Access to eBooks is limited to institutions that have purchased or currently subscribe to the SPIE eBooks program. eBooks are not available via an individual subscription. SPIE books (print and digital) may be purchased individually on SPIE.Org.

Contact your librarian to recommend SPIE eBooks for your organization.
Translator Disclaimer
Chapter 6:
Image Quality Revisited
We present a concept for image quality that is based on a definition of qual­ity in terms of the degree to which something satisfies the requirements imposed on it. An answer to the question of what image quality is must therefore necessarily include answers to these questions: what are images? what are images used for? and what are the requirements which the use of images imposes on them? In this chapter we therefore start by formulating answers to these questions. To this end, we distinguish two main require­ments that are imposed upon images. First, the items in the image should be successfully discriminable; and, second, the items in the image should be successfully identifiable. Based on the concept of (partially) flexible met­rics presented in Chapter 4, we then formulate algorithms for predicting discriminability, identifiability, and overall performance. To demonstrate the validity of this concept, we compare predictions made with these algo­rithms with experimentally obtained judgments of human subjects.
Online access to SPIE eBooks is limited to subscribing institutions.

Back to Top