The effect of the image is blue and red, with channel replacement to adjust is relatively fast. This can quickly get the desired two-color pictures, the latter only need to fine-tune the cyan and character color, and increase the brightness of the picture can be.
Original
< small map view big picture >
Final effect
1, open the material picture, press CTRL + J to copy the background layer, into the channel panel, select the green channel, press CTRL + A, press CTRL + C copy, select the blue channel, press CTRL + V paste. Point RGB channel Return to the layer panel, the effect of the following figure. This step gets a more pure cyan picture.
< map 1>
2, create hue/saturation adjustment layer, adjust the cyan, parameter settings such as Figure 2, the effect is shown in Figure 3. This step turns the cyan in the picture into a lighter blue color.
< map 2>
< map 3>
3, create curve adjustment layer, RGB, green, blue adjustment, parameter settings such as Figure 4-6, the effect is shown in Figure 7. This step is mainly to brighten the dark part of the picture, and to add blue to the picture.
< map 4>
< map 5>
< map 6> categories: