浅谈彩色报纸的印前图像处理

报纸是人们获取信息的重要途径,随着技术的进步报纸也向精美化方向发展。印前图像处理作为提高报纸质量的重要环节受到越来越多的重视。从图片来源到印刷过程整个环节流程出发,从印前图像处理角度谈谈影响报纸图像质量的因素以及如何提高图片质量。     

水力旋流器内部流场PIV测试与分析

介绍了PIV测试原理并采用实验方法对水力旋流器内部流场进行测试,根据对拍摄到的示踪粒子的运动图像的处理分析流体的三维速度分布,得到了切向速度、轴向速度和径向速度沿直径方向上的分布规律。     

基于网络文本分析的旅游形象研究——以鼓浪屿为例

通过网络文本收集游客对旅游目的地形象的评价和感受,运用挖掘数据手段,得到游客感知目的地形象属性与特征,已成为旅游形象研究的重要途径．以厦门鼓浪屿为例,将游客点评网站文本数据作为样本,使用ROSTContent Mining软件提取鼓浪屿旅游形象的高频特征词,了解鼓浪屿旅游形象的内容和主题;运用内容分析法,建构分析类目,探索游客对鼓浪屿旅游形象的感知;对旅游形象属性进行评价,了解鼓浪屿在游客心目中形象的优劣程度。为鼓浪屿旅游形象完善和提升提供依据,完善了以网络文本为数据来源的旅游形象研究方法。     

数字图像处理系统的设计与实现

本文基于windows平台设计了一款数字图像处理系统,该系统用VC＋＋实现系统框架,后台使用matlab进行数字图像处理,实现图像的快速导入和导出、图像显示、图像均衡、图像增强、图像编码等图像处理功能。系统采用VC＋＋和mmlab混合编程方法进行开发,具有实时性好、界面友好、操作简单和处理速度快等优点,适合不断发展的数字图像处理技术和高校数字图像处理实验平台搭建。     

丽江旅游形象感知研究——基于网络文本分析的方法

以网络游记为研究样本,结合网络内容分析法和扎根理论的方法研究自助游客对丽江旅游形象的感知。研究发现自助游客对丽江旅游的感知多倾向于积极方面,而消极感知则主要来自于游览体验、旅游设施、购物娱乐及旅游服务等方面。同时由于丽江在旅游资源开发及整体旅游形象推广中的不足,导致其辖内各景区(点)发展严重失衡。综合各类消极感知,提出丽江旅游形象推广的四点建议,包含特色生活方式再建构、旅游标准化管理等。     

Singapore's image as a tourist destination

The present study seeks to examine the image of Singapore as a tourist destination. A sample of 131 tourists was collected at the Singapore Changi International Airport's two departure halls. In addition to answering a short Likert‐scale questionnaire, respondents were asked to describe in their own words the unique aspects of the country. Comparisons of response differences in respect of gender, age groups, educational levels as well as countries of origin were also conducted. Significant perceptual differences were detected with respect to the last three categories. Copyright © 2003 John Wiley &Sons, Ltd.     

A longitudinal study of Olympic Games’ impact on the image of a host country

This study tracked the change in Brazil’s image due to hosting a mega event. The authors measured perceptions of Brazil before and at three points in time after the 2016 Summer Olympics. The findings revealed some differences in the country image but no significant changes in destination image or Olympics image over time. This may indicate how difficult it is to change people’s perceptions positively in a world filled with negative media coverage, such as what Brazil received leading up to and during the Olympics. For DMOs, controlling the media narrative is more important than ever when forming the destination image.     

基于块稀疏度与自适应迭代的压缩感知方法

针对分块压缩感知算法在平滑块效应时损失了大量的细节纹理信息,从而影响图像的重构效果问题,提出了一种基于块稀疏信号的压缩感知重构算法。该算法先采用块稀疏度估计对信号的稀疏性做初步估计,通过对块稀疏度进行估算初始化阶段长,运用块矩阵与残差信号最匹配原则来选取支撑块,再运用自适应迭代计算实现对块稀疏信号的重构,较好地解决了浪费存储资源和计算量大的问题。实验结果表明,相比常用压缩感知方法,所提算法能明显减少运算时间,且能有效提高图像重构效果。     

基于网络文本的上海田子坊形象感知分析

网络评论较客观地记录了游客对目的地的感受,为目的地形象感知研究提供新的素材。研究运用Python从各大知名旅游网站获取网络评论文本,对上海田子坊认知形象、情感形象、整体形象、吸引要素、负面评价等几个方面进行分析。结果显示:游客对田子坊的总体感知是以喜欢和肯定为主,对田子坊的弄堂、小店、石库门、酒吧、小巷子等建筑特色的认同感较高,尤其被田子坊的美食所吸引。但吸引要素中,创意要素很少被提及。基本可以判断田子坊从原先的民居与小厂房混杂的状态变身为政府授牌的创意园区,经过十余年的发展已偏离原先的“创意”定位,逐渐演变为“旅游”唱主角的旅游社区。     

Influence of celebrity involvement on place attachment: role of destination image in film tourism

The importance of place attachment in film tourism has been recognized by scholars and practitioners. However, despite its predominance in the destination management industry, several unaddressed issues remain in film tourism. Therefore, this study is conducted to investigate the relationships between celebrity involvement, destination image, and place attachment. Data obtained from 301 purposeful film tourists indicated that celebrity involvement was positively associated with place attachment. Moreover, cognitive image and affective image partially mediated the relationship between celebrity involvement and place attachment. In other words, cognitive image and affective image represent crucial psychological processes that explain how celebrity involvement influences place attachment. Furthermore, compared with the affective image, the cognitive image had a more crucial mediating role in the celebrity fan–film destination attachment relationship. Theoretical and managerial implications are also provided.