Adobe Photoshop Tutorial: Infrared Photo Effect

Step 12: Drag The "Colorize" Layer Up Between The Channel Mixer and Grain Layers

Next, click on the "colorize" layer and drag it up between the Channel Mixer adjustment layer and the "grain" layer. You'll see the line dividing the two layers highlight as you get close to it. Release your mouse at that point to drop the layer into place:

Step 13: Change The Blend Mode To "Overlay" And Lower The Opacity To 50%

Finally, change the blend mode of the "colorize" layer from Normal to Overlay and then lower the opacity of the layer to 50%:

And we're done! We've brought some of the original color back into the effect.

Here's the image as it was back before we started:

And here's the final result: