Iris Blur in AKVIS Refocus: Blur the Background of a Photo

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Tutorial: AKVIS Refocus

Iris Blur Mode


Iris Blur mode creates shallow depth-of-field effect, blurring the background while keeping the subject in focus. In contrast to Tilt-Shift mode, this one lets you specify the shape of the sharp area (ellipse, rectangle).

Real photographers can achieve this effect by opening aperture and using different lenses. With AKVIS Refocus you can create a blur background in a click.

Iris Blur
Iris Blur Mode
(Hover the cursor over the image to see the original version)

Follow the steps below to apply this effect to a photo:

  • Step 1. Adjust the Preview option:

      Fast Preview - this option lets you try the settings on a smaller copy of the original image.

      Full Processing - the image in its original size will be processed with the chosen parameters.

    Processing will start automatically, in the visible part of the image, every time you change a parameter or the effect area.

    Once you have adjusted the parameters, it is recommended to try the full processing to make sure that the best settings are chosen. Choose the Full Processing option or click on to process the entire image.

  • Step 2. Activate the Blur Area tool and adjust the effect area with the markers that appear over the image in the After tab.

    Blur Effect Area

      - solid line helps to adjust the size of the un-blurred area;

      - dots are used to rotate, stretch, or compress the effect area;

      - square markers help to change a form of an ellipse.

      - internal dashed line lets adjusting smooth transition between blurred and un-blurred areas;

      - external dashed line defines the area of maximum blur.

    To move the area, place the cursor in the un-blurred part (it will turn into crossed arrows ) and drag holding down the left mouse button.

    To re-size any section, put the cursor on the line bounding this area (it will look like a double arrow ) and drag with the left mouse button.

    To rotate, stretch, or compress the area, place the cursor over a dot (it will turn into a rounded double-sided arrow ) and move holding down the left mouse button.

    To change a form of the area, drag a square marker.

    Adjust Blur Effect Area

      Hint: You can hide the lines by deselecting the tool .

  • Step 3. Use one of the ready-to-use presets or adjust the parameters.

    The Blur parameter lets you adjust the strength of the blur effect. The higher the value, the greater the blur is.

    Blur = 25 Blur = 50
    Blur = 25 Blur = 50

  • Step 4. You can also change the bokeh parameters for the spots of light in the blurred area.

    All light spots in the out-of-focus region take the form of bright glare. By default, they look like round discs. You can change their form selecting a shape and adjusting the parameters.

    Iris Blur Effect
    Iris Blur Effect
  • Step 5. Press the button to start processing of the entire image.
  • Step 6. The program lets you save your favorite settings as a preset and use them in the future.

    Note that the presets save only the parameters values in the Settings Panel, and do not save the effect area.

How It Works How It Works
   — Workspace — Workspace
   — Using the Program — Using the Program
   — Refocus — Refocus
   — Tilt-Shift — Tilt-Shift
   — Iris Blur — Iris Blur
   — Motion Blur — Motion Blur
   — Radial Blur — Radial Blur
   — Bokeh Shapes — Bokeh Shapes
   — Preferences — Preferences
   — Batch Processing — Batch Processing
Examples Examples
   — Girl with Flowers: Focus Correction — Girl with Flowers: Focus Correction
   — Look into My Eyes: Selective Focus — Look into My Eyes: Selective Focus
   — Refocusing and Texture — Refocusing and Texture
   — Toy World: Tilt Shift Effect — Toy World: Tilt Shift Effect
   — Archery: Shifting Focus — Archery: Shifting Focus
   — Iris Berries: Image Refocusing — Iris Berries: Image Refocusing


Refocus v. 8.0 - Free 10-day Trial    Download


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