We use Photoshop to make the gray landscape photos clear and vivid. Image courtesy of cflig. Here I mainly talk about my thoughts.
The original pictures and renderings are as follows
Adjust the color levels first. Leave the rest unchanged. Create a new color level adjustment layer. Just take the black field straw in the red circle in the picture and click on it at the marked place in the picture. The effect is as shown in the picture.
Create another adjustment layer of color levels, click on the place marked 2 in the picture, and then use a dotted brush on the mask to erase the lower right part.
Create a Hue and Saturation adjustment layer. The main adjustments are: red to reduce saturation, yellow to increase saturation, and green to increase saturation. Create an optional color adjustment layer. The main adjustments are: cyan and a little black. Create a color balance adjustment layer and adjust it: add a little blue to the dark tone, and add a little 縁.
OK, stamp the visible layer (shift+alt+ctrl+E), switch to CMYK mode, enter the channel, select the black channel for USM sharpening:
The parameter radius can be set to 0.2. If it is too large, the picture will look vulgar. You can also use CTRL+F to sharpen again after sharpening. OK, switch back to RGB mode and apply the image to further increase the overall sharpness. Then adjust the curves to brighten it up a bit.