Created
August 24, 2011 08:11
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jni format opencv
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#include <jni.h> | |
#include <stdio.h> | |
#include <stdlib.h> | |
#include <opencv/cv.h> | |
#include <opencv/highgui.h> | |
extern "C"{ | |
JNIEXPORT void JNICALL Java_com_test_opencv_Opencvtest_setimage | |
(JNIEnv *env, jobject obj) { | |
IplImage* imgIn = cvLoadImage("/mnt/sdcard/c.jpg"); | |
if(!imgIn){ | |
}else{ | |
IplImage* imgOut = cvCreateImage(cvGetSize(imgIn),IPL_DEPTH_8U,3); | |
cvSmooth(imgIn,imgOut); | |
const char* result1 = "/mnt/sdcard/c_1.jpg"; | |
cvSaveImage(result1,imgOut); | |
IplImage* imgGray = cvCreateImage(cvGetSize(imgIn),IPL_DEPTH_8U,1); | |
cvCvtColor(imgIn,imgGray,CV_BGR2GRAY); | |
const char* result2 = "/mnt/sdcard/c_2.jpg"; | |
cvSaveImage(result2,imgGray); | |
IplImage* imgThr = cvCreateImage(cvGetSize(imgIn),IPL_DEPTH_8U,1); | |
cvThreshold(imgGray,imgThr,128,1,CV_THRESH_BINARY); | |
int height = imgThr->height; | |
int width = imgThr->width; | |
int step = imgThr->widthStep/sizeof(uchar); | |
uchar* data = (uchar *)imgThr->imageData; | |
for(int i=0;i<height;i++){ | |
for(int j=0;j<width;j++){ | |
if(data[i*step+j]==1){ | |
data[i*step+j]=255; | |
} | |
} | |
} | |
const char* result3 = "/mnt/sdcard/c_3.jpg"; | |
cvSaveImage(result3,imgThr); | |
cvReleaseImage(&imgIn); | |
cvReleaseImage(&imgOut); | |
cvReleaseImage(&imgGray); | |
cvReleaseImage(&imgThr); | |
} | |
} | |
} |
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