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Robust Image Watermarking via Perceptual Structural Regularity-based JND Model
2019
KSII Transactions on Internet and Information Systems
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In this model, the CM effect is modeled by analyzing the direction features and texture complexity, which meets the human visual perception characteristics and matches well with the spread transform dither ...
Compared with the other existing JND models, the proposed JND model based on structural regularity is more efficient and applicable in the STDM watermarking scheme. ...
In this experiment, the structural similarity index measurement (SSIM) was employed to weigh the similarity between the original image and the distorted image obtained by injecting noise according to JND ...
doi:10.3837/tiis.2019.02.032
fatcat:5z4g3zzz7bbu3lrg5xkw6krv5u
Evaluation Metrics used in 3D Mesh Watermarking: A Study
2017
International Journal of Security and Its Applications
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One of them is to make sure that the watermark embedding function induces minimal perceptual distortion to the original model and the second situation is assessing the similarity between the extracted ...
watermark and the original one to estimate robustness of the watermarking scheme. ...
The perceptual similarity metrics estimates similarity between surface models based on change in texture and change in structure (shape). ...
doi:10.14257/ijsia.2017.11.11.04
fatcat:tc6gxks2bvc53dxkoleroudjx4
Learning wavelet coefficients for face super-resolution
2020
The Visual Computer
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Modern CNN-based super-resolution produces excellent results in terms of peak signal-to-noise ratio and the structural similarity index (SSIM). ...
Face image super-resolution imaging is an important technology which can be utilized in crime scene investigations and public security. ...
Based on this data set, the authors propose a new perceptual similarity measurement, which performs better than PSNR and SSIM in simulating the underlying perceptual similarity. ...
doi:10.1007/s00371-020-01925-2
fatcat:lqnjva6ttrgk7cxinwcbo5gupi
Currency Recognition using SIFT
2017
International Journal of Computer Applications
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one algorithm that could be used for recognition of all available currencies. ...
Currency Recognition and is implemented to reduce human power to automatically recognize the amount monetary value of currency and without human supervision. ...
The computational measures proposed for each perceptual textural feature were evaluated, based on a psychometric method, by conducting a set of experimentations taking into account human judgments. ...
doi:10.5120/ijca2017914368
fatcat:nrtxro34bnccpolvg3d4ob2o2a
Perceptually Guided Rendering of Textured Point-based Models
[article]
2006
Symposium Point-Based Graphics : [Proceedings]
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This importance map indicates the masking potential of the texture. During runtime, point-based models are simplified and rendered based on this computed importance. ...
In our system high quality textures are mapped to point-based models. Given one texture, an importance map is first computed using the visual masking tool included in the JPEG2000 standard. ...
Acknowledgment: We would like to thank anonymous reviewers for their helpful comments and suggestions, and Amit Shesh for proofreading the paper. ...
doi:10.2312/spbg/spbg06/095-102
fatcat:5vct47xjq5dkbasrprw4fehihi
Guided Dual Networks for Single Image Super-Resolution
2020
IEEE Access
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EEGAN [39] proposes a GAN-based edge-enhancement network that has two subnetworks: a GAN-based ultradense sub-network and a CNN-based edge-enhancement subnetwork. ...
Noteworthily, ESRGAN won the first place in the 2018 PIRM Challenge on Perceptual Image Super-Resolution [37] , which 150 evaluates the image perceptual quality using the perceptual index (PI). ...
doi:10.1109/access.2020.2995175
fatcat:ziu2bxhiijarbgkak675nuav4u
Digital Circlism: Algorithm for Generation of Artistic Images by Human Computer Interface
2020
Research in Computing Science
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Algorithmic programming is being used recently to generate visual effects templates in place of existing platforms like ADOBE or COREL Painter used to simulate textures and visual transformation on two-higher ...
Starting from the filled in segments of primitive petroglyphs, Roman mosaics, to the pointillism of Seurat and the cubists, texture has been central to the artistic discourse. ...
In principle, it secures effects similar to those evoked by nineteenth century impressionists who used brushstrokes to articulate objects and perspectives. ...
dblp:journals/rcs/MukhopadhyayRG20
fatcat:q6m3pbf5vfezxmnapqpe4xmwpu
Perceptually Guided Polygon Reduction
2008
IEEE Transactions on Visualization and Computer Graphics
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The first one is based on the Sarnoff visual discrimination metric, and the second one is inspired by the visual masking tool available in the current JPEG2000 standard. ...
