PS Picture palette: The mode of applying layer blending mode overlay

For many Photoshop users, layer blending pattern is not unfamiliar, in the use of the process, in order to find the best performance, we will not naturally to the layer blending mode of the option to try each, and then will be repeated to get the desired results. This article will explain in detail how the layers overlap in Photoshop layer blending mode works. Common layers overlap Two layers or more than two layers, generally speaking, two layers of overlapping better control and easy to see effect, more than two layers are rarely stacked in layer mode, so it is difficult to control the effect, it is really necessary to do so also generally use another method. Then the mixed mode of the Photoshop overlay graph "superposition", "soft light", "strong light", "brightness", "linear Light", "Point Light" and "solid color mixing" to explain the common way.

Open Photoshop to create a new grayscale-mode square document. Open the Gradient tool on the toolbox, and in the Gradient Editor dialog box that pops up, select black and white gradient and set the smoothness value to "0%", as shown in Figure 1

Stretch the black and white gradient from left to right on the new document, and view the histogram, as shown in Figure 2. It's interesting to compare the histogram of smoothness 100% and 0%.

Figure 2 Black and white gradient effect and histogram display

Open the Layers panel, copy the "background" layer, get the "background copy" layer and rotate clockwise 90 degrees, as shown in Figure 3.

Figure 3 Copy layer and rotate direction

Underneath the open Layers panel, by pressing the Create new fill or adjust Layer button, selecting the tone Detach command in the menu, and setting the level value to 10 in the tonal Separation dialog box that pops up, 10 levels of stripes appear, as shown in Figure 4.

Figure 4 Tint Separation grayscale image

According to the formation of the above color-level model to understand the basis of the layer blending mode, the following step-by-step to make the bottom of the image to brighten several modes of in-depth analysis.

1, "superposition" mode

"Overlay" is a combination of "multiply" and "filter", Photoshop automatically detects red, green, and blue channels of color information, the layer of all color information will be replaced by the background layer color, which will vary according to the picture hierarchy and the resulting color changes. As shown in Figure 5.

Figure 5 The result color of the overlay mode

Then we look at the effect of the overlay pattern on the image, open a portrait photo, create a new layer, fill it with blue, set the blending mode of the layer to "overlay", that is, create a mix, the photo shows a clear blues effect, as shown in Figure 6.

Figure 6 Opening an image file New layer fill blue and set to overlay mode

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