Block Based Data Hiding Method for Images

Tuncer, Türker; Sönmez, Yasin

doi:10.23884/ejt.2017.7.2.02

Cited by 6 publications

(3 citation statements)

References 18 publications

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“…Again, in mobile applications, the error rate was reduced from 13% to 4% by applying rhythm-based keystroke dynamics to the password entries [15]. The system presented in this study may not be as cheap as relying only on the rhythm of keystroke dynamics because of the need for extra hardware [16][17], but it appears to directly affect the reliability coefficient.…”

Section: Discussionmentioning

confidence: 91%

Unlock A Device with Pressure and Rhythm Based Password

Aydemir

Toslak

2019

Balkan Journal of Electrical and Computer Engineering

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When people open their doors, they usually use the keys they carry in their pockets. As an alternative to these used keys, it is possible to open the doors which are authorized with RFID-enabled key holders or ID cards. But it seems that different alternatives have not been developed much. Moreover, none of them carries the sensory understanding dimension of the person and it is not possible to determine whether or not the entrance request has been made by that person. In this study, both the identification of the person and the opening of the door are ensured by considering both the stroking rhythm and the stroke force of a buttoner placed in the door. Thus, it is possible to open the door according to the person's identity and authority without carrying any object beside it, and it will have a unique original value. The milliseconds between each stroke for the stroke of the quill are recorded in the generated database. Comparison is made with the data obtained in the next stroke and the person is used for verification. In addition, the pressure data of the person is also kept in the database for each stroke and compared. In the study, the data of two different people were recorded in the system and the information of the people using the subjective button was recorded. Then, in addition to these two different people, a total of 15 people, including 13 different people, were allowed to use the system. In total, 50 door opening requests data were recorded and 87.5% success rate was obtained.

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Section: Discussionmentioning

confidence: 91%

Unlock A Device with Pressure and Rhythm Based Password

Aydemir

Toslak

2019

Balkan Journal of Electrical and Computer Engineering

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“…This difference can be ignored and the two font types can be considered equal in terms of the print area. Furthermore, in future studies, both fonts that use less print space and methods that can hide data in various ways can be used [28].…”

Section: Discussionmentioning

confidence: 99%

Comparison of the Printing Areas for Commonly Used Font Types: Example of Green Information

Aydemir¹

2019

European Journal of Technic

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Some of the fonts used in the computer systems are designed to facilitate readability on the computer screen while others are designed to use both readability and print space economically. However, computer users do not have any idea which of the most commonly used fonts are more economical. In the present study, the printing area of the 10 commonly used fonts were examined with image processing methods and compared among each other. It is seen that the font which uses the least print area among Century Schoolbook,

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“…In order to watermark extraction, a block based method is presented. The pseudo code of the proposed method is given as Algorithm 2 [18]. Algorithm 2.…”

Section: Watermark Extractionmentioning

confidence: 99%

Quantum-Dot Cellular Automata based Fragile Watermarking Method for Tamper Detection using Chaos

Tuncer¹,

Doğan²

2018

IJITCS

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Fragile watermarking techniques have been widely used in the literature for tampered areas localization and image authentication. In this study, a novel quantum-dot cellular automata based fragile watermarking method for tampered area localization using chaotic piecewise map is proposed. Watermark generation, embedding, extraction and tampered area localization phases are consisted of the proposed quantum dot cellular automata and chaos based fragile watermarking method. In the watermark generation phase, quantum dot cellular automata and piecewise map which is a chaotic map are utilized. A block based method is utilized as authentication values embedding and extraction phases. To detect tampered areas, generated watermark and extracted watermark are compared. Also, block counters are used to tamper detection. In order to evaluate this method, capacity, imperceptibility and image authentication ability were utilized as performance metrics and the results of these metrics clearly illustrated that the presented method is suitable for image authentication and tamper detection.

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Block Based Data Hiding Method for Images

Cited by 6 publications

References 18 publications

Unlock A Device with Pressure and Rhythm Based Password

Unlock A Device with Pressure and Rhythm Based Password

Comparison of the Printing Areas for Commonly Used Font Types: Example of Green Information

Quantum-Dot Cellular Automata based Fragile Watermarking Method for Tamper Detection using Chaos

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