Learn curve tools, make popular tones

Now the most popular post processing is PS preset action, a key to complete convenient and quick. Many special screen effects, as long as the corresponding preset action files found on the network, anyone can easily pull out beautiful tones. But what most people don't realize is that the principle isn't that hard, and I'll start with the most common curve tools to explain how to create popular tones ~!

The Curve tool is a very common and powerful tool, and it's good enough to create surprises for your photos. Now we're going to start the color processing. Color processing in the RGB color space is characterized by a combination of color values and the brightness of the image, unlike lab color spaces where brightness and color can be handled separately. So in RGB color space, we are relatively easy to make high light and dark part of the separation of colors, imitate the effect of retro. For example, if you adjust the brightness contrast of the blue image, the image will naturally be yellow.

There is a special curve adjustment method that allows the picture to gain negative effects. Opens the Curves dialog box, which allows you to accurately overweight the entire image tone by adjusting the curve state of each color.

Positive negative punch principle.

The effect of negative punch on film.

The horizontal axis in the histogram represents the brightness in the image, from left to right, from the whole black to the full white; the vertical axis represents the relative number of pixels in the image that are in the range of brightness. In such a two-dimensional coordinate system, we can have an accurate understanding of the degree of light and shade of a picture.

In PS, you can almost replace all the palette tools with curves, and its color control ability is the most powerful in all PS palette tools. In the latter part of the work, mastered the curve is equal to grasp the most simple and effective color recipe. Although PS also has other palette tools, but the curve should be the most convenient one. Curve transition Point smoothing, in one operation can accurately complete the image overall or local contrast, tonal range and color adjustment, it can even let those very bad picture again glow luster.

A basic characteristic of a curve: in a certain area, changing the position of the curve can change the brightness of the corresponding area image, the steeper the line, the more serious the contrast. Using this rule in different color channels, we can control the change of the color tone of the screen. Of course, the basic theory of color must be familiar, through these basic knowledge and curve tools, we can pull out the color we want most.

In this example, I adjusted the left part of the blue channel curve to add a lot of blue shadows to the screen, and then lowered the middle portion of the curve to make the skin area of the screen slightly golden. These two adjustments make the curve less steep, effectively reducing the contrast of the whole graph.

The following is a comparison of the image processing:

The Curve tool makes a dramatic change in the photo, which is what I want! In fact, everyone can try to adjust the curve tool freely to see how each minor adjustment affects the photo. Only by yourself to try to find their favorite unique tone, this is the only way to form their own personal tone.

Classification:

• ps Picture processing