Gökçay, Erhan

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https://hdl.handle.net/20.500.14411/7011
Name Variants
Gokcay, E
E.,Gökçay
Gökçay,E.
E., Gökçay
G.,Erhan
Gokcay E.
Goekcay, Erhan
Gokcay, Erhan
Erhan, Gokcay
Gökçay, Erhan
E., Gokcay
GOKCAY, E
Erhan, Gökçay
Gokcay,E.
Gökçay E.
G., Erhan
E.,Gokcay
Job Title
Doktor Öğretim Üyesi
Email Address
erhan.gokcay@atilim.edu.tr
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Software Engineering
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ORCID ID
0000-0002-4220-199X
Scopus Author ID
7004217859
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JOK-0734-2023

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2017 IEEE 1st Ukraine Conference on Electrical and Computer Engineering, UKRCON 2017 - Proceedings -- 1st IEEE Ukraine Conference on Electrical and Computer Engineering, UKRCON 2017 -- 29 May 2017 through 2 June 2017 -- Kyiv -- 1317631
24th IEEE International Conference on Electronics, Circuits and Systems (ICECS) -- DEC 05-08, 2017 -- Batumi, GEORGIA1
7th International Conference on Cloud Computing and Services Science (CLOSER) -- APR 24-26, 2017 -- Porto, PORTUGAL1
8th International Conference on Cloud Computing and Services Science (CLOSER) -- MAR 19-21, 2018 -- Funchal, PORTUGAL1
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Subject: discrete cosine transformation-DCT

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Now showing 1 - 2 of 2
  • Thumbnail Image
    Conference Object
    Effect of Secret Image Transformation on the Steganography Process
    (Ieee, 2017) Buker, Mohamed; Tora, Hakan; Gokcay, Erhan
    Steganography is the art of hiding information in something else. It is favorable over encryption because encryption only hides the meaning of the information; whereas steganography hides the existence of the information. The existence of a hidden image decreases Peak Signal to Noise Ratio (PSNR) and increases Mean Square Error (MSE) values of the stego image. We propose an approach to improve PSNR and MSE values in stego images. In this method a transformation is applied to the secret image, concealed within another image, before embedding into the cover image. The effect of the transformation is tested with Least Significant Bit (LSB) insertion and Discrete Cosine Transformation (DCT) techniques. MSE and PSNR are calculated for both techniques with and without transformation. Results show a better MSE and PSNR values when a transformation is applied for LSB technique but no significant difference was shown in DCT technique.
  • Thumbnail Image
    Conference Object
    Citation - Scopus: 1
    Effect of Secret Image Transformation on the Steganography Process
    (Institute of Electrical and Electronics Engineers Inc., 2017) Buke,M.; Tora,H.; Gokcay,E.
    Steganography is the art of hiding information in something else. It is favorable over encryption because encryption only hides the meaning of the information; whereas steganography hides the existence of the information. The existence of a hidden image decreases Peak Signal to Noise Ratio (PSNR) and increases Mean Square Error (MSE) values of the stego image. We propose an approach to improve PSNR and MSE values in stego images. In this method a transformation is applied to the secret image, concealed within another image, before embedding into the cover image. The effect of the transformation is tested with Least Significant Bit (LSB) insertion and Discrete Cosine Transformation (DCT) techniques. MSE and PSNR are calculated for both techniques with and without transformation. Results show a better MSE and PSNR values when a transformation is applied for LSB technique but no significant difference was shown in DCT technique. © 2017 IEEE.