Effect:
Comparison between the original picture and the rendering:
1. Open the image, press Ctrl+J to copy a layer and create a channel mixer adjustment layer.
2. Set the channel mixer setting parameters as shown in the figure. Make sure to check "Single Color"
3. After using the channel mixer, we will find that the details of the sky part of the picture are seriously lost, so in this step we will restore the color information of the sky part, so we must first make a selection of the sky part.
First hide the Channel Mixer adjustment layer, then execute "Select - Color Range", use the eyedropper to absorb the sky part, adjust the color tolerance to 160, OK, so that we have selected the sky part.
4. Return to the Channel Mixer adjustment layer, select the mask on the right, and then fill it with black. The sky part will be restored.
