www.16xx8.com

Has it changed accordingly? That’s it for sharing the principle of channel mixer. If you don’t understand, you can read it a few more times. This is indeed a little more difficult to understand than the previous color correction tools. Read it a few more times, and then try to color mix this way yourself. You’ll understand quickly if you try it.

Summary:

The channel mixer changes the color of this channel by using the brightness of other channels. To understand the channel mixer, you must first understand the principle of color adjustment.

After learning, you can try to use the channel mixer to mix colors, practice it, and then submit to share the method with everyone.

@谷明然image retoucher:
Today I want to share with you the principle of this channel mixer. Although this color correction tool is not used the most, it is also a relatively important color correction tool. Today I will share this principle with you, and next time I will share with you the actual practice.

The channel mixer is a relatively special color adjustment tool. Where is the specialness?

In the past, the optional colors, hue, saturation, and color balance that we shared were all about adding and subtracting colors, but the channel mixer changes its color by borrowing the brightness of other channels, so the colors of other channels will not affected. Changes the color of a source channel by borrowing the brightness of other channels. Changes the color of a source channel by borrowing the brightness of other channels. This sentence must be remembered, and it is also the core of understanding the channel mixer.

To understand this, it is actually easier to understand this if you understand the principles of color grading, because the principles are the same, but they are different in the way they are implemented.

How do we understand the sentence of changing its color by borrowing the brightness of other channels? Let’s do an experiment:

First I painted these colors with solid colors:

Color correction tools, detailed explanation of the channel mixer principle_www.16xx8.com

Then create a channel mixer:

Color correction tools, detailed explanation of the channel mixer principle_www.16xx8.com

Then you can start.

First we can select the red channel:

Color correction tools, detailed explanation of channel mixer principle_www.16xx8.com

We have selected the red source channel at this time. If we change the green here, we will lend the green light to the red.

How to understand this sentence?

First, if we choose green, then we know that the green light in this picture is white (255, 255, 255), green (0, 255, 0), and then we lend this green light to red, that is, white, and reduced green light in green.

Color correction tools, detailed explanation of the channel mixer principle_www.16xx8.com

Then we do an experiment and increase the green color to 100% to see what changes:

Color correction tools, detailed explanation of channel mixer principle_www.16xx8.com
www.16xx8.com

Because the previous brightness of green was G: 255, so doubling it means adding 255, and then giving this 255 to red, that is, adding red to white and the previous green: 255 level light, because white has red, green, and blue The brightness levels are all 255, which is the highest, so if you add more to it, there will be no change. You can only change the brightness level by reducing it. In the same way, adding 255 red to green will make it yellow (255, 255, 0). This also proves that the channel mixer changes the color by changing the brightness of the channel, rather than changing the color.

We just said that you can only reduce the brightness in white to change the color, so we reduce the brightness in white by 100%:

Color correction tools, detailed explanation of channel mixer principle_www.16xx8.com

Did the previous white become cyan (0, 255, 255)? Because green mixed with blue is cyan. This can also be seen from the color wheel. At this time we found that the green color has not changed, it is still green, because green (0, 255, 0), reducing the red in green by 255 becomes (-255, 255, 0), because the brightnessThe low �� is 0, so it is still (0, 255, 0).

That’s it for the principle of the channel mixer. Once you have basically understood the above, you will understand the color adjustment principle of the channel mixer. Compared with other color adjustment tools, this is more difficult to understand, but it is not too difficult. The main thing is to first Once you understand the previous principles of color grading, this one is relatively simple.

In order to better understand and use the principle of color adjustment, let’s try to adjust a picture:

Color correction tools, detailed explanation of channel mixer principle_www.16xx8.com

For example, in this picture (which is actually very good, just for experimentation), we want to reduce the green color in the picture and increase the red color. What should we do?

Select the red channel and lend the brightness of the green to the red:

Color correction tools, detailed explanation of channel mixer principle_www.16xx8.com

Has the green color in the picture been reduced? The previous colors have changed accordingly due to the addition of red light;

If we want to lend the red here to green, then we have to select the green channel, and then lend the red to green:

Color correction tools, detailed explanation of channel mixer principle_www.16xx8.com

If we want to lend the red here to blue, then we have to select the blue channel, and then lend the red to blue:

Color correction tools, detailed explanation of channel mixer principle_www.16xx8.com

Has it changed accordingly? That’s it for sharing the principle of channel mixer. If you don’t understand, you can read it a few more times. This is indeed a little more difficult to understand than the previous color correction tools. Read it a few more times, and then try to color mix this way yourself. You’ll understand quickly if you try it.

Summary:

The channel mixer changes the color of this channel by using the brightness of other channels. To understand the channel mixer, you must first understand the principle of color adjustment.

After learning, you can try to use the channel mixer to mix colors, practice it, and then submit to share the method with everyone.

This article is from the internet and does not represent1024programmerPosition, please indicate the source when reprinting:https://www.1024programmer.com/793041

author: admin

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