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Comparing image quality of print-on-demand books and photobooks from web-based vendors

机译：比较来自网络供应商的按需印刷书籍和照相簿的图像质量

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摘要

Because of the emergence of e-commerce and develop-nments in print engines designed for economical output of very shortnruns, there are increased business opportunities and consumer op-ntions for print-on-demand books and photobooks. The current statenof these printing modes allows for direct uploading of book files vianthe web, printing on nonoffset printers, and distributing by standardnparcel or mail delivery services. The goal of this research is to as-nsess the image quality of print-on-demand books and photobooksnproduced by various Web-based vendors and to identify correlationsnbetween psychophysical results and objective metrics. Six vendorsnwere identified for one-off (single-copy) print-on-demand books, andnseven vendors were identified for photobooks. Participants rank or-ndered overall quality of a subset of individual pages from each book,nwhere the pages included text, photographs, or a combination of thentwo. Observers also reported overall quality ratings and price esti-nmates for the bound books. Objective metrics of color gamut, colornaccuracy, accuracy of International Color Consortium profile usage,neye-weighted root mean square L*, and cascaded modulation trans-nfer acutance were obtained and compared to the observer re-nsponses. We introduce some new methods for normalizing data asnwell as for strengthening the statistical significance of the results.nOur approach includes the use of latent mixed-effect models. Wenfound statistically significant correlation with overall image qualitynand some of the spatial metrics, but correlations between psycho-nphysical results and other objective metrics were weak or nonexist-nent. Strong correlation was found between psychophysical results ofnoverall quality assessment and estimated price associated withnquality. The photobook set of vendors reached higher image-qualitynratings than the set of print-on-demand vendors. However, the pho-ntobook set had higher image-quality variability.
机译：由于电子商务的兴起以及为经济性极低的产出量而设计的印刷引擎的发展，对于按需印刷书籍和照相簿的商机和消费者选择越来越多。这些打印模式的当前状态允许直接上传网上图书，在非胶版打印机上打印以及通过标准包裹或邮件递送服务进行分发。这项研究的目的是评估各种基于Web的供应商生产的按需印刷书籍和相簿的图像质量，并确定心理物理结果与客观指标之间的相关性。确定了六个供应商提供一次性（单份）按需印刷书籍，而确定了七个供应商提供了照相簿。参与者对每本书的各个页面的子集的整体质量进行排序或评估，其中页面包括文本，图片或两者的组合。观察家还报告了装订书籍的整体质量评级和价格估计。获得了色域，色准确度，国际色彩协会配置文件使用的准确性，肾脏加权均方根L *和级联调制传输锐度的客观指标，并将其与观察者的响应进行了比较。我们引入了一些新方法来标准化数据并增强结果的统计学意义。n我们的方法包括使用潜在的混合效应模型。 Wenfound与整体图像质量和某些空间指标在统计​​学上具有显着相关性，但心理-物理结果与其他客观指标之间的相关性很弱或根本不存在。在整体质量评估的心理物理结果与与质量相关的估计价格之间发现强烈的相关性。与按需打印供应商相比，相簿供应商的图像质量评价更高。但是，照相本集具有较高的图像质量可变性。

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  • 来源
    《Journal of Electronic Imaging》 |2010年第1期|p.1-17|共17页
  • 作者

    Jonathan Phillips Peter Bajorski Peter Burns Erin Fredericks and Mitchell Rosen;

  • 作者单位

    Jonathan PhillipsRochester Institute of TechnologyMunsell Color Science LaboratoryChester F. Carlson Center for Imaging ScienceRochester, New York 14623E-mail: jbp3319@cis.rit.eduPeter BajorskiRochester Institute of TechnologyGraduate Statistics DepartmentRochester, New York 14623Peter BurnsCarestream Health Inc.Rochester, New York 14615Erin FredericksRochester Institute of TechnologyMunsell Color Science LaboratoryChester F. Carlson Center for Imaging ScienceRochester, New York 14623Mitchell RosenRochester Institute of TechnologyMunsell Color Science LaboratoryChester F. Carlson Center for Imaging ScienceRochester, New York 14623;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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