The preprocessing step computes an importance map that indicates the visual masking potential of the visual patterns on the surface. ...
They also want to thank Michael Garland for making his QSlim software available, and Cyberware and Stanford Graphics Lab for making the Igea and Bunny models available. ...
doi:10.1109/tvcg.2008.51
pmid:18599914
fatcat:ehnbhlpahnbcfnu5hoozjlhhxa
Edge Profile Super Resolution
2021
IEEE Access
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Each mFRN is composed of many residual edge profile blocks (REPBs) that extract features and preserve the edge, structure, and texture information of the image. ...
Experimental results show that EPSR achieves competitive performance against state-of-the-art methods in terms of the peak signal-to-noise ratio(PSNR) and structural similarity index measure(SSIM) evaluation ...
In contrast, EPSR based on ECA feature extraction reconstructs the edge and texture successfully. ...
doi:10.1109/access.2021.3108998
fatcat:6hdxhj2du5cl5oerg56q5fikku
A survey of perceptual image processing methods
2013
Signal processing. Image communication
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This paper presents an overview of perceptual based approaches for image enhancement, segmentation and coding. ...
Perceptual approaches have been widely used in many areas of visual information processing. ...
For instance, security applications may need to have specic ROI-based coding, intra and inter super-resolution stage and metrics to characterizing the Detection, Recognition, Identication (DRI) indexes ...
doi:10.1016/j.image.2013.06.003
fatcat:maiih2fhvjdb3aq6lkb23ltfiy
Image Retrieval Techniques based on Image Features, A State of Art approach for CBIR
[article]
2010
arXiv
pre-print
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The purpose of this Paper is to describe our research on different feature extraction and matching techniques in designing a Content Based Image Retrieval (CBIR) system. ...
Firstly, this paper outlines a description of the primitive feature extraction techniques like, texture, colour, and shape. ...
This method considers the cross-correlation between histogram bins based on the perceptual similarity of the colours represented by the bins. ...
arXiv:1002.1951v1
fatcat:axafgqkrvvholoahmwzxvpejr4
Adaptive Digital Watermarking Integrating Fuzzy Inference Hvs Perceptual Model
2012
Zenodo
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In the proposed model, a multi-variable fuzzy based architecture has been designed to produce a perceptual membership degree for both candidate embedding sub-regions and strength watermark embedding factor ...
The model depends on the human visual characteristics of image sub-regions in the frequency multi-resolution wavelet domain. ...
The visual characteristics of each block have been extracted, including texture, brightness and edges. ...
doi:10.5281/zenodo.1080889
fatcat:law67ocbcvd6rgtl35dna3nyui
An Adaptive Multi-Layer Block Data-Hiding Algorithm that uses Edge Areas of Gray-Scale Images
2015
International Journal of Security and Its Applications
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The results show that the new scheme significantly overcomes the previous edge-based approaches and least significant bit (LSB) based methods in term of security and visual quality. ...
Embedding data into smooth regions introduces stego-images with poor security and visual quality. ...
Acknowledgement We would like to express the deepest sincere gratitude to Khon Kaen University, Faculty of Science, Department of Computer Science for their support and assistance. ...
doi:10.14257/ijsia.2015.9.6.27
fatcat:tsvvfye3jngqtnlytlfpgh7kw4
Special Section Guest Editorial: Perceptually Driven Visual Information Analysis
2017
Journal of Electronic Imaging (JEI)
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His research interests include medical image processing, historical studies, image forensics, content-based image indexing, local and nonmetric similarities, and perceptual similarities. ...
In particular, gender and ethnicity are identified from face images based on features (shape and texture) extracted with LBP, Gabor filter, histogram of oriented gradients descriptor, and SIFT. ...
doi:10.1117/1.jei.25.6.061601
fatcat:aaucgfu7hvg6rms6rgjg2ovg4q
Perceptual saccadic suppression starts in the retina
2020
Nature Communications
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Our results demonstrate a far-reaching contribution of visual processing mechanisms to perceptual saccadic suppression, starting in the retina, without the need to invoke explicit motor-based suppression ...
Visual sensitivity, probed through perceptual detectability of very brief visual stimuli, is strongly impaired around the time of rapid eye movements. ...
Acknowledgements Andreas Hierlemann provided the HiDens CMOS MEA system and helped establish our high-density MEA recordings. ...
doi:10.1038/s41467-020-15890-w
pmid:32332756
fatcat:rjyaawmgrnhqra3fanqebinnke
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