Photoshop use channel to create romantic tone

When the last P figure likes to study how simple color channel, this simple method of channel rendering intent, and share it with everyone, hope you like. Original image: the effect is as follows: steps:

When the last P figure likes to study how simple color channel, this simple method of channel rendering intent, and share it with everyone, hope you like.

Original image:

The effect is as follows:

Steps: