Abstract
In this modern age, data can be easily transferred within networks. This condition has brought the data vulnerable; so they need protection at all times. To minimize this threat, data hiding appears as one of the potential methods to secure data. This protection is done by embedding the secret into various types of data, such as an image. In this case, histogram shifting has been proposed; however, the amount of secret and the respective stego image are still challenging. In this research, we offer a method to improve its performance by performing some steps, for example removing the shifting process and employing multilayer embedding. Here, the embedding is done directly to the peak of the histogram which has been generated by the cover. The experimental results show that this proposed method has a better quality of stego image than existing ones. So, it can be one of possible solutions to protect sensitive data.
Highlights
The use of digital media such as video, image, and audio plays a vital role in communication and data transmission on the internet
In contrast to that algorithm, where secret data are embedded in empty spaces, we embed them in the peak, without shifting pixel values
We test the amount of data which can be embedded in the original image for both our and the compared methods whose results are provided in Tables 1, 2 and 3
Summary
The use of digital media such as video, image, and audio plays a vital role in communication and data transmission on the internet. This rapid development results in various problems, such as insecurity of the transmitted data. One of them is cryptography that the protection is done by converting the data into an unrecognizable form. The implementation of this method can be found in [1, 2]. Another method to secure data is steganography or data hiding. Data hiding can be applied to various media, one of which is an image
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