Enfocar imágenes borrosas

Use la desconvolución para enfocar imágenes borrosas

Un tipo de distorsión común en las imágenes es el efecto de desenfoque, que puede deberse al movimiento o a una lente mal enfocada. El efecto de desenfoque se representa mediante un operador de distorsión, que también se conoce como función de dispersión puntual (PSF). Distintos algoritmos calculan y corrigen el desenfoque según la información disponible sobre la PSF y el ruido de la imagen.

Funciones

`deconvblind`	Deblur image using blind deconvolution
`deconvlucy`	Deblur image using Lucy-Richardson method
`deconvreg`	Deblur image using regularized filter
`deconvwnr`	Enfocar una imagen borrosa usando el filtro de Wiener
`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`	Rellenar arreglos

Temas

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.

Ejemplos destacados

Deblur Images Using a Wiener Filter

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

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Deblur Images Using Regularized Filter

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

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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.

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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.

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