Deblurring

Deconvolution for deblurring

Images can be distorted by blur, such as motion blur or blur resulting from an out-of-focus lens. Blur is represented by a distortion operator, also called the point spread function (PSF). Different deblurring algorithms estimate and remove blur based on how much knowledge you have of the PSF and noise in the image.

Functions

`deconvblind`	Deblur image using blind deconvolution
`deconvlucy`	Deblur image using Lucy-Richardson method
`deconvreg`	Deblur image using regularized filter
`deconvwnr`	Deblur image using Wiener filter
`edgetaper`	Taper discontinuities along image edges
`otf2psf`	Convert optical transfer function to point-spread function
`psf2otf`	Convert point-spread function to optical transfer function
`padarray`	Pad array

Topics

Image Deblurring
Deblurring is a process that removes distortion from a blurry image, using knowledge of how the optical system blurs a single point of light.
Adapt the Lucy-Richardson Deconvolution for Various Image Distortions
The Lucy-Richardson deconvolution function enables you to deblur images with complicated distortions such as nonuniform image quality or undersampling.
Adapt Blind Deconvolution for Various Image Distortions
Although blind deconvolution algorithm does not require information about the blurring or noise, it enables you to deblur images that have complicated distortions such as nonuniform image quality or undersampling.
Create Your Own Deblurring Functions
To create your own deblurring functions, convert the distortion operator between the spatial and the frequency domains.
Avoid Ringing in Deblurred Images
Ringing is an artifact that appears as alternating bright and dark bands near edges. Reduce ringing by blurring the edges of the original image.

Featured Examples

Deblur Images Using a Wiener Filter

Use Wiener deconvolution to deblur images when you know the frequency characteristics of the image and additive noise.

Open Live Script

Deblur Images Using Regularized Filter

Use regularized deconvolution to deblur images when you know some information about the additive noise.

Open Live Script

Deblurring Images Using the Lucy-Richardson Algorithm

Use the Lucy-Richardson algorithm to deblur images when you know the point spread function but not the additive noise.

Open Live Script

Deblurring Images Using the Blind Deconvolution Algorithm

Use the blind deconvolution algorithm to deblur images when you have no information about the blurring or the noise.

Open Live Script