Results 1 to 10 of about 11,065 (211)

Positivity Preserving Interpolation Using Rational Bicubic Spline [PDF]

open access: goldJournal of Applied Mathematics, 2015
This paper discusses the positivity preserving interpolation for positive surfaces data by extending the C1 rational cubic spline interpolant of Karim and Kong to the bivariate cases. The partially blended rational bicubic spline has 12 parameters in the
Samsul Ariffin Abdul Karim   +2 more
doaj   +5 more sources

An Effective Bicubic Convolution Interpolation-Based Iterative Luma Optimization for Enhancing Quality in Chroma Subsampling [PDF]

open access: goldIEEE Access, 2021
Traditionally, prior to compressing an RGB full-color image, for each converted $2\times 2$ CbCr block $B^{CbCr}$ , chroma subsampling only downsamples $B^{CbCr}$ , but without changing the luma block $B^{Y}$ at all.
Kuo-Liang Chung   +2 more
doaj   +4 more sources

A New Face Region Recovery Algorithm based on Bicubic Interpolation

open access: diamondJOIV: International Journal on Informatics Visualization, 2023
Recently, researchers focused on face image manipulation detection and localization techniques because of their importance in image security applications.
Muntadher H. Al-Hadaad   +2 more
doaj   +3 more sources

A New Face Image Authentication Scheme based on Bicubic Interpolation

open access: diamondAl-Iraqia Journal for Scientific Engineering Research, 2023
 Nowadays, image manipulation algorithms are increasingly being used even by people who do not have any deep knowledge of technology, and one can easily find an application to manipulate face image for various purposes.
Muntadher H. Al-Hadaad   +2 more
doaj   +3 more sources

Piecewise planar method of bicubic interpolation

open access: diamondComputer Science and Engineering, 2020
The article on the example of finite elements of bicubic interpolation presents the key ideas and technology of the piecewise planar method (PPM) for the construction of basic functions.The effcient use of triangular plane fragments characterizes PPM as one of the simple and visual methods of constructive theory of serendipity approximations.
A. Khomchenko, I. Sidenko
openaire   +2 more sources

Steganography Based on Integer Wavelet Transform and Bicubic Interpolation [PDF]

open access: bronzeInternational Journal of Image, Graphics and Signal Processing, 2012
Steganography is the art and science of hiding information in unremarkable cover media so as not to observe any suspicion. It is an application under information security field, being classified under information security, Steganography will be characterized by having set of measures that rely on strengths and counter attacks that are caused by ...
N. Ajeeshvali, B. Rajasekhar
openaire   +3 more sources

Bilinear and bicubic interpolation methods for division of focal plane polarimeters

open access: goldOptics Express, 2011
This paper presents bilinear and bicubic interpolation methods tailored for the division of focal plane polarization imaging sensor. The interpolation methods are targeted for a 1-Mega pixel polarization imaging sensor operating in the visible spectrum.
Shengkui, Gao, Viktor, Gruev
openaire   +3 more sources

Rational bicubic Ball for image interpolation

open access: diamondJournal of Physics: Conference Series, 2019
Abstract In this study, a new rational bicubic Ball with six free parameters is proposed for image interpolation. These free parameters can be used to refine the shape of the surface. This rational bicubic Ball function is constructed by using tensor product approach. The proposed scheme is tested to grayscale image upscale. An efficient
N A Zulkifli   +3 more
openaire   +2 more sources

Feature Image Watermarking Based on Bicubic Interpolation of Wavelet Coefficients Using CRT

open access: goldCommIT Journal, 2017
The main objective of watermarking method is to improve the robustness and imperceptibility. This paper introduces an improved CRT watermarking method using absolute value of interpolated wavelet coefficients aiming to improve the imperceptibility and ...
Prajanto Wahyu Adi   +2 more
doaj   +3 more sources

Analysis of Medical Image Resizing Using Bicubic Interpolation Algorithm

open access: bronzeJurnal Ilmu Komputer, 2021
Image interpolation is the most basic requirement for many image processing tasks such as medical image processing. Image interpolation is a technique used in resizing an image. To change the image size, each pixel in the new image must be remapped to a location in the old image to calculate the new pixel value.
Ahmat Adil, Bambang Krismono Triwijoyo
openaire   +3 more sources

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