Photoshop Tutorial | How to Blur Background in Photoshop CS6

Photoshop Tutorial | How to Blur Background in Photoshop CS6

Short Description : 

Field Blur is the simplest of the three filters to use, but offers the least amount of direct control. When you select this option in the Filter menu, the image opens in a full size editing window. An active 'pin' is automatically placed in the center of the image, surrounded by an adjustment ring (the gray circle partially covered in white). At this point the entire image is blurred to the degree specified in the adjustment ring.

Field Blur opens with a 'pin' placed in the center of the image surrounded by an adjustment ring that applies a  blur to the entire image.

With your cursor on or near the adjustment ring you can drag your mouse along the ring's edge to adjust the blur amount. You'll see the blur value update (an example of of CS6's 'rich cursor' feature) as you move the mouse. Alternatively you can use the slider in the Field Blur panel. 

OK, so we've made the entire image blurry. Big deal. The fun starts as you add additional pins to the image. Move your cursor away from the adjustment ring and you’ll see the cursor now appears as a small pushpin with an plus sign alongside it. In this 'add pin' mode, simply click to place a new blur control so that you can specify a different  blur intensity at that image location. A blur setting of 0 prevents any blur from taking place, protecting or masking out that area of the image.

Place two pins on a single image and Photoshop creates a linear gradient that makes a smooth transition between the effects of each pin. Place three or more pins and Photoshop then constrains the effect of each pin to the image area in its immediate vicinity. You can place as many pins as you like on an image.

You can apply as many pins, at varied settings as needed to apply blur to some areas of the image while protecting areas you wish to remain sharp.

Press and hold the M key to see the actual blur mask. Areas in white have a blur applied to them while areas in black have been protected. Shades of gray represent partially affected regions.

You can see that I've added a lot of pins in this example in order to restrict the blur effects to specific areas of the image. Note that each pin can be set to its own blur value, so the real value of Filed Blur comes if you're prepared to place and adjust multiple points on an image, which admittedly can take time to get the precise results you're after.

Here's the original image. The background is distracting.

Using the Field Blur I was able to slightly blur the background, drawing attention to the dog chasing the kite.

I was able to create a gradual transition in the amount of blur on the sand by applying several pins at different intensities, but this also required numerous pins to protect the dog.

Images like this one with complex elements like the 'flying' fur of the dog call up some limitations of the Field Blur tool. If you look closely you'll find areas around the edges of the subject that will require some clean-up work with Photoshop's clone/healing tools.

While this may seem like an awful lot of work, one of the things I like best about Field Blur is that it tends to lead to more realistic results with natural-looking transitions that looks as if they could have actually been done in-camera. The Iris Blur filter, which we'll examine on the following page, can produce results with less effort. Yet it is very easy to produce an overdone result that any experienced photographer will recognize as a post processing edit.

Article Collected By : https://www.dpreview.com/articles/4400242053/photoshop-cs6-blur-gallery-tutorial

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