Programming and Scripts
Scripts To create a script, use the edit command, edit mysphere This command opens a blank file named mysphere.m. Enter some code that creates a unit sphere, doubles the radius, and plots the results: [x,y,z] = sphere;...
Tagged: Images
Working with 8-Bit and 16-Bit Images
8-Bit and 16-Bit Indexed Images Double-precision (64-bit) floating-point numbers are the default MATLAB representation for numeric data. However, to reduce memory requirements for working with images, you can store images as 8-bit or 16-bit...
Matlab Image Types
Indexed Images An indexed image consists of a data matrix, X, and a colormap matrix, map. map is an m-by-3 array of class double containing floating-point values in the range [0, 1]. Each row...
Working with Images in MATLAB Graphics
What Is Image Data? The basic MATLAB data structure is the array, an ordered set of real or complex elements. An array is naturally suited to the representation of images, real-valued, ordered sets of...
Displaying Graphics Images
Image Types and Display Methods To display a graphics file image, use either image or imagesc. For example, assuming RGB is an image, figure(‘Position’,[100 100 size(RGB,2) size(RGB,1)]); image(RGB); set(gca,’Position’,[0 0 1 1]) [warning]This image...
Reading, Writing, and Querying Graphics Image Files
Working with Image Formats In its native form, a graphics file format image is not stored as a MATLAB matrix, or even necessarily as a matrix. Most graphics files begin with a header containing...
Matlab Core Graphics Objects
Core graphics objects include basic drawing primitives: Line, text, and polygon shells (patch objects) Specialized objects like surfaces, which are composed of a rectangular grid of vertices Images Light objects, which are not visible...