Color exclusion sliders

The first slider bar, This Layer, hides pixels in the active layer according to their brightness values. You can abandon dark pixels by dragging the left slider triangle, and abandon light pixels by dragging the right slider triangle. Figure 13-19 shows examples of each.

♦ To create the first example, I first set the blend mode to Screen. Then I dragged the left slider bar until the value immediately to the right of the This Layer label read 170, thereby hiding all pixels whose brightness values were 170 or lower.

♦ To create the second example, I changed the blend mode to Multiply. I reset the left slider triangle to 0 and dragged the right slider triangle to 120, which hid those pixels with brightness values of 120 or higher.

Screen, This Layer: 170, 255

Figure 13-19: Two examples of modifying the blend mode and This Layer settings inside the Layer Style dialog box.

Multiply, This Layer: 0, 120

Figure 13-19: Two examples of modifying the blend mode and This Layer settings inside the Layer Style dialog box.

Drag the triangles along the Underlying Layer slider bar to force pixels in the underlying layers to show through, again according to their brightness values. To force dark pixels in the underlying image to show through, drag the left slider triangle; to force light pixels to show through, drag the right slider triangle.

Here's how I achieved the effects in Figure 13-20:

4 To achieve the effect in the top example in Figure 13-20, I started off by applying the Hard Light mode. (Those blend modes, they're keepers.) Then I dragged the left slider triangle until the first Underlying Layer value read 140. This forced the pixels in the sunset that had brightness values of 140 or lower to show through.

4 In the second example, I changed the blend mode to Overlay. Then I dragged the right Underlying Layer slider triangle to 150, uncovering pixels at the bright end of the spectrum.

Hard Light, Underlying Layer: 140, 255

Figure 13-20: Here I changed the Underlying Layer slider bar settings to force through the darkest (top) and lightest (bottom) pixels in the sunset.

Overlay, Underlying Layer: 0, 150

Figure 13-20: Here I changed the Underlying Layer slider bar settings to force through the darkest (top) and lightest (bottom) pixels in the sunset.

Bear in mind, every single adjustment made inside the Layer Style dialog box is temporary. The slider bars hide pixels; they don't delete them. As long as the layer remains intact, you can revisit the Layer Style dialog box and restore hidden pixels or hide new ones.

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