How to use PS Channel Mixer_PS Channel Mixer usage tutorial

Are you still troubled by complex image processing tasks? Today, PHP editor Yuzai brings you a tutorial on the use of PS channel mixer. The Channel Mixer is a powerful tool that allows you to finely adjust the color and tone of your image. It allows you to mix different image channels to produce a variety of effects. This is an essential tool for image editors looking to enhance the quality of their images or create unique effects. The following content will introduce the usage of PS Channel Mixer in detail and guide you step by step to master its functions.

1. Open a photo. It is now a green grass. If we want to adjust the feeling of autumn, we need to change the green to yellow. That is, adding red to green.

2. In the Channel Mixer, select the red channel and increase the green value until the grass turns yellow.

3. Since the blue sky also contains a certain amount of green, red is also added to the blue sky, blue red = magenta. (If it is pure blue, it will not be affected)

4. Let’s select blue again and lower the value until the sky returns to normal.

Knowledge points:

We got a conclusion: if you want to get ①, then choose ③ and adjust ② Just numerical values ​​are enough, isn’t it very simple?

Blue=Magenta-Red

①Target color ②Color that needs to be adjusted ③Adjustment channel

According to the 1st conclusion, we want to ①, directly change ② and ③That’s it. Magenta is the original blue, so just replace it with blue.

In this way, the formula becomes, blue = blue-red.

We have derived another conclusion: ②The color of the position is the original color of the picture.

Example:

Let’s look at a slightly more complicated case.

1. Now there is a pink (magenta) flower that I want to adjust to red.

2. Still according to the above conclusion, the target color is [red], and what needs to be adjusted is [magenta]. According to the color mixing principle, we need to reduce [blue] from magenta. Get red. Red = magenta-blue.

3. Now here comes the problem, there is no magenta in the adjustment slider in the channel mixer. We look at the color of the flowers and find that they are composed of [more red and blue] plus [medium green].

This means that it is possible to adjust [Red] or [Blue].

Select the blue channel and lower the blue from 100 to 49 and the red from 0 to -89.

4. But the flower does not turn red. This is because it still contains some green. Let’s lower the green color.

Select the green channel, reduce the red and blue values, and the flower becomes red. The green background is also disturbed, so make the green a little higher.

Knowledge point:

Red = magenta-blue, and magenta = red blue

So, we can get

Red=(red-blue)/(blue-blue)

We have derived another conclusion: a color can be replaced by the two primary colors that make up it.

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