Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
IEICE Technical Committee Submission System
Conference Paper's Information		 Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2023-03-02 14:30
[Poster Presentation] Development of a screenshot application that can redisplay web pages by building on the Swift standard library
Ayaka Sakamoto, Masaki Kawamura (Yamaguchi Univ.) EMM2022-81
Abstract (in Japanese) (See Japanese page) 
(in English) We are developing an application to generate a redisplayable screenshot image of a web page. This application gets the URL of the web page when the screenshot is taken, and converts it to a QR code. The code is then embedded in the screenshot image as a watermark. Reversely, the web page can be redisplayed by extracting the URL from the screenshot image. In recent years, many applications using external libraries have been rejected by the AppStore.
Therefore, the purpose of this study is to develop the application using only the Swift standard library. The function to encode a URL into a QR code, the QIM function to embed a watermark into an image, and the function to perform a two-dimensional DCT on an image were newly implemented using the standard libraries. QR codes were generated by assigning a URL and an error correction level to QRCodeGenerator in the library. Two-dimensional DCT was achieved by performing DCT twice, horizontally and vertically, using the one-dimensional DCT function vDSP.DCT in the library. The application written by Swift was tested on a simulator. URLs were embedded in both screenshot and natural images to check the developed functions. As a result, the QR codes extracted from the screenshot images were incorrectly decoded. However, the QR codes extracted from the natural images were successfully decoded. Therefore, the application has worked properly. The reason for the decoding failure was considered to be the luminance distribution of the image.
Keyword (in Japanese) (See Japanese page) 
(in English) Watermark / QRcode / Swift / iPhone Application / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 412, EMM2022-81, pp. 72-77, March 2023.
Paper # EMM2022-81 
Date of Issue 2023-02-23 (EMM) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF EMM2022-81

Conference Information
Committee EMM  
Conference Date 2023-03-02 - 2023-03-03 
Place (in Japanese) (See Japanese page) 
Place (in English) Fukue culture hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMM 
Conference Code 2023-03-EMM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Development of a screenshot application that can redisplay web pages by building on the Swift standard library 
Sub Title (in English)  
Keyword(1) Watermark  
Keyword(2) QRcode  
Keyword(3) Swift  
Keyword(4) iPhone Application  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Ayaka Sakamoto  
1st Author's Affiliation Yamaguchi University (Yamaguchi Univ.)
2nd Author's Name Masaki Kawamura  
2nd Author's Affiliation Yamaguchi University (Yamaguchi Univ.)
3rd Author's Name  
3rd Author's Affiliation ()
4th Author's Name  
4th Author's Affiliation ()
5th Author's Name  
5th Author's Affiliation ()
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2023-03-02 14:30:00 
Presentation Time 75 minutes 
Registration for EMM 
Paper # EMM2022-81 
Volume (vol) vol.122 
Number (no) no.412 
Page pp.72-77 
#Pages 6 
Date of Issue 2023-02-23 (EMM) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan