Partial gray picture is roughly divided into three big steps: First, you need to brighten the picture, there are many methods, you can use a curve or filter layer. Then the whole touches, can according to the color composition of the picture choose the appropriate main color. Finally, the details of the processing, such as grinding, local landscaping, increase the high light and so on.
Original
< small map view big picture >
Final effect
1, open the original image, copy a layer, in the layer option to choose "Filter Color" (The goal is to improve the overall brightness of the picture).
2, to sharpen the picture, "filter"-"sharpen"-"Smart sharpening" (parameters such as figure).
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