Opencv cơ bản

OpenCV (Open Source Computer Vision Library: http://opencv.org) is an open-source BSD-licensed library thatincludes several hundreds of computer vision algorithms. The document describes the so-called OpenCV 2.x API,which is essentially a C++ API, as opposite to the C-based OpenCV 1.x API. The latter is described in opencv1x.pdf.OpenCV has a modular structure, which means that the package includes several shared or static libraries. Thefollowing modules are available:• core - a compact module defining basic data structures, including the dense multi-dimensional array Mat andbasic functions used by all other modules.• imgproc - an image processing module that includes linear and non-linear image filtering,...
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Opencv cơ bảnThe OpenCV Reference Manual Release 2.4.6.0 July 01, 2013 CONTENTS1 Introduction 1 1.1 API Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 core. The Core Functionality 7 2.1 Basic Structures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.2 Basic C Structures and Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 2.3 Dynamic Structures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 2.4 Operations on Arrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 2.5 Drawing Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172 2.6 XML/YAML Persistence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182 2.7 XML/YAML Persistence (C API) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195 2.8 Clustering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211 2.9 Utility and System Functions and Macros . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2133 imgproc. Image Processing 223 3.1 Image Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223 3.2 Geometric Image Transformations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251 3.3 Miscellaneous Image Transformations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263 3.4 Histograms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277 3.5 Structural Analysis and Shape Descriptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287 3.6 Motion Analysis and Object Tracking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302 3.7 Feature Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306 3.8 Object Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3174 highgui. High-level GUI and Media I/O 319 4.1 User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319 4.2 Reading and Writing Images and Video . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324 4.3 Qt New Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...