Presentation 2020-01-27
iPhone application development to embed URL at taking screenshots
Kenta Nango, Masaki Kawamura,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We are developing an iPhone application which can embed a URL into a screenshot image of a web page by using digital watermarking techniques at taking screenshot. A lot of screenshots are taken on mobile devices as memos of some web pages. However, one cannot get the URLs of the web pages from the usual screenshot images. Those who want to see the web page have to search it again. In this work, we developed an iPhone application which can store the URL in a screenshot image at taking screenshot and then can retrieve the URL from the screenshot image. Each alphabet of URL is converted into a binary watermark. By using our application, one can easily see the web page from the screenshot image again. We examined that our application functioned correctly. Moreover, we evaluated the quality of screenshotimages and the bit error rate (BER) of watermarks. As a result, the BER was almost constant. Although the image quality became worse as the length of URL was larger, all PSNRs were over 40 dB. Therefore, our application could make good quality screenshot images.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) iPhone Application / screenshot / digital watermark / URL
Paper # EMM2019-97
Date of Issue 2020-01-20 (EMM)

Conference Information
Committee EMM
Conference Date 2020/1/27(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Tohoku Univ.
Topics (in Japanese) (See Japanese page)
Topics (in English) Sense of Presence, Universal Media, Digital Entertainment, etc.
Chair Masaki Kawamura(Yamaguchi Univ.)
Vice Chair Motoi Iwata(Osaka Prefecture Univ.) / Tetsuya Kojima(NIT,Tokyo College)
Secretary Motoi Iwata(NIT, Nagano College) / Tetsuya Kojima(Nagase)
Assistant Masaki Inamura(Tokyo Denki Univ.) / Kazuhiro Kono(Kansai Univ.)

Paper Information
Registration To Technical Committee on Enriched MultiMedia
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) iPhone application development to embed URL at taking screenshots
Sub Title (in English)
Keyword(1) iPhone Application
Keyword(2) screenshot
Keyword(3) digital watermark
Keyword(4) URL
1st Author's Name Kenta Nango
1st Author's Affiliation Yamaguchi University(Yamaguchi Univ.)
2nd Author's Name Masaki Kawamura
2nd Author's Affiliation Yamaguchi University(Yamaguchi Univ.)
Date 2020-01-27
Paper # EMM2019-97
Volume (vol) vol.119
Number (no) EMM-396
Page pp.pp.17-21(EMM),
#Pages 5
Date of Issue 2020-01-20 (EMM)