Now showing items 1-7 of 7

    • Accurate color reproduction of CRT: displayed images as projected 35mm slides 

      Fairchild, Mark; Berns, Roy; Lester, Audrey (International Society for Optical Engineering (SPIE), 1996-01-01)
      Accurate color reproduction of images presented on a computer-controlled CRT display as projected 35-mm transparencies is a complicated procedure requiring the characterization and control of several imaging processes and ...
    • Application of spectral mixture analysis and image fusion techniques for image sharpening 

      Gross, Harry; Schott, John (Elsevier Science B.V., Amsterdam, 1998-02)
      Image fusion is used to merge images of different Spatial and spectral resolutions to create a high spatial resolution multispectral conibination. High spectral resolution allows identification of materials in the scene, ...
    • Empirical formula for creating error bars for the method of paired comparison 

      Montag, Ethan (International Society for Optical Engineering (SPIE), 2006-01)
      The method of paired comparison based on Thurstone’s case V of his law of comparative judgments is often used as a psychophysical method to derive interval scales of perceptual qualities in imaging applications. However, ...
    • Image deconvolution using a micro genetic algorithm 

      Johnson, Eric; Abushagur, Mustafa (Elsevier - Optics Communications, 1997-07-15)
      Image deconvolution is addressed using a modified Genetic Algorithm for the error minimization. Numerical examples are presented to demonstrate the algorithm’s robustness. Specifically, noise levels and various regions ...
    • Image lightness rescaling using sigmoidal contrast enhancement functions 

      Braun, Gustav; Fairchild, Mark (International Society for Optical Engineering (SPIE), 1999-10)
      In color gamut mapping of pictorial images, the lightness rendition of the mapped images plays a major role in the quality of the final image. For color gamut mapping tasks, where the goal is to produce a match to the ...
    • Linear pixel shuffling for image processing, an introduction 

      Anderson, Peter (International Society for Optical Engineering (SPIE), 1993-04)
      We investigate a method of ordering pixels (the elements of a rectangular matrix) based on an arithmetic progression with wrap-around (modular arithmetic). For appropriate choices of the progression's parameters, based on ...
    • Two-stage spatial-filtering for diffraction pattern-analysis 

      Blodgett, Jerry; Easton, Roger (Optical Society of America, 1981-03)
      The use of optical power spectrum analysis for feature detection and classification is often restricted by the superposition of the aperture spectrum. A spatial frequency filtering technique using a circular aperture and ...