This paper presents a watermark embedding and extraction technique using DWT-DCT
framework. In digital image watermarking, one of the major challenge is to provide adequate …

This work presents a robust digital image watermarking scheme to protect digital images
from illegal usage and manipulations. The excellent re-constructional attributes of integer …

Sensitive data including medical images and electronic patient records (EPR) have potential
value in the era of big data and telemedicine applications. Distribution of medical images …

Pentingnya menjaga keutuhan maupun keamanan data merupakan salah satu tantangan
dalam era digital saat ini. Salah satu cara yang dapat digunakan menghadapi tantangan ini …

Image encryption is an important area in visual cryptography that helps in protecting images
when shared through internet. There is lot of cryptography algorithms applied for many years …

The development of an increasingly sophisticated internet allows for the distribution of digital
images that can be done easily. However, with the development of increasingly …

Data security is one of the critical things that must be considered along with the ease of the
data distribution process in Era Society 5.0. Maintaining data security is not an easy thing to …

The security of storing and sending files and digital messages needs to be improved along
with technological developments. Encryption using cryptography is a solution that is widely …

A good watermarking method should be robust against attacks but have good visual quality.
This research proposes a combination of two transformations ie Tchebichef and singular …

The achievement of visual aspects and image security often cannot meet visibility standards,
for example the acquisition of PSNR and UACI NPCR values. To increase security, this …