| Item type |
紀要論文 / Departmental Bulletin Paper(1) |
| 公開日 |
2023-03-30 |
| タイトル |
|
|
タイトル |
A Novel Approach of Image Enhancement using Steganographic Data Embedding and JPEG Scheme |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
image communication |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
steganography |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
image enhancement |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
JPEG compression |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
DCT |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
entropy coding |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
departmental bulletin paper |
| 著者 |
古川, 功
鈴木, 純司
Isao, Furukawa
Junji, Suzuki
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
We propose a new image enhancement method for JPEG images on the Internet that a sender who has high resolution images embeds enhancement codes for representing high frequency DCT coefficients into low frequency DCT coefficients, and receivers recover either low resolution JPEG coded images by using conventional JPEG decoder or high resolution images by using code extraction from low frequency DCT coefficients. This image transmission method can be thought as so called steganographic communication in case that these enhancement codes are kept secret. In order to implement the steganographic image communication, after the DCT size is extended from 8×8 to 16 × 16, SNRs are measured for images not only with setting all high frequency coefficients greater than 8×8 size to zeros, then processing IDCT of 16×16 size, but also with processing IDCT of 8×8 size. A scanning method for high frequency DCT coefficients is also proposed. The simulation experiments show the amount of enhancement codes for recovering quantized high frequency DCT coefficients and SNRs without embedding enhancement codes into low frequency DCT coefficients. |
| 書誌情報 |
広島工業大学紀要. 研究編
巻 48,
p. 93-103,
発行日 2014-02
|
| 出版者 |
|
|
出版者 |
広島工業大学 |
| ISSN |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
13469975 |
| 書誌レコードID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA11599110 |
| フォーマット |
|
|
内容記述タイプ |
Other |
|
内容記述 |
application/pdf |
| 著者版フラグ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
research48_093-103.pdf (3.1 MB)
