نتایج جستجو برای: multiple histogram method

تعداد نتایج: 2285760  

2017
Kim Sao Nguyen

This paper proposes a new histogram shifting-based reversible watermarking method. In contrast to other almost methods that need to use simultaneously the watermarked image and some image-dependent side information to restore the watermark and the original image, our method can do above restorations without any auxiliary information. Such methods are called free from side information. Our solut...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2005
Yong Wu Mathias Körner Louis Colonna-Romano Simon Trebst Harvey Gould Jonathan Machta Matthias Troyer

We study the performance of Monte Carlo simulations that sample a broad histogram in energy by determining the mean first-passage time to span the entire energy space of d-dimensional ferromagnetic Ising/Potts models. We first show that flat-histogram Monte Carlo methods with single-spin flip updates such as the Wang-Landau algorithm or the multicanonical method perform suboptimally in comparis...

2013
Hana H. Kareem

In this paper the color images with dim regions have been enhanced by using modified histogram equalization (MHE) algorithm. This technique uses the lightness component in YIQ color space is transformed using sigmoid function, then the traditional histogram equalization (HE) method is applied on Y component. A relationship between the mean and the average of standard deviation for images have b...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2004
Simon Trebst David A Huse Matthias Troyer

We present an adaptive algorithm which optimizes the statistical-mechanical ensemble in a generalized broad-histogram Monte Carlo simulation to maximize the system's rate of round trips in total energy. The scaling of the mean round-trip time from the ground state to the maximum entropy state for this local-update method is found to be O ( [N ln N](2) ) for both the ferromagnetic and the fully ...

Journal: :The European Physical Journal A 2013

Journal: :Journal of the Korean Society for Nondestructive Testing 2015

Journal: :Transactions of the Society of Instrument and Control Engineers 2002

Journal: :CoRR 2017
Mahdieh Poostchi Ali Shafiekhani Kannappan Palaniappan Guna Seetharaman

Histograms are commonly used to characterize and analyze the region of interest within an image. Weighting the contributions of the pixels to the histogram is a key feature to handle noise and occlusion and increase object localization accuracy of many histogram-based search problems including object detection, tracking and recognition. The integral histogram method provides an optimum and comp...

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