Broad histogram relation is exact
نویسندگان
چکیده
منابع مشابه
A Variational Approach for Exact Histogram Specification
We focus on exact histogram specication when the input image is quantified. The goal is to transform this input image into an output image whose histogram is exactly the same as a prescribed one. In order to match the prescribed histogram, pixels with the same intensity level in the input image will have to be assigned to different intensity levels in the output image. A novel method enabling t...
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An exact histogram specification (EHS) method modifies its input image to have a specified histogram. Applications of EHS include image (contrast) enhancement (e.g., by histogram equalization) and histogram watermarking. Performing EHS on an image, however, reduces its visual quality. Starting from the output of a generic EHS method, we maximize the structural similarity index (SSIM) between th...
متن کاملComment on “ A Comparison Between Broad Histogram and Multicanonical Methods ”
, seems to contain at least two mistakes which deserve comment, one concerning the numerical data, the other being of a conceptual kind. The numerical data of the entropy, presented in Fig. 1 of the above mentioned paper, do not only show statistical errors but also systematic deviations from the exact result. These systematic deviations are apparent in the (physically relevant) gradient of the...
متن کامل99 9 Broad Histogram Method for Multiparametric Hamiltonians
We extended the Broad Histogram Method in order to obtain spectral degeneracies for systems with multiparametric Hamiltonians. As examples we obtained the critical lines for the square lattice Ising model with nearest and next-nearest neighbor interactions and the antiferromagnetic Ising model in an external field. For each system, the entire critical line is obtained using data from a single c...
متن کاملComment on “ A Comparison Between Broad Histogram and Multicanonical Methods ”
, seems to contain at least two mistakes which deserve comment, one concerning the numerical data, the other being of a conceptual kind. The numerical data of the entropy, presented in Fig. 1 of the above mentioned paper, do not only show statistical errors but also systematical deviations from the exact result. Although the authors do not seem to worry about that, this must be interpreted as a...
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ژورنال
عنوان ژورنال: The European Physical Journal B
سال: 1998
ISSN: 1434-6028
DOI: 10.1007/s100510050532