An Improved Image Steganography Algorithm Based on PVD

This paper presents several techniques used in digital steganography in term of spatial and transform domain. Additionally, it analyses the performance and the metric evaluation of the techniques used in digital steganography based on spatial and transform domain. This paper aims to identify the main mediums of digital steganography, which are image-based, video-based and audio-based, in order to recognize the various techniques used with them. As a result, the primary technique used in the digital medium was LSB technique in the spatial domain, while in the transform domain, the main technique used was differentiated between DTC and DWT. Meanwhile, the common domain utilized in digital steganography was the spatial domain due to its simplicity and high embedding capacity. The future efforts for this paper will be considering the feature based in text steganography.

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“…Decreasing in processing time and increasing in security. PVD Improving in image quality in coloured and grey-scale images [18][19][20][21].…”

Section: Video-basedmentioning

confidence: 99%

Analysis review on spatial and transform domain technique in digital steganography

2020

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“…If CAPTCHA codes are embedded directly using LSB [1] embedding technique then it is easy for the attackers to extract the CAPTCHA. So, a new technique has been implemented to change the actual CAPTCHA into an encrypted version and then that encrypted version has been embedded into cover image [2] resulting in a stego image [3].…”

Section: The Problemmentioning

confidence: 99%

A new encrypted method in image steganography

Pramanik

Singh²,

Ghosh

2019

IJEECS

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Steganography is data hiding technique in internet. Here we send CAPTCHA codes within a cover image using Image steganography. CAPTCHA are the crazy codes. They are used in human response test. The word is actually an acronym for: "Completely Automated Public Turing test to tell Computers and Humans Apart". It is a type of challenge–response test used in computing to determine whether or not the user is a human. Websites implement CAPTCHA codes into their registration processes due to spam. This is the utility of CAPTCHA codes. Here we generate CAPTCHA codes and later send them in an encrypted version. So, actually CAPTCHA codes are embedded into cover image with an encrypted form resulting stego image and thus attackers cannot fetch the actual CAPTCHA resulting in a secured transmission of confidential data using image steganography.

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“…Step 3: consider each four secret bits and apply the XOR logical operator as shown in (1). Here, ,1 is the output of the first XOR-ing that is applied between the first secret bit and the first selected sample binary digit where is an index that represents the number of the used samples.…”

Section: The Procedures Of Embeddingmentioning

confidence: 99%

“…Digital communication has become so significant for many organizations. It supports even daily life activities and communications [1,2]. For instance, we transfer medical images, digital audios, music, videos, digital books, etc.…”

Section: Introductionmentioning

confidence: 99%

Developing audio data hiding scheme using random sample bits with logical operators

Al-Hooti¹,

Ahmad²,

Djanali³

2019

IJEECS

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Sharp development progress of information technology has affected many aspects including data security. This is because classified data are often transferred between systems. In this case, data hiding exists to protect such data. Some methods which have been proposed, however, are not yet optimal concerning the amount of the secret and the quality of the resulted stego data. In this paper, we explore an audio file as the medium to carry the secret data which has been extracted into binary. Before the process begins, the cover is converted to binary and each sample’s bits are divided into two groups, one is used as the location of the embedded 4 bits whereas the second part locates the two bits that are randomly selected as the key. The experimental results have validated that the capacity is high and there is no much impact on the quality. Moreover, compared to the current LSB methods the security is exceedingly enhanced.

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An Improved Image Steganography Algorithm Based on PVD

Cited by 12 publications

References 9 publications

Analysis review on spatial and transform domain technique in digital steganography

Analysis review on spatial and transform domain technique in digital steganography

A new encrypted method in image steganography

Developing audio data hiding scheme using random sample bits with logical operators

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