Research on Correction Algorithm for Print-Scan Resistant Digital Watermarking Algorithms Based on DWT

2012 ◽  
Vol 262 ◽  
pp. 172-176
Author(s):  
Zhen Jie Zhang ◽  
Zhen Liu ◽  
Hui Yu
Keyword(s):  
Frequency Domain ◽  
Digital Watermarking ◽  
High Amplitude ◽  
Correction Coefficient ◽  
Correction Algorithm ◽  
Before And After ◽  
Kolmogorov Smirnov ◽  
Contrast Stretching ◽  
Smirnov Test

On the basis of the analysis of the second layer of DWT high amplitude coefficients before and after printing and scanning, we propose a correction algorithm for Print-scan resistant Digital Watermarking Algorithms Based on DWT. This correction algorithm corrects in the frequency domain, multiplying the coefficients by a correction coefficient and determining the best correction coefficient by Kolmogorov-Smirnov test. Contrast with two common methods to correct the distorted pixels: brightness transformation and contrast stretching transformation, this correction algorithm has the character of less calculation and takes the influence of print and scan on the surrounding pixels into account. At last, after applying it to several test images and all the NC values becoming bigger, the proposed correction algorithm is proved to be effective and universal.

scholarly journals The Effect of Flat Dual-Cure Stabilizer Occlusal Splint in Pain Relief of Individuals Suffering from Migraine Headaches

2018 ◽  
Vol 12 (1) ◽  
pp. 501-509
Author(s):  
Majid Sahebi ◽  
Somayeh Zeighami ◽  
Mohammadreza Hajimahmoudi
Keyword(s):  
Analogue Scale ◽  
Alternative Therapy ◽  
Case Group ◽  
Occlusal Splint ◽  
Migraine Headaches ◽  
Before And After ◽  
Kolmogorov Smirnov ◽  
And Control ◽  
Paired T Test ◽  
Smirnov Test

Background: No study on the effect of dual-cure stabilizer splint without canine ramp in migraine patients is present. Objective: This study was conducted to determine the effects of maxillary flat dual-cure stabilizer occlusal splint on severity, frequency and episodes of headaches in individuals suffering from a migraine. Methods: In this interventional clinical trial, 30 eligible patients were divided into 2 groups (case and control); each group consisted of 8 men and 7 women. Dual-cure stabilizer splint was made for patients in the case group and they used the adjusted splint 20 hours a day for 6 weeks. The severity, frequency and episodes of migraine attacks before and after using the splint were determined. For grading pain, severity visual analogue scale was used. The data were analyzed using SPSS 20 and Kolmogorov-Smirnov test and paired t-test. Results: The severity, frequency, and episodes of migraine attacks before and after using the splint were reduced by 56%, 68%, and 72%, respectively. The reduction was statistically significant (p < 0.05). Discussion: Despite the effect of occlusal devices on the migraine disorder is controversial, the most researchers agree that using these appliances can be effective in reducing headache in migraine patients. Conclusion: Given the favorable effects of dual-cure stabilizer splint on reducing the severity, frequency and episodes of migraine headaches, the device can be used as an effective alternative therapy besides common pain-relieving methods.

scholarly journals Effects of Anaerobic Exercise in the Morning and Evening Sessions on some Coagulation Factors in Non-Athletes Female Students of Islamic Azad University of Sanandaj

2014 ◽  
Vol 10 ◽  
pp. 1-9 ◽  
Author(s):  
Ellahe Fakhr Tabatabai ◽  
Ahmad Hematfar ◽  
Shahriar Saeidian
Keyword(s):  
Cardiovascular Disease ◽  
Prothrombin Time ◽  
Coagulation Factors ◽  
Female Students ◽  
Anaerobic Exercise ◽  
Exercise Protocol ◽  
Before And After ◽  
Kolmogorov Smirnov ◽  
Two Stages ◽  
Smirnov Test

