PS make popular non-mainstream blue background color matching method

Original illustration: effects: step 1: open the original image, select the channel mode, select the green channel (as in figure). And then ctrl + A, then the picture around the blinking dashed lines. Edit-copy. Select the blue channel, Edit-Paste. Back to the layer mode. Step 2: resizing an image----color as shown, the Green, green, blue three colors are in accordance with the above picture

Original image:

Effects:

Step one:

Open the original image, select the channel mode, select the green channel (as in figure).

And then ctrl + A, then the picture around the blinking dashed lines.

Edit-copy.

Select the blue channel, Edit-Paste.

Back to the layer mode.

Second step:

Image--adjust--color

As shown, the Green, green, blue three colors are in accordance with the above picture set of values.

Step three

As shown, click on the layer mode most of the buttons below, select the photo filter (PS version called picture filters)