A New Pixels Flipping Method for Huge Watermarking Capacity of the Invoice Font Image
Invoice printing just has two-color printing, so invoice font image can be seen as binary image. To embed watermarks into invoice image, the pixels need to be flipped. The more huge the watermark is, the more the pixels need to be flipped. We proposed a new pixels flipping method in invoice image fo...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/895063 |
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| author | Li Li Qingzheng Hou Jianfeng Lu Qishuai Xu Junping Dai Xiaoyang Mao Chin-Chen Chang |
| author_facet | Li Li Qingzheng Hou Jianfeng Lu Qishuai Xu Junping Dai Xiaoyang Mao Chin-Chen Chang |
| author_sort | Li Li |
| collection | DOAJ |
| description | Invoice printing just has two-color printing, so invoice font image can be seen as binary image. To embed watermarks into invoice image, the pixels need to be flipped. The more huge the watermark is, the more the pixels need to be flipped. We proposed a new pixels flipping method in invoice image for huge watermarking capacity. The pixels flipping method includes one novel interpolation method for binary image, one flippable pixels evaluation mechanism, and one denoising method based on gravity center and chaos degree. The proposed interpolation method ensures that the invoice image keeps features well after scaling. The flippable pixels evaluation mechanism ensures that the pixels keep better connectivity and smoothness and the pattern has highest structural similarity after flipping. The proposed denoising method makes invoice font image smoother and fiter for human vision. Experiments show that the proposed flipping method not only keeps the invoice font structure well but also improves watermarking capacity. |
| format | Article |
| id | doaj-art-126b32a21be245888c5fc5fce068a21f |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-126b32a21be245888c5fc5fce068a21f2025-02-03T01:11:11ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/895063895063A New Pixels Flipping Method for Huge Watermarking Capacity of the Invoice Font ImageLi Li0Qingzheng Hou1Jianfeng Lu2Qishuai Xu3Junping Dai4Xiaoyang Mao5Chin-Chen Chang6Institute of Graphics and Image, Hangzhou Dianzi University, Hangzhou, Zhejiang 310018, ChinaInstitute of Graphics and Image, Hangzhou Dianzi University, Hangzhou, Zhejiang 310018, ChinaInstitute of Graphics and Image, Hangzhou Dianzi University, Hangzhou, Zhejiang 310018, ChinaInstitute of Graphics and Image, Hangzhou Dianzi University, Hangzhou, Zhejiang 310018, ChinaInstitute of Digital Media, Hangzhou Dianzi University, Hangzhou, Zhejiang 310018, ChinaUniversity of Yamanashi, Yamanashi-ken 409-3866, JapanDepartment of Information Engineering and Computer Science, Feng Chia University, Taichung 40724, TaiwanInvoice printing just has two-color printing, so invoice font image can be seen as binary image. To embed watermarks into invoice image, the pixels need to be flipped. The more huge the watermark is, the more the pixels need to be flipped. We proposed a new pixels flipping method in invoice image for huge watermarking capacity. The pixels flipping method includes one novel interpolation method for binary image, one flippable pixels evaluation mechanism, and one denoising method based on gravity center and chaos degree. The proposed interpolation method ensures that the invoice image keeps features well after scaling. The flippable pixels evaluation mechanism ensures that the pixels keep better connectivity and smoothness and the pattern has highest structural similarity after flipping. The proposed denoising method makes invoice font image smoother and fiter for human vision. Experiments show that the proposed flipping method not only keeps the invoice font structure well but also improves watermarking capacity.http://dx.doi.org/10.1155/2014/895063 |
| spellingShingle | Li Li Qingzheng Hou Jianfeng Lu Qishuai Xu Junping Dai Xiaoyang Mao Chin-Chen Chang A New Pixels Flipping Method for Huge Watermarking Capacity of the Invoice Font Image The Scientific World Journal |
| title | A New Pixels Flipping Method for Huge Watermarking Capacity of the Invoice Font Image |
| title_full | A New Pixels Flipping Method for Huge Watermarking Capacity of the Invoice Font Image |
| title_fullStr | A New Pixels Flipping Method for Huge Watermarking Capacity of the Invoice Font Image |
| title_full_unstemmed | A New Pixels Flipping Method for Huge Watermarking Capacity of the Invoice Font Image |
| title_short | A New Pixels Flipping Method for Huge Watermarking Capacity of the Invoice Font Image |
| title_sort | new pixels flipping method for huge watermarking capacity of the invoice font image |
| url | http://dx.doi.org/10.1155/2014/895063 |
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