The purpose of the present research is compare the effects of coagulation factors in non-athletes gilrs after exhaustive anaerobic activity sessions in the morning and evening. Present study was semi-emprical that was done on 12 non-athlete female students in range of 18-24 years. Exercise protocol was RAST test, that in which each person passed amain 35 meters of distance for 6 times and rest 10 seconds between each stage. Blood sampling was performed Once in the morning (8 am) and a later week in evening (5 pm) in two stages (before and after). Datas were analyzed with Kolmogorov Smirnov test, Levine's test and two-way ANOVA level (p < 0/05 ). The results showed that there was not significative difference between the effects of an anaerobic activity in the morning and in the evening on hematocrit, platelet, partial time Thromboplastin (PTT), Prothrombin time (PT) and fibrinogen in non-athletic subjects. Findings showed that training for normal persons, non-athletes and patients, especially patients with clotting problems, and cardiovascular disease will be suggeste, each activity to be act with caution at morning and during the day.

scholarly journals Level of knowledge regarding COVID-19 health protocols in the tourism sector in Taro village before and after counseling

2022 ◽  
Vol 13 (1) ◽  
pp. 086-091
Author(s):  
Nofita Fachryandini ◽  
Shabrina Nur Imanina ◽  
Ayurveda Zaynabila Heriqbaldi ◽  
Widati Fatmaningrum
Keyword(s):  
P Value ◽  
The People ◽  
Tourism Sector ◽  
Significant Difference ◽  
Before And After ◽  
Quasi Experimental ◽  
Kolmogorov Smirnov ◽  
Level Of Knowledge ◽  
The Mean ◽  
Smirnov Test

Introduction: Taro village has a higher risk of gathering the people since it is one of the most popular tourism sectors in Bali hence increasing the potential to spread coronavirus disease 2019 (COVID-19). The level of knowledge plays an important role in determining whether the society is ready to implement the health protocols or not. This community service aims to evaluate the level of knowledge regarding COVID-19 health protocols in the tourism sector in the Taro village. Method: This research was conducted using a quasi-experimental one-group pretest-posttest design in Taro village, Bali. Respondents filled out the questionnaire before and after counseling. The questionnaire consisted of 10 items of knowledge. The participants were Taro’s residents who met inclusion and exclusion criteria. A total of 31 respondents were taken. The data were tested for normality with the Kolmogorov-Smirnov test and analyzed with paired T-test using the IBM SPSS statistics version 25. Significance was determined at a 5% level (P-value ≤0.05). Results: A total of 31 valid filled-questionnaires were collected. In general, Taro’s residents’ knowledge regarding COVID-19 health protocol in the tourism sector was sufficient, but some topics are still insufficient. The mean score before counseling was 79,03 ± 1,340 while the mean score after counseling was 86,13 ± 1,366. There was a significant difference (p<0,05) on level of knowledge (p=0,000) before and after counseling. Conclusion: There was a significant difference in the level of knowledge of Taro village’s residents toward COVID-19 health protocols in the tourism sector before and after counseling.

scholarly journals Effects of Anaerobic Exercise on some Coagulation Factors in Non-Athletes Female Students of Islamic Azad University of Sanandaj

2015 ◽  
Vol 39 ◽  
pp. 20-27
Author(s):  
Mohsen Foroughi ◽  
Ellahe Fakhr Tabatabai
Keyword(s):  
Significant Influence ◽  
Coagulation Factor ◽  
Coagulation Factors ◽  
Female Students ◽  
Anaerobic Exercise ◽  
Exercise Protocol ◽  
Before And After ◽  
Kolmogorov Smirnov ◽  
Two Stages ◽  
Smirnov Test

The purpose of the present research is compare the effects of coagulation factors in non-athletes gilrs after exhaustive anaerobic activity .Present study was semi-emprical that was done on 12 non-athlete female students in range of 18-24 years. Exercise protocol was RAST test, that in which each person passed amain 35 meters of distance for 6 times and rest 10 seconds between each stage.Blood sampling was performed in two stages (before and after).Datas were analyzed with Kolmogorov Smirnov test, Levine's test and two-way ANOVA level (p < 0/05 ). The results showed that anaerobic exercise had a significant influence on partial time Thromboplastin (PTT), and fibrinogen in non-athletic subjects.But there was not significative difference on Prothrombin time (PT), platelet and hematocrit.Findings suggested that a meeting of anaerobic exercise on blood coagulation factor, effectiveness and changes in some of the invoices for training program Drafradghyrfal is important.

