{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,27]],"date-time":"2025-10-27T15:56:17Z","timestamp":1761580577990,"version":"3.41.0"},"reference-count":26,"publisher":"Association for Computing Machinery (ACM)","issue":"4","license":[{"start":{"date-parts":[[2008,1,1]],"date-time":"2008-01-01T00:00:00Z","timestamp":1199145600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.acm.org\/publications\/policies\/copyright_policy#Background"}],"content-domain":{"domain":["dl.acm.org"],"crossmark-restriction":true},"short-container-title":["ACM Trans. Appl. Percept."],"published-print":{"date-parts":[[2008,1]]},"abstract":"<jats:p>Test image contents affect subjective image-quality evaluations. Psychometric methods might show that contents have an influence on image quality, but they do not tell what this influence is like, i.e., how the contents influence image quality. To obtain a holistic description of subjective image quality, we have used an interpretation-based quality (IBQ) estimation approach, which combines qualitative and quantitative methodology. The method enables simultaneous examination of psychometric results and the subjective meanings related to the perceived image-quality changes. In this way, the relationship between subjective feature detection, subjective preferences, and interpretations are revealed. We report a study that shows that different impressions are conveyed in five test image contents after similar sharpness variations. Thirty na\u00efve observers classified and freely described the images after which magnitude estimation was used to verify that they distinguished the changes in the images. The data suggest that in the case of high image quality, the test image selection is crucial. If subjective evaluation is limited only to technical defects in test images, important subjective information of image-quality experience is lost. The approach described here can be used to examine image quality and it will help image scientists to evaluate their test images.<\/jats:p>","DOI":"10.1145\/1278760.1278762","type":"journal-article","created":{"date-parts":[[2008,2,28]],"date-time":"2008-02-28T14:02:33Z","timestamp":1204207353000},"page":"1-15","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":30,"title":["Content and quality"],"prefix":"10.1145","volume":"4","author":[{"given":"Jenni","family":"Radun","sequence":"first","affiliation":[{"name":"University of Helsinki, Finland"}]},{"given":"Tuomas","family":"Leisti","sequence":"additional","affiliation":[{"name":"University of Helsinki, Finland"}]},{"given":"Jukka","family":"H\u00e4kkinen","sequence":"additional","affiliation":[{"name":"Nokia Corporation, Finland"}]},{"given":"Harri","family":"Ojanen","sequence":"additional","affiliation":[{"name":"Nokia Corporation, Finland"}]},{"given":"Jean-Luc","family":"Olives","sequence":"additional","affiliation":[{"name":"Nokia Corporation, Finland"}]},{"given":"Tero","family":"Vuori","sequence":"additional","affiliation":[{"name":"Nokia Corporation, Finland"}]},{"given":"G\u00f6te","family":"Nyman","sequence":"additional","affiliation":[{"name":"University of Helsinki, Finland"}]}],"member":"320","published-online":{"date-parts":[[2008,2,11]]},"reference":[{"key":"e_1_2_1_1_1","first-page":"44","article-title":"Electronic imaging","volume":"3308","author":"Avadhanam N.","year":"1998","unstructured":"Avadhanam , N. and Algazi V. 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