Blurring for effect

Blurring is the exact opposite of sharpening: Instead of heightening the contrast difference between adjoining pixels, the color and brightness differences are reduced so that pixels are much closer to each other in terms of their color levels, brightness, and contrast. Your eyes see this as a low-contrast blur effect.

Selective blurring can reduce the effect of noise or spots or even make some areas seem sharper in contrast. You can blur one area while sharpening another to create an especially dramatic look, as shown in Figure 11-20. Of course, you can also go too far with blurring and end up with something that isn't even recognizable, or you can fail to blur enough, leaving the content as distracting as ever. The key is to find a happy medium where objects are still recognizable, but nobody will spend much time looking at them.

Figure 11-20: An apparent contrast in sharp and blurred areas of an image can be dramatic.

Photoshop has blur effects to match those in the sharpen category, including the Blur tool and filters such as Blur, Blur More, Gaussian Blur (the equivalent of Unsharp Masking, but in reverse, in many ways), and Smart Blur. Photoshop also has more specialized blur effects, including:

i The kind of blur you get from subject or camera motion at relatively slow shutter speeds i Blur produced by lens effects i Radial blur, as if you were photographing a record player turntable from above as it spun i Box blur, which blurs by using mosaic-like boxes i Shape blur, which uses your choice of oddball shapes to blur your image i And much more

Get Paid to Take Digital Photos

Get Paid to Take Digital Photos

Reasonable care has been taken to ensure that the information presented in this book isĀ  accurate. However, the reader should understand that the information provided does not constitute legal, medical or professional advice of any kind.

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