کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
392475 664772 2016 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Parametric-oriented fitting for local contrast enhancement
ترجمه فارسی عنوان
اتصالات پارامتری گرا برای افزایش کنتراست محلی
کلمات کلیدی
افزایش کیفیت عکس؛ برابری هیستوگرام تطبیقی؛افزایش کنتراست ؛ تصویر انتگرال؛ برابری هیستوگرام پارامتری گرا
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر هوش مصنوعی
چکیده انگلیسی

Local image contrast enhancement methods extract more informative details comparing with the global methods. Yet, the traditional schemes require to access all of the pixels in a local region to obtain the cumulative distribution function (cdf) for further enhancement, i.e., adaptive histogram equalization (AHE), and thus the time complexity drastically increases accordingly when the block size increases. Consequently, some speed-up ingenuities such as block-wise strategy and simple proportionally averaging manner are employed to cope with this issue, yet serious blocking artifact or low contrast issues are accompanied. In this study, a local enhancement method, namely corrected parametric-oriented histogram equalization (CPOHE), is proposed to effectively yield enhanced results with high contrast and artifact-free texture using the concept of integral image, and further correct the accompanied distortion. As documented in the experimental results, the proposed method provides a high practical value for applied in visual perception, biometric, and tracking/detection applications.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Information Sciences - Volumes 370–371, 20 November 2016, Pages 323–342
نویسندگان
, , ,