深入理解OpenCV 实用计算机视觉项目解析-源代码

《深入理解OpenCV：实用计算机视觉项目解析》系统地介绍如何使用OpenCV来构建与计算机视觉相关的应用，如增强现实、车牌识别、人脸检测等。每章都会介绍一个典型的计算机视觉应用问题，并并提供相关的背景介绍及全部源代码，为快速解决实际计算机视觉项目遇到的问题提供系统实用指南。

/*****************************************************************************
*   Cartoonifier for Android.
******************************************************************************
*   by Shervin Emami 5th Dec 2012 （shervin.emami@gmail.com）
*   http://www.shervinemami.info/
******************************************************************************
*   Ch1 of the book “Mastering OpenCV with Practical Computer Vision Projects“
*   Copyright Packt Publishing 2012.
*   http://www.packtpub.com/cool-projects-with-opencv/book
*****************************************************************************/

#include 
#include 
#include 
#include 


#include “cartoon.h“
#include “ImageUtils.h“ // Handy functions for debugging OpenCV images by Shervin Emami.


using namespace std;
using namespace cv;

extern “C“ {


// Just show the plain camera image without modifying it.
JNIEXPORT void JNICALL Java_com_Cartoonifier_CartoonifierView_ShowPreview（JNIEnv* env jobject
        jint width jint height jbyteArray yuv jintArray bgra）
{
    // Get native access to the given Java arrays.
    jbyte* _yuv  = env->GetByteArrayElements（yuv 0）;
    jint*  _bgra = env->GetIntArrayElements（bgra 0）;

    // Prepare a cv::Mat that points to the YUV420sp data.
    Mat myuv（height + height/2 width CV_8UC1 （uchar *）_yuv）;
    // Prepare a cv::Mat that points to the BGRA output data.
    Mat mbgra（height width CV_8UC4 （uchar *）_bgra）;

    // Convert the color format from the camera‘s
    // NV21 “YUV420sp“ format to an Android BGRA color image.
    cvtColor（myuv mbgra CV_YUV420sp2BGRA）;

    // OpenCV can now access/modify the BGRA image if we want ...


    // Release the native lock we placed on the Java arrays.
    env->ReleaseIntArrayElements（bgra _bgra 0）;
    env->ReleaseByteArrayElements（yuv _yuv 0）;
}


DECLARE_TIMING（CartoonifyImage）;


// Modify the camera image using the Cartoonifier filter.
JNIEXPORT void JNICALL Java_com_Cartoonifier_CartoonifierView_CartoonifyImage（JNIEnv* env jobject
        jint width jint height jbyteArray yuv jintArray bgra
        jboolean sketchMode jboolean alienMode jboolean evilMode jboolean debugMode）
{
    START_TIMING（CartoonifyImage）;

    // Get native access to the given Java arrays.
    jbyte* _yuv  = env->GetByteArrayElements（yuv 0）;
    jint*  _bgra = env->GetIntArrayElements（bgra 0）;

    // Input color format （from camera）:
    // “myuv“ is the color image in the camera‘s native NV21 YUV 420 “semi-planar“ format which means
    // the first part of the array is the grayscale pixel array followed by a quarter-sized pixel
    // array that is the U & V color channels interleaved. So if we just want to access a grayscale
    // image we can get it directly from the 1st part of a YUV420sp semi-planar image without any
    // conversions. But if we want a color image （eg: BGRA color format that i

 属性            大小     日期    时间   名称
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     目录           0  2012-12-29 04:28  code-master\
     目录           0  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\
     目录           0  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Android\
     文件         444  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Android\.classpath
     文件        5500  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Android\.cproject
     文件        2972  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Android\.project
     目录           0  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Android\.settings\
     文件         617  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Android\.settings\org.eclipse.jdt.core.prefs
     文件        1349  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Android\AndroidManifest.xml
     目录           0  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Android\jni\
     文件        1538  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Android\jni\Android.mk
     文件          84  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Android\jni\Application.mk
     文件        5308  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Android\jni\jni_part.cpp
     文件         361  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Android\project.properties
     目录           0  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Android\res\
     目录           0  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Android\res\drawable\
     文件        5760  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Android\res\drawable\icon.png
     目录           0  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Android\res\values\
     文件         118  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Android\res\values\strings.xml
     目录           0  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Android\src\
     目录           0  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Android\src\com\
     目录           0  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Android\src\com\Cartoonifier\
     文件        4003  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Android\src\com\Cartoonifier\CartoonifierApp.java
     文件       10271  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Android\src\com\Cartoonifier\CartoonifierView.java
     文件        9315  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Android\src\com\Cartoonifier\CartoonifierViewbase.java
     目录           0  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Desktop\
     文件         290  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Desktop\CMakeLists.txt
     文件       21322  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Desktop\ImageUtils.h
     文件       87458  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Desktop\ImageUtils_0.7.cpp
     文件       13555  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Desktop\cartoon.cpp
     文件        1634  2012-12-29 04:28  code-master\Chapter1_AndroidCartoonifier\Cartoonifier_Desktop\cartoon.h
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