Uji Komparasi Abnormal Return, Trading Volume, Dan Trading Frequency Sebelum Dan Sesudah Peristiwa Share Split Pada Perusahaan Yang Terdaftar Di Bursa Efek Indonesia Periode 2010 – 2013

2014 ◽  
Vol 6 (2) ◽  
pp. 1-17
Author(s):  
Jordan Vincent ◽  
Ratnawati Kurnia
Keyword(s):  
Abnormal Return ◽  
Trading Volume ◽  
Stock Exchange ◽  
Abnormal Returns ◽  
Trading Frequency ◽  
Analysis Technique ◽  
Before And After ◽  
Kolmogorov Smirnov ◽  
The Difference ◽  
Smirnov Test

This study is event study that was conducted to determine differences in abnormal returns, trading volume, and trading frequency before and after the events of the share split. The object of this research is the companies that did the share split and listed in Indonesia Stock Exchange in 2010 - 2013.  Samples were taken by using purposive sampling as many as 24 companies. The criteria is the company did not do corporate action right issue, pre-emptive rights, a share dividend and bonus shares in the same year with share split, then the company share actively traded 15 days before and after the share split. Data analysis technique begins with a test of normality using Kolmogorov - Smirnov test, then test the hypothesis using a paired t test to compare the differences before and after share split. In testing the hypothesis showed that the difference was only found on variable trading frequency before and after share split. While the other variables are abnormal return and trading volume was not found significant differences before and after the share split. Keywords: Share split, abnormal returns, trading volume, trading frequency

scholarly journals The Influence of Educational Games Tools on Students’ Cognitive Ability in Geometry of Students Group A

2020 ◽  
Vol 9 (1) ◽  
pp. 1-6
Author(s):  
Desy Ayu Fitriana ◽  
Rina Windiarti
Keyword(s):  
Cognitive Ability ◽  
Test Score ◽  
Educational Games ◽  
Main Question ◽  
Normality Test ◽  
Before And After ◽  
Post Test ◽  
Kolmogorov Smirnov ◽  
Group A ◽  
Smirnov Test

This research has been done to respond the lower range of students’ cognitive ability in group A to recognize shape of geometry in Al Irsyad kindergarten Pemalang. The main question in this research was is there any influence in using the educational games tools on the cognitive ability in geometry of students in kindergarten A? This research aimed to find out is there any influence of Educational Games Tools (APE) on students ‘ability in recognizing the shape of geometry. The subjects of this research are students in group A in Al-Irsyad kindergarten, Pemalang. This research used quantitative approach with the types of pre-experiment and research design one group pre-post test where the researcher observed before and after the treatment.. The researcher chooses the samples with purposive sampling, there are 30 students. This study find out the average of pre-test score 1,83  lower than the average of post-test score 3,07. Statistic examined with normality test using one sample kolmogorov smirnov test find out the score 0,200 > α = 0,05, with the normal distributional data. From the Paired T-test program SPSS 24.0 version find out the result score Sig as 0,00 < 0,05 and score -thitung <-ttabel (-28,358 < -2,0452). Therefore, Ho refused and Ha accepted. We can conclude that APE influence on the students’ cognitive ability in to recognize students geometry group A.

scholarly journals PILATES EXERCISE DAPAT MENURUNKAN INDEKS MASSA TUBUH (IMT) PEREMPUAN OBESITAS TINGKAT 1 DI PERUMAHAN BUMI DIRGANTARA PERMAI BEKASI

2017 ◽  
Vol 4 (2) ◽  
pp. 111-122
Author(s):  
Dwi Agustina ◽  
Nikky Novannisa
Keyword(s):  
P Value ◽  
Degenerative Diseases ◽  
Test Results ◽  
Before And After ◽  
Prevalence Of Obesity ◽  
Kolmogorov Smirnov ◽  
The Mean ◽  
Level 1 ◽  
The Difference ◽  
Smirnov Test

