How to fast mix the color channels

When we get a digital photo, to make its full color be rendered on the screen, we use the RGB model, a system of representing colors. The individual sets to store the color data of this model are known as channels. R channel stores the amount of red. G channel stores the amount of green. B channel stores the amount of red. Perhaps you encounter such a situation. One channel has high color values and the other channels have low color values. Then, to iron out this issue, you can take values from one channel and add them to another one. This is so-called color channel mixing. Although a lot of photo effect editors come packed with color channel mixers, many of them have steep learning curves and are not suitable for photo editing novices. If you are looking for an easy-to-use software tool to mix the color channels, please continue reading the post. In this post, I will introduce a novice-friendly photo effect editor to you and show you how to get the job done with it.

Photo HDR by Vertexshare

Mix the color channels using Photo HDR

As the name suggests, Photo HDR works as a HDR photo creator. It lets you combine photos with different exposures to make a stunning HDR photo. Besides, it functions as a photo effects app, providing you with a number of filters to enhance the quality of the photo.

Open the program and you will be greeted by a sleek and clean window. Once you load differently exposed photos into the program, the HDR technique will be applied to them. Click on "Next" and you will be taken to a new window. The window is composed of three panels. A series of predefined effects are located in the left-side panel. You can see small preview thumbnails of these visual effects. The middle panel takes up most of the window. This is a preview area where you can check the changes applied to the photo in real-time. A collection of adjustment parameters are located in the right-side panel. You can change the exposure level by altering the brightness, contrast, as well as saturation. Moreover, you can compress the dynamic range of a photo, tone-map a photo, and boost colors using Lab adjustment. What's more, you can modify the local contrast, sharpen the blurry photo, and use a channel mixer to adjust colors. In addition, you are allowed to reduce the noise level in the photo and add a graduated filter effect to your photo. Other adjustable parameters include vibrance, vignette filter, and soft light.

On the whole, Photo HDR enables you to fast create a high dynamic range photo and adjust the visual aspect of the digital photo. It is a great option for less experienced users who are looking for a simple way to edit the effect of the photo. If you want to post-process the photo effect as quickly as possible, give Photo HDR a shot.

Let's dive into the part of how to use Photo HDR to mix the color channels.

How to mix the color channels with Photo HDR

Step 1.

  • Drop your photo into the box "Drag and Drop Your Photo here". You can also import the photo by clicking on the "Add" button. To remove the imported photo, click on the "Remove" button next to the "Add button".

Step 2.

  • Click on "Next". Go to the right-side panel and scroll down to the "Channel Mixer" section". Click on the "Channel Mixer" button to activate the function of adjusting the parameters. The parameters in the "Channel Mixer" section are red 1, red 2, red 3, green 1, green 2, green 3, blue 1, blue 2, and blue 3.

Channel Mixer

Red 1, 2, 3 are the values of the output red channel. Green 1, 2, 3 are the values of the output green channel. Blue 1, 2, 3 are the values of the output blue channel. When one value is increased, the total values of the corresponding output color channel will be increased. When one value is decreased, the total values of the corresponding output color channel will be reduced and meanwhile the tones of the opposite color will be added to the photo.

Let's say, if you raise the value of red 2 from 0 to 72, you will add the values to the red channel and the photo gets the magenta tint.

The photo looks a little more magenta

Then, if you raise the value of green 1 from 0 to 43, you will increase the total amount of green. You will see the photo look yellowish.

The photo looks a little more yellowish

As you know, the opposite color of red is blue. So, if you lower the value of red 2 to -43, you will add blue tones to the photo.

The photo looks a little more bluish

  • Drag the sliders to adjust the effect until it suits your needs.

The photo adjusted by channel mixer

Step 3.

  • Press the "Save as" button to export the photo to a desired location.

An alternative to Photo HDR

Mix the color channels using Elektrobild

Elektrobild is an online photo effect editor with one-touch adjustments that allows you to improve the photo in a quick way. Like Photo HDR, it lets you make color adjustments by using its in-built color channel mixer. Follow the steps below to use Elektrobild to mix the color channels.

  • Head over to the site and press "SELECT A PHOTO" to upload your photo. You can also upload your photo by entering the URL of the image.
  • When your photo is uploaded to the server, you will be taken to a new webpage.
  • Go to the right pane and click on the three-line button to show all utilities. Select "COLOR CHANNELS".
  • Press the "COLOR CHANNELS" button in the "FILTER SELECTION" section to activate the function of mixing color channels. You will see three sliders for adjusting the red channel, green channel, and blue channel.
  • Pulling each slider to the right or left will increase or decrease the value of the color channel. If you want to redo the adjustments, click on "reset slider".
  • There is an "ORIGINAL - FILTER" slider below the three sliders. It is used to control the strength of the color channel mixer. Moving the slider to the left will diminish the effect of color channel mixing.
  • Click on the "Tick" button to save the changes. Then, press the download button to download the changed photo.

Move the three sliders


The two apps mentioned above are handy tools to tweak colors by mixing the red, green and green channels. What you should keep in mind is that when using the channel mixer, you are adding or subtracting the brightness values of the colors rather than actual colors. If you have any questions, please let me know by leaving your comment below.

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