Results 11 to 20 of about 98,726 (338)

Adaptive Interpolation Scheme for Image Magnification Based on Local Fractal Analysis

open access: yesIEEE Access, 2020
In this paper, we constructed a new rational fractal interpolation model with scale factors and shape parameters. The model obtains different expressions by changing the scale factor, according with the diversity of image features.
Gang Song   +5 more
doaj   +1 more source

Research on fractal image compression hybrid algorithm based on convolutional neural network and gene expression programming

open access: yesJournal of Algorithms & Computational Technology, 2019
Regarding the problems of insufficient image segmentation intelligence, low compression rate, slow speed for global searching to find the optimal fractal image compression encoding, and bad decoding effect, this article proposes the fractal image ...
Wenjing Li   +3 more
doaj   +1 more source

Application of Fractal Dimension for Quantifying Noise Texture in Computed Tomography Images [PDF]

open access: yes, 2018
Purpose Evaluation of noise texture information in CT images is important for assessing image quality. Noise texture is often quantified by the noise power spectrum (NPS), which requires numerous image realizations to estimate.
Crotty, Dominic J.   +4 more
core   +2 more sources

FRACTAL ANALYSIS OF TRABECULAR BONE: A STANDARDISED METHODOLOGY

open access: yesImage Analysis and Stereology, 2011
A standardised methodology for the fractal analysis of histological sections of trabecular bone has been established. A modified box counting method has been developed for use on a PC based image analyser (Quantimet 500MC, Leica Cambridge). The effect of
Ian Parkinson, Nick Fazzalari
doaj   +1 more source

Face image matching using fractal dimension [PDF]

open access: yes, 1999
A new method is presented in this paper for calculating the correspondence between two face images on a pixel by pixel basis. The concept of fractal dimension is used to develop the proposed non-parametric area-based image matching method which achieves ...
He, Fangpo, Kouzani, Abbas, Sammut, Karl
core   +1 more source

Color Image Encryption Using Hybrid Method of Fractal-Based Key and Private XOR Key [PDF]

open access: yesKirkuk Journal of Science, 2018
The main idea of image encryption is to ensure secure transmitting it in the open network by transforming the image to not understandable form so that unauthorized person cannot decrypt and see it.
Faten H. MohammedSediq   +2 more
doaj   +1 more source

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

Toward reduction of artifacts in fused images [PDF]

open access: yes, 2011
Most fusion satellite image methodologies at pixel-level introduce false spatial details, i.e.artifacts, in the resulting fusedimages. In many cases, these artifacts appears because image fusion methods do not consider the differences in roughness or ...
Alonso   +44 more
core   +2 more sources

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