Image Deblurring (Image Processing Toolbox)

Image Processing Toolbox

Terminology

An understanding of the following terms will help you to use this chapter.

Terms
MATLAB Definition

Deconvolution
The process of reversing the effect of convolution.

Distortion operator
The operator that describes a process causing the acquired image to be different from the original scene. Distortion caused by a Point Spread Function (see below) is just one type of distortion.

Optical transfer function (OTF)
In the frequency domain, the OTF describes the response of a linear, position invariant system to an impulse. The OTF is the Fourier transform of the point spread function (PSF).

Point spread function (PSF)
In the spatial domain, the PSF describes the degree to which an optical system blurs (spreads) a point of light. The PSF is the inverse Fourier transform of the OTF.

Terms	MATLAB Definition
Deconvolution	The process of reversing the effect of convolution.
Distortion operator	The operator that describes a process causing the acquired image to be different from the original scene. Distortion caused by a Point Spread Function (see below) is just one type of distortion.
Optical transfer function (OTF)	In the frequency domain, the OTF describes the response of a linear, position invariant system to an impulse. The OTF is the Fourier transform of the point spread function (PSF).
Point spread function (PSF)	In the spatial domain, the PSF describes the degree to which an optical system blurs (spreads) a point of light. The PSF is the inverse Fourier transform of the OTF.

Image Deblurring Understanding Deblurring