tailieunhanh - Image Processing Using MATLAB

This worksheet is an introduction on how to handle images in Matlab. When working with images in Matlab, there are many things to keep in mind such as loading an image, using the right format, saving the data as different data types, how to display an image, conversion between different image formats, etc. This worksheet presents some of the commands designed for these operations. Most of these commands require you to have the Image processing tool box installed with Matlab. | Image Processing Using MATLAB Techs urce . my Image Processing Using MATLAB TechSource Systems Sdn. Bhd. 2005 Techs URCE Systems Sdn. Bhd. Techs urce Course Outline 1. Working with Images in MATLAB a Image types and classes b Read write images c Display images 2. Basic Image Processing a Image contrast and brightness enhancement b Image arithmetic 3. Block Processing of Images 4. Image Restoration a Noise reduction filtering b Image alignment 5. Image Segmentation Edge Detection 6. Case Studies 2005 Techs URGE Systems Sdn. Bhd. Copyrighted 2005 TechSource Systems Sdn Bhd 1 Image Processing Using MATLAB Working with Images in MATLAB Techs urce . my Section Outline 1. Image types Index images Intensity images Binary images RGB images 2. Importing and exporting images in MATLAB imfinfo imread and imwrite imshow 3. Converting between image formats 2005 Techs URCE Systems Sdn. Bhd. Working with Images in MATLAB Techs urce Image Types Four basic types of images are supported in MATLAB Index images Intensity images Binary images RGB images m-by-3 colormap matrix 0 1 or uint8 0 1 m-by-n-by-3 matrix load samplelmages 2005 Techs URCE Systems Sdn. Bhd. Copyrighted 2005 TechSource Systems Sdn Bhd 2 Image Processing Using MATLAB Working with Images in MATLAB Techs urce . my Image Types MATLAB Data Types Used A wide array of different data types exist in MATLAB but only a subset of the data types are used to represent images in MATLAB. ARRAY 2005 Techs URCE Systems Sdn. Bhd. Working with Images in MATLAB Techs urce Image Types Index Images An indexed image consists of a data matrix X and a map 2005 Techs URCE Systems Sdn. Bhd. Copyrighted 2005 TechSource Systems Sdn Bhd