The prevalence of obesity is tend to increase both in the world and in Indonesia, and a higher prevalence in women. Obesity is a risk factor of various degenerative diseases such as coronary heart disease and stroke, musculoskeletal disorders, especially osteoarthritis, diabetes mellitus and cancer. One exercise that is appropriate for treating obesity is Pilates exercise which is a muscle contraction exercises that are low impact. The aim of this study was to determine the effect of Pilates Exercise on obese level 1 women's body mass index. The type of research was experimental with pre-experimental research design. The experiment was conducted in late April-May 2016 in Bumi Dirgantara Permai. The number of sample was 15 obese level 1women. Pilates exercises was given for one hour three times a week for 5 weeks. Analysis of the data include univariate and bivariate with the Kolmogorov-Smirnov test for checking normality data and Paired t-test for testing IMT different before and after intervention. Results: The mean BMI before intervention was 25.74 kg / m2 and after the intervention of 26.44 kg / m2. The reduction in BMI of 0.7 kg / m2, with test results p value of 0.0001 indicated the difference in IMT before and after the intervention were significant. Conclusion:To maintain the IMT and improve posture, Pilates Exercise should be done regularly.

Uji Komparasi Abnormal Return, Trading Volume, Trading Frequency, Dan Bid-Ask Spread Sebelum Dan Sesudah Share Split

2016 ◽  
Vol 8 (2) ◽  
pp. 24-45
Author(s):  
Tania Hayu Safira ◽  
Febryanti Simon
Keyword(s):  
Abnormal Return ◽  
Trading Volume ◽  
Stock Exchange ◽  
Distributed Data ◽  
Trading Frequency ◽  
Bid Ask Spread ◽  
Analysis Technique ◽  
Before And After ◽  
Test Of Hypothesis ◽  
Kolmogorov Smirnov

This study is event study that was conduct to examine the differences of abnormal return, trading volume, trading frequency and bid-ask spread before and after the events of share split. The object of this research is the companies that did share split and listed in Indonesia Stock Exchange in 2008 - 2015. The samples are 30 companies chosen by purposive sampling method. The criteria are the company did not do corporate action right issue, pre-emptive rights, a share dividend and bonus shares in the same year with share split. Event window used in this study was 30 days consisting of 15 days before and 15 days after the share split. Data analysis technique begins with a test of normality using Kolmogorov – Smirnov and transform for unnormally distributed data. Then, test of hypothesis using Paired t – test to compare the differences before and after share split. The results of this study showed that volume trading activity and trading frequency had significant differences before and after the share split. While, variable abnormal return and bid-ask spread had not significant differences before and after the share split. Keywords: Abnormal return, bid-ask spread, share split, trading frequency, trading volume.

Age dependency of the diabetes effects on the iris recognition systems performance evaluation results

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Mohammadreza Azimi ◽  
Seyed Ahmad Rasoulinejad ◽  
Andrzej Pacut
Keyword(s):  
Iris Recognition ◽  
Recognition Task ◽  
Aging Effect ◽  
Recognition System ◽  
Health Condition ◽  
Age Dependency ◽  
Biometric Systems ◽  
Kolmogorov Smirnov ◽  
Recognition Systems ◽  
Smirnov Test

AbstractIn this paper, we attempt to answer the questions whether iris recognition task under the influence of diabetes would be more difficult and whether the effects of diabetes and individuals’ age are uncorrelated. We hypothesized that the health condition of volunteers plays an important role in the performance of the iris recognition system. To confirm the obtained results, we reported the distribution of usable area in each subgroup to have a more comprehensive analysis of diabetes effects. There is no conducted study to investigate for which age group (young or old) the diabetes effect is more acute on the biometric results. For this purpose, we created a new database containing 1,906 samples from 509 eyes. We applied the weighted adaptive Hough ellipsopolar transform technique and contrast-adjusted Hough transform for segmentation of iris texture, along with three different encoding algorithms. To test the hypothesis related to physiological aging effect, Welches’s t-test and Kolmogorov–Smirnov test have been used to study the age-dependency of diabetes mellitus influence on the reliability of our chosen iris recognition system. Our results give some general hints related to age effect on performance of biometric systems for people with diabetes.

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