Results 31 to 40 of about 94,177 (290)

A Novel (2, 3) Reversible Secret Image Sharing Based on Fractal Matrix

open access: yesIEEE Access, 2020
This article first proposes two types of three-dimensional (3D) fractal reference matrices. Then, a new reversible (2, 3) secret image sharing scheme based on a fractal matrix is presented.
Kai Gao, Ji-Hwei Horng, Chin-Chen Chang
doaj   +1 more source

Feature Changes of Selected Cebu City Landmarks: Forms and Roughness Analysis

open access: yesRecoletos Multidisciplinary Research Journal, 2013
The study aims to examine the physical change of the old and new photographs of selected Cebu City landmarks. The images were converted into a binary image using the simplest form of image processing known as thresholding effect.
Efren O. Barabat, Roberto M. Cabardo
doaj   +1 more source

A New Composite Fractal Function and Its Application in Image Encryption

open access: yesJournal of Imaging, 2020
Fractal’s spatially nonuniform phenomena and chaotic nature highlight the function utilization in fractal cryptographic applications. This paper proposes a new composite fractal function (CFF) that combines two different Mandelbrot set (MS) functions ...
Shafali Agarwal
doaj   +1 more source

FRACTAL COMPRESSION TECHNIQUE FOR COLOR IMAGES USING VARIABLE BLOCK

open access: yesICTACT Journal on Image and Video Processing, 2017
The main intention of Fractal Image Compression is to reduce the size of image and maintain good level of their reconstructed image. A major issue in Fractal Image Compression is decrease in image quality, compression ratio and PSNR.
Nisar Ahmed, Syed Abdul Sattar
doaj   +1 more source

Image Super Resolution Using Fractal Coding and Residual Network

open access: yesComplexity, 2019
Fractal coding techniques are an effective tool for describing image textures. Considering the shortcomings of the existing image super-resolution (SR) method, the large-scale factor reconstruction performance is poor and the texture details are ...
Zhen Hua, Haicheng Zhang, Jinjiang Li
doaj   +1 more source

Application of Fractal Analysis Methods of Textures Earth Surface Images for Ecological Setting Assessment [PDF]

open access: yesEPJ Web of Conferences, 2019
The use of fractal analysis methods for automatic textures earth surface image evaluation and ecological setting assessment has been proposed. Image processing techniques have been chosen for the following fractal analysis.
Akinshin Nikolay   +4 more
doaj   +1 more source

Human discrimination of fractal images [PDF]

open access: yesJournal of the Optical Society of America A, 1990
In order to transmit information in images efficiently, the visual system should be tuned to the statistical structure of the ensemble of images that it sees. Several authors have suggested that the ensemble of natural images exhibits fractal behavior and, therefore, has a power spectrum that drops off proportionally to 1/f beta (2 less than beta less ...
D C, Knill, D, Field, D, Kersten
openaire   +2 more sources

Fractal parameters and SAR images [PDF]

open access: yes2008 IEEE Radar Conference, 2008
The fractal geometry proved to be the most appropriate mathematical instrument in describing natural scenes, by means of few effective and reliable geophysical parameters. In this paper we describe a complete processing chain for the retrieving of SAR image fractal parameters and for change detection purposes.
DI MARTINO, GERARDO   +3 more
openaire   +2 more sources

Fractal analysis for biosurface comparison and behaviour prediction [PDF]

open access: yesHemijska Industrija, 2009
Fractal analysis was used in previous authors' researches for characterizations of grinded ceramics surface textures by surface profile fractal dimension.
Bojović Božica A.   +3 more
doaj   +1 more source

CAD Fractal Art Pattern Design and Evaluation Based on RBF Network Algorithm

open access: yesAdvances in Multimedia, 2022
In order to effectively solve the problems of unreasonable design and low evaluation level in the process of fractal art pattern design and evaluation, a CAD fractal art pattern design and evaluation is proposed based on RBF network algorithm.
Lina Liu, Danjun Zhu
doaj   +1 more source

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