本文整理汇总了Java中org.opencv.core.KeyPoint类的典型用法代码示例。如果您正苦于以下问题：Java KeyPoint类的具体用法？Java KeyPoint怎么用？Java KeyPoint使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
KeyPoint类属于org.opencv.core包，在下文中一共展示了KeyPoint类的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: keypointsToJSON
import org.opencv.core.KeyPoint; //导入依赖的package包/类
public String keypointsToJSON(MatOfKeyPoint kps){
Gson gson = new Gson();
JsonArray jsonArr = new JsonArray();
KeyPoint[] kpsArray = kps.toArray();
for(KeyPoint kp : kpsArray){
JsonObject obj = new JsonObject();
obj.addProperty("class_id", kp.class_id);
obj.addProperty("x", kp.pt.x);
obj.addProperty("y", kp.pt.y);
obj.addProperty("size", kp.size);
obj.addProperty("angle", kp.angle);
obj.addProperty("octave", kp.octave);
obj.addProperty("response", kp.response);
jsonArr.add(obj);
}
return gson.toJson(jsonArr);
}
示例2: Mat_to_vector_KeyPoint
import org.opencv.core.KeyPoint; //导入依赖的package包/类
public static void Mat_to_vector_KeyPoint(Mat m, List<KeyPoint> kps) {
if (kps == null)
throw new java.lang.IllegalArgumentException("Output List can't be null");
int count = m.rows();
if (CvType.CV_64FC(7) != m.type() || m.cols() != 1)
throw new java.lang.IllegalArgumentException(
"CvType.CV_64FC(7) != m.type() || m.cols()!=1\n" + m);
kps.clear();
double[] buff = new double[7 * count];
m.get(0, 0, buff);
for (int i = 0; i < count; i++) {
kps.add(new KeyPoint((float) buff[7 * i], (float) buff[7 * i + 1], (float) buff[7 * i + 2], (float) buff[7 * i + 3],
(float) buff[7 * i + 4], (int) buff[7 * i + 5], (int) buff[7 * i + 6]));
}
}
示例3: fromArray
import org.opencv.core.KeyPoint; //导入依赖的package包/类
public void fromArray(KeyPoint...a) {
if(a==null || a.length==0)
return;
int num = a.length;
alloc(num);
float buff[] = new float[num * _channels];
for(int i=0; i<num; i++) {
KeyPoint kp = a[i];
buff[_channels*i+0] = (float) kp.pt.x;
buff[_channels*i+1] = (float) kp.pt.y;
buff[_channels*i+2] = kp.size;
buff[_channels*i+3] = kp.angle;
buff[_channels*i+4] = kp.response;
buff[_channels*i+5] = kp.octave;
buff[_channels*i+6] = kp.class_id;
}
put(0, 0, buff); //TODO: check ret val!
}
示例4: toArray
import org.opencv.core.KeyPoint; //导入依赖的package包/类
public KeyPoint[] toArray() {
int num = (int) total();
KeyPoint[] a = new KeyPoint[num];
if(num == 0)
return a;
float buff[] = new float[num * _channels];
get(0, 0, buff); //TODO: check ret val!
for(int i=0; i<num; i++)
a[i] = new KeyPoint( buff[_channels*i+0], buff[_channels*i+1], buff[_channels*i+2], buff[_channels*i+3],
buff[_channels*i+4], (int) buff[_channels*i+5], (int) buff[_channels*i+6] );
return a;
}