Photoshop couple photo palette: Blue and yellow color couple photos

Blue-yellow is a very common hue, classical but has a strong artistic color, is a necessary color Studio magic weapon. Let's slowly crack down on this hue. The quickest way to do this is to use the channel substitution method to quickly get a two-color picture and then turn the Two-color into the blue and yellow we need. Then use the Palette tool to enhance the contrast and color concentration, local rendering some complementary colors can be completed.
Original

Final effect