# Gaussian blur

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## Gaussian blur

A type of image filter commonly used to blur an object. It may be used to blur the entire image or to produce a drop shadow effect. See image filter.

Gaussian Blurred The Gaussian Blur filter was applied to the original image (top) to produce the one below. (From "Moonlit Gladiolas" by Barbara Postel. Original image courtesy of Pyramid Studios, www.artistexpo.com)

Gaussian Blurred The Gaussian Blur filter was applied to the original image (top) to produce the one below. (From "Moonlit Gladiolas" by Barbara Postel. Original image courtesy of Pyramid Studios, www.artistexpo.com)

A Drop Shadow The Gaussian Blur filter is widely used to create a drop shadow effect around text. Using an image editor, a duplicate of the text is made, changed to black and then passed through the filter. The blurred result is aligned under the original text to create the effect.
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(A) Image "window" has blurred duplicated region with (Gaussian blur radius = 0.5) which highlighted by the red rectangle.
The Gaussian blur block uses eleven built-in multipliers on the FPGA, which are then summed to obtain the result.
Brownian motion is pervasive in many branches of science, including image science, and Gaussian blurs and the heat equation appear quite naturally in image analysis.
In the first experiment, the original image "Cameraman" with complex background is blurred by Gaussian blur, out-of-focus blur, linear motion blur, and uniform blur, respectively.
Some of the linear and non-linear filtering techniques can be proposed by Ruchika Chandel, Gaurav Gupta [5],non-linear filter such as median filter is used for the removal of noise in an image and a linear filter such as Gaussian blur is proposed for practical purposes.
In chromatography, EMG is employed since mid-1960s to describe chromatographic peaks, whose shape is presumably determined by the diffusion-caused Gaussian blur of a compound during its passage through a column and by extracolumn effects of its exponential dilution in a detector cell [10, 21, 22].
This section presents the experiments on dataset LIVE II [14] owing to the given distortion parameters, in which 29 high-resolution 24 bits/pixel color images are distorted by five distortion types: JPEG 2000, JPEG, white noise, Gaussian blur, and transmission errors using a fast fading Rayleigh channel model [31].
Let's start with a "Gaussian blur filter", a widely used filter that reduces image detail and noise (for example, to simulate lens out of focus blurring).
Additionally, the software includes a full suite of post-processing tools, including RGB combine, digital development, Gaussian blur, deconvolution, unsharp mask, and wavelet sharpening routines.
The photo effects feature allows users to select four different special effects such as natural, Gaussian blur, sepia and monochrome, to add a bit of spice to online videos or photos slideshows.
The ideal image of cameraman is degraded by Gaussian blur with hsize = 7 andsigma = 2 and out-of-focus blur with radius = 3,respectively.

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