/**
* must release array data after the use of it
*/
static jintArray useImage(JNIEnv* env, jobject jimg, ImageType& img,
jint** pdata) {
int w = 0;
int h = 0;
jintArray jdata = intImageArray(env, jimg, &w, &h);
*pdata = lockArray(data, Int);
img.wrappingOf(*pdata, w, h);
return jdata;
}
