Photoshop Tutorial: Apply Image Commands to Fix Blue Cast – Correct Color Cast

Author: Huo Mian Source: Tutorial Network

Original image

Effect

Before studying this tutorial, you should have a corresponding understanding of the concept and function of channels. Only with a certain foundation will you understand why you should do this.

　1. Brighten the too dark red channel

Open the picture, enter the channels palette, and click the red channel

Click on the menu: Image\Apply Image. The settings are as follows

2. Most of the details in the blue channel are damaged and the level value has reached 255, which cannot be restored using conventional adjustment methods. The purpose of this step is to slightly reduce the level value of the damaged details below 255 and use the RGB composite channel to restore the details. So why not do it in one step? Because that will cause the image to be gray, so think about the principle yourself.

Click the blue channel in the channels palette

Enter from the menu: Image\Apply Image, set as follows

Confirm and apply the image again, with the following settings

OK, now the image looks good, but the shadows are still a bit reddish. Use the color range command to make some unconventional adjustments. Enter from the menu: select \Color Range, perform color sampling at the location as shown in the picture, and set as follows

After confirmation, a selection (ant line) appears on the image

Create a new curve adjustment layer and adjust the red and green channels

In order to make the red part more vivid, you can apply a mask in the above steps and control the opacity yourself. Image repair completed

Author: Huo Mian Source: Tutorial Network

Original image

Effect

Before studying this tutorial, you should have a corresponding understanding of the concept and function of channels. Only with a certain foundation will you understand why you should do this.

　1. Brighten the too dark red channel

Open the picture, enter the channels palette, and click the red channel

Click on the menu: Image\Apply Image. The settings are as follows

2. Most of the details in the blue channel are damaged and the level value has reached 255, which cannot be restored using conventional adjustment methods. The purpose of this step is to slightly reduce the level value of the damaged details below 255 and use the RGB composite channel to restore the details. So why not do it in one step? Because that will cause the image to be gray, so think about the principle yourself.

Click the blue channel in the channels palette

Enter from the menu: Image\Apply Image, set as follows

Confirm and apply the image again, with the following settings

OK, now the image looks good, but the shadows are still a bit reddish. Use the color range command to make some unconventional adjustments. Enter from the menu: select \Color Range, perform color sampling at the location as shown in the picture, and set as follows

After confirmation, a selection (ant line) appears on the image

Create a new curve adjustment layer and adjust the red and green channels

In order to make the red part more vivid, you can apply a mask in the above steps and control the opacity yourself. Image repair completed