Sign & Digital Graphics

April '18

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38 • April 2018 • S I G N & D I G I T A L G R A P H I C S DIGITAL PRINTING AND FINISHING DIGITAL GRAPHICS Brush tool. Use a soft, round brush. Press D then X to set the foreground color to black, and paint areas where you want to remove the blur effect. Paint with gray to partially mask areas. Masking gives you more precise control over the location and intensity of the blur. Tweaks Inevitably you'll have to tweak the effect and return to the Filter Gallery to make a few adjustments. Easy Peasy! Click on the Blur Gallery icon in the layers panel to display the interface. Make adjust- ments and click OK. For final tweaks I find that the Blur tool is effective and very precise because it's manual. Duplicate the Smart Object layer and rasterize it (Layer > Rasterize > Smart Object) Choose a soft brush and set the strength to between 50 and 100 percent. Drag over small edges that need final blurring. Iris Blur As we've seen with the Field Blur filter, the focus is controlled by adding pins in various locations and dialing the amount of focus on each pin. The Filter Gallery offers a few alternatives to account for any type of image where the location and intensity of the blur needs to be controlled. The Iris Blur for example, extends the blurred areas outside a spe- cific circumference. This can come in handy when you want to be more specific in the focused region. In this case I want to emphasize the jumper by keeping him in sharp focus and gradually blur the areas around him. I also want the man who is looking over the bridge in focus, too (see Figure 8). You can access the jumper image at: https:// foFXsaW9czM8ZxYpetq/view?usp=sharing I've duplicated the layer and con- verted it to a smart object. Then I opened the Blur Gallery and selected Iris Blur. A circular shaped bounding box surrounds the figure. This is the key to manipulat- ing the blur (see Figure 9). The area out- side the edge of the ellipse is where the blur occurs. As with Field Blur, the inten- sity of the blur is controlled by dragging the circular slider clockwise or counter clockwise or by dragging the slider in the control panel. From the inside edge Figure 7A, 7B: Precise blurring and focusing of areas with the filter mask as illustrated here with the flags. Controlling what is sharp and what is blurred can make a picture really pop.

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