An improved Quad and RDE-based medical data hiding method

Ahmad, Tohari; Holil, Muhammad; Wibisono, Waskitho; Muslim, Istianah

doi:10.1109/cyberneticscom.2013.6865798

Cited by 27 publications

(22 citation statements)

References 8 publications

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“…Once the value has been obtained, the original pixel is recovered using the same expression in [8]. (16) In [17], an improved quad and Reduced Difference Expansion (RDE) data hiding algorithm was presented. In this method, the quality of stego image has increased due to further reduction of difference between adjacent pixels.…”

Section: Methodsmentioning

confidence: 99%

“…In addition, high payload capacity is maintained. Different from integer transform scheme in [12] and [18], the first difference was proposed to be 0 and the integer transform function was performed using Equation (17).…”

Section: Methodsmentioning

confidence: 99%

“…In this paper, to improve the quality of stego image we proposed a new data hiding approach based on the previous methods, especially that of Ahmad et al [17]. A new base point is defined and a reduced difference formula is proposed.…”

Section: Improving the Quality Of Stego Imagementioning

confidence: 99%

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Protecting Data by Improving Quality of Stego Image based on Enhanced Reduced difference Expansion

Ntahobari

Ahmad²

2018

IJECE

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In this era of internet development, security of information sharing is the main problem faced by human being. Data hiding technique is one of the solutions. However, hiding credential information within a multimedia file such as image reduces its visual quality. Therefore, unauthorized users may suspect the existance of secret data within that image. In the past years, various data hiding algorithms have been developed by researchers to overcome the problem of high distortion of image after data embedding process. Achieving a high quality stego image, however, is still a challenging problem. In this paper, we proposed a new data hiding algorithm based on different expansion. It aims to enhance the quality of stego image for a given payload size. The new algorithm is evaluated on various medical images. Thereafter, the experimental results show that the visual quality is improved; and increasing the embedding capacity leads to more noises. Therefore, a better choice of base point and a reduced difference expansion affect the quality of stego image.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Protecting Data by Improving Quality of Stego Image based on Enhanced Reduced difference Expansion

Ntahobari

Ahmad²

2018

IJECE

Self Cite

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“…Proses ini menggunakan (15) yang disitasi dari [9]. Nilai piksel baru didapatkan dengan menambahkan nilai selisih yang telah diberi bit data rahasia dengan nilai piksel prediksi pada blok tersebut seperti pada (17).…”

Section: B Metode Penyisipanunclassified

“…Proses evaluasi kualitas citra digital dalam data hiding di makalah ini menggunakan metode objektif, seperti halnya pada [5] dan [9]. Yaitu, evaluasi dilakukan dengan menghitung aspek-aspek fisik dari citra yang dihasilkan tanpa dipengaruhi oleh perspektif pengguna.…”

Section: Hasil Dan Pembahasanunclassified