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A Thorough Investigation on Image Forgery Detection

Computer Modeling in Engineering & Sciences 2023年第3期134卷 1489-1528页

作者： Anjani Kumar Rai subodh srivastava Department of Electronics&Communication Engineering NITPatnaIndia

Image forging is the alteration of a digital image to conceal some of the necessary or helpful *** cannot be easy to distinguish themodified region fromthe original image in *** demand for authenticity and the integrity of the image drive the detection of a fabricated *** have been cases of ownership infringements or fraudulent actions by counterfeiting multimedia files,including re-sampling or *** work presents a high-level view of the forensics of digital images and their possible detection *** work presents a thorough analysis of digital image forgery detection techniques with their steps and *** methods have identified forgery and its type and compared it with state of the *** work will help us to find the best forgery detection technique based on the different *** also shows the current issues in other methods,which can help researchers find future scope for further research in this field.

关键词： Forgery detection digital forgery image forgery localization image segmentation image forensics multimedia security

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One-Pot Green Synthesis of 1, 4-Dihydropyridine Derivatives Using Polyindole TiO2 Nanocatalyst by Solvent Free Method

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Open Journal of Composite Materials 2024年第3期14卷 109-123页

作者： Deepak Babasaheb Phasage Sanjay K. Sharma Balram Tripathi Sonia Chahar srivastava Department of Chemistry JECRC University Jaipur India S. S. Jain subodh PG College Jaipur India

This study used a Polyindole in combination with TiO2 nanocatalyst as an efficient heterogeneous catalyst to carry out a multi-component Hantzsch reaction involving different aromatic aldehydes with methyl acetoacetate, and aqueous ammonium to create 1,4-dihydropyridine derivatives under solvent free condition at ambient temperature. A broad range of aldehydes and methyl acetoacetates, ranging from heteroaromatic to polyaromatic one, with high level of functional group tolerance can be used to provide the desired products possessing relevant medicinal moiety in high yields. This technology has prospective advantages over current protocols, including the utilization of a cheap, stable, recyclable, and safe catalyst, quicker reaction times with higher yields and simple product isolation.

关键词： TiO2 Nanocatalyst Green Synthesis Surface Morphology

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