How to p out flowers on a black background?

In photography, we often see a low-key still life photography. Its typical feature is to highlight the main body with a black background, and the overall picture is simple and rich in texture. Today, we will learn how to use the later period to create this photography style.

Let's start with a picture:

Eliminate unnecessary color information. For example, in this photo, we just want to keep the color of the flowers. We will first minimize the saturation of green and yellow and eliminate the color of the socket:

Then we change the background color to black and white. The background color is mainly composed of cyan and blue, so we will minimize the saturation of cyan and blue.

After such a simple adjustment, this photo becomes a local color effect. If we want to turn the background completely black, we will create a new color range and put the center of the background on the left side of the flower:

Then we reduced the exposure to-100:

It can be seen that the background is obviously darker at this time, but the flowers are not affected, because the color range will only affect the area that is similar to the color of the center point and is inside the circle.

Similarly, we can create a new color range and put the center point on the background to the right of the flower:

Then we reduced the exposure to-100:

As you can see, the background is deeper now. Similarly, we can achieve a completely black background by establishing a variety of color ranges:

Is it a very simple and practical late skill?