'Unsharp masking' presentation slideshows

Filtering

Basis beeldverwerking (8D040) d r. Andrea Fuster dr . Anna Vilanova Prof.dr.ir . Marcel Breeuwer. Filtering. Contents. Sharpening Spatial Filters 1 st order derivatives 2 nd order derivatives Laplacian Gaussian derivatives Laplacian of Gaussian ( LoG ) Unsharp masking.

423 views • 29 slides

Convolution and Edge Detection

Convolution and Edge Detection. 15-463: Computational Photography Alexei Efros, CMU, Fall 2005. Some slides from Steve Seitz. Fourier spectrum . Fun and games with spectra. Gaussian filtering. A Gaussian kernel gives less weight to pixels further from the center of the window

521 views • 23 slides

Lightness filtering in color images with respect to the gamut

Lightness filtering in color images with respect to the gamut. School of Electrical Engineering and Computer Science Kyungpook National Univ. Fourteenth Color Imaging Conference Judith Dijk and Piet W. Verbeek. Presented by Soo-Jin Sung. Abstract. Proposed method

267 views • 18 slides

Filtering in the Frequency Domain

Filtering in the Frequency Domain. Chapter 4 . Chapter Objectives. This chapter is concerned primarily with establishing a foundation for the Fourier transform and how it is used in basic image filtering. Fourier Transformation History The big Idea Background. History.

434 views • 14 slides

Detecting Dark Clouds in the Galactic Plane with 2MASS data By : Luis Mercado

Detecting Dark Clouds in the Galactic Plane with 2MASS data By : Luis Mercado. In collaboration with the part of GLIMPSE team (Christer Watson, Ed Churchwell and Bob Benjamin). Introduction / Background. What are Dark Clouds and why study them? Optically thick at visual and IR wavelengths

202 views • 13 slides

Image Enhancement

Image Enhancement. Biomedical Image Analysis Rangaraj M. Rangayyan. course: biomedical image processing. vibhor kumar Hannu Laaksonen. Topics to be covered Convolution mask Operations . unsharp masking . Sobtracting Laplacian 2) High Frequency Emphasis

339 views • 12 slides

Digital Images

232 views • 11 slides

A systematic search for X-ray cavities in galaxy cluster s, groups, and elliptical galaxies

A systematic search for X-ray cavities in galaxy cluster s, groups, and elliptical galaxies Jaejin Shin 1,2 , Jong- Hak Woo 1,2 , John S. Mulchaey 2 1 Seoul National University, Seoul, Republic of Korea 2 Carnegie Observatories, Pasadena, CA, United States. [O III] ? 5007. Abstract.

77 views • 1 slides