Focus Blur Plug-in

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# Focus blur Plug-In

- Description
- Usage
- Download
  - Install
  - Changes
- References

## Description

This plug-in makes a out of focus with luminosity and depth, like a sight or lenses. It can be used with depth map, depth fakes and shining effect. Also it works as a simple and applicable blur.

## Usage

- Function and dialogue
- Throw a shadow with Focus blur
- Applying depth effect

## Download

- standard - version 3.2.4 (178Kb)
- for development - version 3.0.20 (192Kb)

### Install

It requires the Gimp version 2.4 and compiling environment.

Fast rendering requires FFTW 3 (recommended).

>     ./configure ; make install-user

If the Gimp has been installed in non-standard directory, add build time option --with-gimp-prefix=<dir>. The directory is same as specified with --prefix=<dir> for building the Gimp.

See INSTALL about other options.

### Changes

#### version 3.2.4

- merged changes of version 3.0.20

#### version 3.0.20

- AAA (Anti-anti-alias) is supported.
- The result of focal point is clear in FFT normal quality.

#### Changes from older version (fblur 2.x)

Sticking to usable, and it improves readability, interface and performance.

- It is adapted for Gimp 2.4 series, and it is being maintained with priority.
- Parallel computing has been supported, it works with multi-processors.
- FFT has been taken, it makes performance in rendering.
- Interface for brush model was improved.
- Interface for shining effect was improved.
- Depth processing was improved.
- It is using percentage for almost numerical parameters.

also there is lost features.

- Color is lost. it's not smart about implement. I have no idea.
- Ignoring white is lost. I couldn't believe it.
- Switching black and white for depth map is obsolete. specification is fixed with black means near.
- Gap adjustment is lost. center of gravity could be made by an option.
- Ignoring tool tips, it's model on common plug-ins.

## References

- Bokeh - Wikipedia, the free encyclopedia
- FFTW Home Page
- Linear Image Processing

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