Color Image Steganography Based on Discrete Wavelet and Discrete Cosine Transforms
The secure data transmission over internet is achieved using Steganography. It is the art and science of concealing information in unremarkable cover media so as not to arouse an observer’s suspicion. In this paper the color cover image is divided into equally four parts, for each part se...
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| Format: | Article |
| Language: | English |
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University of Baghdad
2017-05-01
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| Series: | Ibn Al-Haitham Journal for Pure and Applied Sciences |
| Subjects: | |
| Online Access: | https://jih.uobaghdad.edu.iq/index.php/j/article/view/740 |
| _version_ | 1817982363924168704 |
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| author | A. A. Abdul Latef |
| author_facet | A. A. Abdul Latef |
| author_sort | A. A. Abdul Latef |
| collection | DOAJ |
| description |
The secure data transmission over internet is achieved using Steganography. It is the art and science of concealing information in unremarkable cover media so as not to arouse an observer’s suspicion. In this paper the color cover image is divided into equally four parts, for each part select one channel from each part( Red, or Green, or Blue), choosing one of these channel depending on the high color ratio in that part. The chosen part is decomposing into four parts {LL, HL, LH, HH} by using discrete wavelet transform. The hiding image is divided into four part n*n then apply DCT on each part. Finally the four DCT coefficient parts embedding in four high frequency sub-bands {HH} in cover image. Experiments show that this method gets stego image with perceptual invisibility, and better secrecy. The proposed method was implemented using MATLAB 7.8.
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| first_indexed | 2024-04-13T23:20:09Z |
| format | Article |
| id | doaj.art-ed2a732109304751b585029766ad02f4 |
| institution | Directory Open Access Journal |
| issn | 1609-4042 2521-3407 |
| language | English |
| last_indexed | 2024-04-13T23:20:09Z |
| publishDate | 2017-05-01 |
| publisher | University of Baghdad |
| record_format | Article |
| series | Ibn Al-Haitham Journal for Pure and Applied Sciences |
| spelling | doaj.art-ed2a732109304751b585029766ad02f42022-12-22T02:25:16ZengUniversity of BaghdadIbn Al-Haitham Journal for Pure and Applied Sciences1609-40422521-34072017-05-01243Color Image Steganography Based on Discrete Wavelet and Discrete Cosine TransformsA. A. Abdul Latef The secure data transmission over internet is achieved using Steganography. It is the art and science of concealing information in unremarkable cover media so as not to arouse an observer’s suspicion. In this paper the color cover image is divided into equally four parts, for each part select one channel from each part( Red, or Green, or Blue), choosing one of these channel depending on the high color ratio in that part. The chosen part is decomposing into four parts {LL, HL, LH, HH} by using discrete wavelet transform. The hiding image is divided into four part n*n then apply DCT on each part. Finally the four DCT coefficient parts embedding in four high frequency sub-bands {HH} in cover image. Experiments show that this method gets stego image with perceptual invisibility, and better secrecy. The proposed method was implemented using MATLAB 7.8. https://jih.uobaghdad.edu.iq/index.php/j/article/view/740Steganography, Digital Watermark, Wavelet Transform, DCT. |
| spellingShingle | A. A. Abdul Latef Color Image Steganography Based on Discrete Wavelet and Discrete Cosine Transforms Ibn Al-Haitham Journal for Pure and Applied Sciences Steganography, Digital Watermark, Wavelet Transform, DCT. |
| title | Color Image Steganography Based on Discrete Wavelet and Discrete Cosine Transforms |
| title_full | Color Image Steganography Based on Discrete Wavelet and Discrete Cosine Transforms |
| title_fullStr | Color Image Steganography Based on Discrete Wavelet and Discrete Cosine Transforms |
| title_full_unstemmed | Color Image Steganography Based on Discrete Wavelet and Discrete Cosine Transforms |
| title_short | Color Image Steganography Based on Discrete Wavelet and Discrete Cosine Transforms |
| title_sort | color image steganography based on discrete wavelet and discrete cosine transforms |
| topic | Steganography, Digital Watermark, Wavelet Transform, DCT. |
| url | https://jih.uobaghdad.edu.iq/index.php/j/article/view/740 |
| work_keys_str_mv | AT aaabdullatef colorimagesteganographybasedondiscretewaveletanddiscretecosinetransforms |