کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
523402 868346 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Exposing image forgery by detecting traces of feather operation
ترجمه فارسی عنوان
جعل تصویر را با تشخیص آثار عملیات قلم مواجه می کند؟
کلمات کلیدی
تصویر خراب جعل تصویر عملیات پر، تشخیص هویت
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
چکیده انگلیسی


• A blind technique of detecting traces of feather operation image forgeries.
• Modeling influence of feather operation by gradient phase angle and radius.
• An approach to expose image forgeries region by traces of feather operation.
• The degree of credibility is defined to evaluate the reality of one image.

Powerful digital image editing tools make it very easy to produce a perfect image forgery. The feather operation is necessary when tampering an image by copy–paste operation because it can help the boundary of pasted object to blend smoothly and unobtrusively with its surroundings. We propose a blind technique capable of detecting traces of feather operation to expose image forgeries. We model the feather operation, and the pixels of feather region will present similarity in their gradient phase angle and feather radius. An effectual scheme is designed to estimate each feather region pixel׳s gradient phase angle and feather radius, and the pixel׳s similarity to its neighbor pixels is defined and used to distinguish the feathered pixels from un-feathered pixels. The degree of image credibility is defined, and it is more acceptable to evaluate the reality of one image than just using a decision of YES or NO. Results of experiments on several forgeries demonstrate the effectiveness of the technique.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Visual Languages & Computing - Volume 27, April 2015, Pages 9–18
نویسندگان
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