Results 51 to 60 of about 11,458,060 (241)

Image Blur Forgery Detection Based on Color Consistency [PDF]

open access: yesJisuanji gongcheng, 2016
This paper analyzes the local color correlation and the influence of blur forgery operation on image color consistency,and proposes a new method based on the improvement of the color features to detect the blur tamper of digital image.By redefining the ...
ZHOU Zhiping,HU Chengyan,HUANG Hao
doaj   +1 more source

The risk of the forgery of signatures and the problem of the conflicting entitlements in the law of negotiable instruments: a comparative study [PDF]

open access: yes, 1990
The concern of this thesis is to examine the risk of forgery of signatures In the context of negotiable Instruments. The allocation of the said risk is submitted to represent one of the most controversial matters among the existing legal ...
Alsulaimi, Zaki
core  

A review on copy-move image forgery detection techniques [PDF]

open access: yes, 2021
With billions of digital images flooding the internet which are widely used and regards as the major information source in many fields in recent years. With the high advance of technology, it may seem easy to fraud the image. In digital images, copy-move
Khudhair, Z. N.   +2 more
core   +1 more source

Unlocking Terahertz Steganography: Authentication of Hidden Images in Flexible Media

open access: yesAdvanced Materials Technologies, EarlyView.
Hidden information in multilayered devices, such as steganographic portraits, is detected and authenticated using reflection‐mode terahertz time‐domain imaging. Image reconstruction relies on a dedicated figure‐of‐merit obtained by integrating the signal intensity over the time‐window associated with the reflection from the metallic mirror backing the ...
Tiziana Ritacco   +4 more
wiley   +1 more source

CNN-Keypoint Based Two-Stage Hybrid Approach for Copy-Move Forgery Detection

open access: yesIEEE Access
Authenticating digital images poses a significant challenge due to the widespread use of image forgery techniques, including copy-move forgery. Copy-move forgery involves copying and pasting portions of an image within the same image while applying ...
Anjali Diwan, Anil K. Roy
doaj   +1 more source

Region Duplication Forgery Detection Technique Based on SURF and HAC

open access: yesThe Scientific World Journal, 2013
Region duplication forgery detection is a special type of forgery detection approach and widely used research topic under digital image forensics. In copy move forgery, a specific area is copied and then pasted into any other region of the image.
Parul Mishra   +3 more
doaj   +1 more source

Optimization of a Pre-Trained AlexNet Model for Detecting and Localizing Image Forgeries

open access: yesInformation, 2020
With the advance of many image manipulation tools, carrying out image forgery and concealing the forgery is becoming easier. In this paper, the convolution neural network (CNN) innovation for image forgery detection and localization is discussed. A novel
Soad Samir   +3 more
doaj   +1 more source

Dynamic Fluorescence Modulation via Light‐Driven Competitive Protonation

open access: yesAdvanced Optical Materials, EarlyView.
A two‐component molecular system demonstrates reversible, light‐driven fluorescence write–erase cycling and thermal imaging. Illumination of a merocyanine photoacid transfers a proton to a highly efficient fluorescent pyridinium dye, switching its emission color; thermal relaxation reverses the process in the dark.
Serena X. Liu   +10 more
wiley   +1 more source

Geometry‐Driven Whispering‐Gallery Modes in Self‐Assembled Phosphorescent Organic Microtubes

open access: yesAdvanced Optical Materials, EarlyView.
Micelles encapsulating tris(2‐phenylpyridine)iridium(III) self‐assemble into a hollow hexagonal microtube stabilized by a surface passivation layer. The hexagonal cross‐section confines circulating light along its facets, sustaining sharp whispering‐gallery resonances that guide photoluminescence emission under laser excitation.
Do Wan Kim   +10 more
wiley   +1 more source

Image Forgery Detection with Machine Learning [PDF]

open access: yes, 2020
The issue of forged images is currently a global issue that spreads mainly via social networks. Image forgery has weakened Internet users’ confidence in digital images.
Alzamil, Lubna
core   +1 more source

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