41. Image quality introduction - 2011

41. Image quality introduction - 2011 - EE 638: Principles...

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EE 638: Principles of Digital Color Imaging Systems Lecture xx: Image Quality
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Image quality – an illustrative example Prof. Charles A. Bouman is honored for his service as Editor of the IEEE Transactions on Image Processing (shown with Prof. Ali H. Sayed, UCLA, VP-Conferences and Prof. Jose M. F. Moura, CMU, President, IEEE SP Society) Open image in Photoshop to be sure about what we are seeing. What are the image quality defects that are visible here? ”It's a little frightening to think that this picture is associated with the Transactions on Image Processing” – C. A. Bouman
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Image quality defects present in image Noise in low-light parts of scene Moire on Prof. Bouman’s shirt JPEG artifacts Poor color rendering – too red Poor contrast and tone – too dark Glare from flash
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Overview As imaging continues to become more pervasive, image quality has become a topic of growing interest. We have done a great deal of work in this area over the years within our laboratory. I will use this work as a partial basis for the discussion in class. These will be augmented by materials from other sources.
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Image quality resources – textbooks Brian W. Keelan, Handbook of Image Quality Characterization and Prediction, Marcel Dekker, 2002 (Kodak’s “go-to guy” for image quality). Peter Engeldrum, Psychometric Scaling: A Toolkit for Imaging Systems Development , Imcotek Press, 2000 .
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IEEE Transactions on Image Processing Journal of Electronic Imaging (IS&T and SPIE) Journal of Imaging Science and Technology (IS&T)
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41. Image quality introduction - 2011 - EE 638: Principles...

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