'Local contrast' diaporamas de présentation

Contrast-Aware Halftoning

Contrast-Aware Halftoning. Hua Li and David Mould. Previous Work. Tone Reproduction. Visual artifacts. Lack of structure preservation. Floyd-Steinberg error diffusion[FS74]. Original Image. Previous Work. Tone Reproduction. Blue Noise. Improved. Visual artifacts.

603 views • 50 slides

Current Trends in Image Quality Perception

Current Trends in Image Quality Perception. Mason Macklem Simon Fraser University http://www.cecm.sfu.ca/~msmackle. General Outline. Examine model of human visual system (HVS) Examine properties of human perception of images consider top-down/bottom-up distinction

647 views • 49 slides

708 views • 33 slides

Apparent Greyscale: A Simple and Fast Conversion to Perceptually Accurate Images and Video

Apparent Greyscale: A Simple and Fast Conversion to Perceptually Accurate Images and Video. Kaleigh Smith Pierre-Edouard Landes Joelle Thollot Karol Myszkowski. OUTLINE. Introduction Related Work Apparent Lightness Global Apparent Lightness Mapping

311 views • 19 slides

Apparent Greyscale: A Simple and Fast Conversion to Perceptually Accurate Images and Video

Apparent Greyscale: A Simple and Fast Conversion to Perceptually Accurate Images and Video. Kaleigh Smith Pierre-Edouard Landes Joelle Thollot Karol Myszkowski. OUTLINE. Introduction Related Work Apparent Lightness Global Apparent Lightness Mapping

192 views • 19 slides

Text Localization, Enhancement and Binarization in Multimedia Documents

Suppression of false alarms. m.... mean of the window s..... standard deviation of the window k..... parameter R.... dynamics of the gray values of the image M.... minimum gray value of the image. Text Localization, Enhancement and Binarization in Multimedia Documents.

102 views • 1 slides