The overall color of the picture is a bit darker, and the background color is miscellaneous. The process can be replaced with channel replacement to eliminate excess noise, and then into a unified pink, the latter step to enhance the color of the light and dark.
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Original
< small map view big picture >
Final effect
1, open the original material, the background layer to copy a layer. Enter the channel panel, select the green channel, press CTRL + A all, and press CTRL + C to copy. Select the blue channel, press CTRL + V paste, point RGB channel return to the layer board, the effect of the following figure.
< map 1>
2, create a hue/saturation adjustment layer, the cyan adjustment parameter settings such as Figure 2, the effect is shown in Figure 3. This step turns the background cyan to red.
< map 2>