Image Zooming Using Inverse Slantlet Transform

Digital image is widely used in computer applications. This paper introduces a proposed method of image zooming based upon inverse slantlet transform and image scaling. Slantlet transform (SLT) is based on the principle of designing different filters for different scales. <br />First we apply...

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Autor principal:	Ahlam Hanoon
Formato:	article
Lenguaje:	EN
Publicado:	Al-Khwarizmi College of Engineering – University of Baghdad 2009
Materias:	DWT SLT ISLT SCLIM bOX filter Bartlett filter Image Zooming Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/1d51fff3f8d9412b8ce6275e817bae4b
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id	oai:doaj.org-article:1d51fff3f8d9412b8ce6275e817bae4b
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spelling	oai:doaj.org-article:1d51fff3f8d9412b8ce6275e817bae4b2021-12-02T07:35:48ZImage Zooming Using Inverse Slantlet Transform1818-1171https://doaj.org/article/1d51fff3f8d9412b8ce6275e817bae4b2009-01-01T00:00:00Zhttp://www.iasj.net/iasj?func=fulltext&aId=2316https://doaj.org/toc/1818-1171Digital image is widely used in computer applications. This paper introduces a proposed method of image zooming based upon inverse slantlet transform and image scaling. Slantlet transform (SLT) is based on the principle of designing different filters for different scales. <br />First we apply SLT on color image, the idea of transform color image into slant, where large coefficients are mainly the signal and smaller one represent the noise. By suitably modifying these coefficients , using scaling up image by box and Bartlett filters so that the image scales up to 2X2 and then inverse slantlet transform from modifying coefficients using to the reconstructed image . <br />From the simulation result, it has been found that the reconstructed image is 2X2 larger than the image that found from the inverse without scaling up the coefficients.<br />Comparison of image zooming using inverses SLT by box and Bartlett filters, found that, because of the linear interpolation done by using Bartlett the image appears to be smoother than the image obtained using a box filter. <br />The performance of these techniques (image zooming using inverse SLT) has been evaluated by computer programs with MATLAB 7.04 (R2007a) language.<br />Ahlam HanoonAl-Khwarizmi College of Engineering – University of BaghdadarticleDWTSLTISLTSCLIMbOX filterBartlett filterImage ZoomingChemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 5, Iss 2, Pp 54-65 (2009)
institution	DOAJ
collection	DOAJ
language	EN
topic	DWT SLT ISLT SCLIM bOX filter Bartlett filter Image Zooming Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	DWT SLT ISLT SCLIM bOX filter Bartlett filter Image Zooming Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Ahlam Hanoon Image Zooming Using Inverse Slantlet Transform
description	Digital image is widely used in computer applications. This paper introduces a proposed method of image zooming based upon inverse slantlet transform and image scaling. Slantlet transform (SLT) is based on the principle of designing different filters for different scales. <br />First we apply SLT on color image, the idea of transform color image into slant, where large coefficients are mainly the signal and smaller one represent the noise. By suitably modifying these coefficients , using scaling up image by box and Bartlett filters so that the image scales up to 2X2 and then inverse slantlet transform from modifying coefficients using to the reconstructed image . <br />From the simulation result, it has been found that the reconstructed image is 2X2 larger than the image that found from the inverse without scaling up the coefficients.<br />Comparison of image zooming using inverses SLT by box and Bartlett filters, found that, because of the linear interpolation done by using Bartlett the image appears to be smoother than the image obtained using a box filter. <br />The performance of these techniques (image zooming using inverse SLT) has been evaluated by computer programs with MATLAB 7.04 (R2007a) language.<br />
format	article
author	Ahlam Hanoon
author_facet	Ahlam Hanoon
author_sort	Ahlam Hanoon
title	Image Zooming Using Inverse Slantlet Transform
title_short	Image Zooming Using Inverse Slantlet Transform
title_full	Image Zooming Using Inverse Slantlet Transform
title_fullStr	Image Zooming Using Inverse Slantlet Transform
title_full_unstemmed	Image Zooming Using Inverse Slantlet Transform
title_sort	image zooming using inverse slantlet transform
publisher	Al-Khwarizmi College of Engineering – University of Baghdad
publishDate	2009
url	https://doaj.org/article/1d51fff3f8d9412b8ce6275e817bae4b
work_keys_str_mv	AT ahlamhanoon imagezoomingusinginverseslantlettransform
_version_	1718399323782250496

Image Zooming Using Inverse Slantlet Transform

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