Teach you how to adjust pictures using PS curves

final renderings

Original picture
1. Open the original image and press Ctrl+M to open the curve. In the channel drop-down box on the panel, you can see that in addition to the commonly used RGB composite channels, there are three monochrome channels of red, green and blue. Adjust these three monochromes respectively. The curve of the channel will change the proportional relationship between the red, green and blue colors in the image, which plays a very good role in finely adjusting the tone.

When this point is raised upward, the image color becomes redder because the red channel is brightened, which increases the red color in the image, so the gray clouds that were originally RGB equivalent begin to become redder.

3. So how should this image be adjusted? The first choice is to analyze that the color tone of the original image is too dim, hoping to adjust the clear feeling of morning fog. In the red channel, establish a curve control point based on the clouds and fog. Press this point downwards, and the image tone will begin to turn cyan, because The red in the clouds and mist is reduced, and the blue and green add up to cyan.

4. Select the blue channel, use the bright fog and the dark water as sampling points, establish control points on the curve, and lift these two points up and down respectively. In other words, the bright blue color is added. The color makes the fog bluer, reduces the dark tones of blue, and makes the water yellowish green.

Pick a point at the dark position of the water surface, and lift this point on the curve slightly upward. The water surface will be more green, and the blue and green will be added to cyan. This will make the river appear clear. Create a control point at the bottom of the curve, and adjust it appropriately. Press down to keep the warm tone of the water steady.

6. Finally, return to the RGB channel and make detailed and comprehensive adjustments to the tone of the image as needed to achieve a satisfactory image effect. In this picture, the brightness of the morning fog is increased and the brightness of the water surface is darkened.

7. After adjusting the curve of the red channel to look like this, why does the color of the image look like this? Because the bright red on the curve is suppressed, the bright sky in the image is left with only blue and green, which add up to cyan. The dark red on the curve is brightened, and the dark green mountains and dark mountains in the image are Yellow water becomes warm red. If you can understand the effect produced by this curve, you can actively use the curve to adjust the channel to achieve the various color tones you need.

Okay, this is the result after I adjusted it.
But this is not the only answer. You can also try it. According to your own ideas and understanding, you can adjust the color tone you need.
The final rendering is as follows: