removal by exemplar-based inpainting using matlab

8/19/2019 Removal by Exemplar-based Inpainting using matlab

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Image Inpainting

Exemplar Based ImageInpainting

Under the guidance of:Dr. Prem Kalra

Ms. Nidhi Arora

Submitted by:Sahil AggarwalAnshika Mehndiratta

Afrin Ahmed


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AimGiven an image and the user selected

area, our

goal is to complete the unknownregions based

on advantages of two approaches :

1. Texture synthesis

2. tructure propagation


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Stes:!" #i$en any image % the region to be inainted

is selected by the user.

&" 'eeat until done:

•) (dentify the )ll front * boundary of region tobe inainted "

•) +omute riorities P*" for e$ery inboundary region.

•) ,ind the source atch which has minimumdistance with target atch.

•) +oy image data from source to targetatch.

•) Udate con)dence $alue of the target atch.


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+omute Priorities #i$en a atch - centred at the oint for

some at boundary of unknown region % wede)ne its riority P*" as the roduct of twoterms:

!"p# $ %"p#&"p#

+*" is the con)dence term which deendson con)dence of art of atch in knownregion.


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Data erm D*" is the data term and deends on the

normali/ation factor% unit $ector orthogonal to

the front boundary in the oint and theorthogonal oerator alied to the intensitygradient.


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Searching for a source

atch!. ,or each target atch we select a source

atch based on minimum distance betweenthem.

&. Distance here is de)ned as sum of s0uaredi1erences of the already )lled i2els in the

two atches.


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Udating con)dence in the targetatch

After the target atch is )lled with new i2el$alues% the con)dence +*" of each i2el intarget is udated with the con)dence of theart of the atch in unknown region 3ust

re$iously )lled.


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'esults


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+omarisons


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4ur result Paer result


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4ur result Paer


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Paer result 4ur result


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4ur result Pa er result


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Paperresult

Our result


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52eriment and

6uantitati$ecomarison


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#round ruth 4ur result


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5dges of the inainted 5dges of the ground

removal by exemplar-based inpainting using matlab

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