Java Support for darknet.h

[peterdn1]

I have created a java lib using jna, it was a bit painful to get working.

Any interest in adding java support in addition to the current python support?

package darknet;

import com.sun.jna.Library;
import com.sun.jna.Pointer;
import com.sun.jna.ptr.FloatByReference;
import com.sun.jna.ptr.IntByReference;
import com.sun.jna.ptr.LongByReference;
import com.sun.jna.ptr.PointerByReference;

public interface DarknetLib extends Library, YoloV2_Lib {
// parser.c
network load_network(String configurationFilename, String weightsFilename, int clear, int batch);// # batch size = 1
network load_network(String cfg,String weights, int clear);
network load_network_custom(String cfg,String weights, int clear, int batch);
// box.h
void do_nms_sort(detection dets, int total, int classes, float thresh);
void do_nms_obj(detection dets, int total, int classes, float thresh);
void diounms_sort(detection dets, int total, int classes, float thresh, int nms_kind, float beta1);
// network.h
float network_predict(network net, FloatByReference input);
float network_predict_ptr(network net, FloatByReference input);
Pointer get_network_boxes(network net, int w, int h, float thresh, float hier,IntByReference map, int relative, IntByReference num, int letter);
void free_detections(Pointer dets, int n);
void fuse_conv_batchnorm(network net);
void calculate_binary_weights(network net);
String detection_to_json(detection dets, int nboxes, int classes,String[] names,long frame_id, String filename);
detection make_network_boxes(network net, float thresh, IntByReference num);
void reset_rnn(network net);
float network_predict_image(network net, image im);
float network_predict_image_letterbox(network net, image im);
float validate_detector_map(String datacfg,String cfgfile,String weightfile, float thresh_calc_avg_iou, float iou_thresh,int map_points, int letter_box, network existing_net);
void train_detector(String datacfg,String cfgfile, String weightfile, IntByReference gpus, int ngpus, int clear, int dont_show, int calc_map, int mjpeg_port, int show_imgs);
void test_detector(String datacfg,String cfgfile, String weightfile, String filename, float thresh, float hier_thresh, int dont_show, int ext_output, int save_labels, String outfile, int letter_box);
int network_width(network net);
int network_height(network net);
void optimize_picture(network net, image orig, int max_layer, float scale, float rate, float thresh, int norm);
// image.h
image resize_image(image im, int w, int h);
void copy_image_from_bytes(image im, Pointer pdata);
image letterbox_image(image im, int w, int h);
void rgbgr_image(image im);
image make_image(int w, int h, int c);
image load_image_color(String filename, int w, int h);
void free_image(image m);
// layer.h
void free_layer(layer lay);
// data.c
void free_data(data d);
void load_thread(Pointer ptr);
// dark_cuda.h
void cuda_pull_array(FloatByReference x_gpu, FloatByReference x, LongByReference n);
void cuda_pull_array_async(FloatByReference x_gpu, FloatByReference x, LongByReference n);
void cuda_set_device(int n);
void cuda_get_context();
// utils.h
void free_ptrs(PointerByReference ptrs, int n);
void top_k(FloatByReference a, int n, int k, IntByReference index);
// tree.h
tree read_tree(String filename);
// option_list.h
metadata get_metadata(String file);
// http_stream.h
void delete_json_sender();
void send_json_custom(byte[] send_buf, int port, int timeout);
double get_time_point();
void start_timer();
void stop_timer();
double get_time();
void stop_timer_and_show();
void stop_timer_and_show_name(String name);
void show_total_time();
// gemm.h
void init_cpu();
}

[AlexeyAB]

@peterdn1 Hi,

Yes. If you can add Java-wrapper + short-Java-example(1 file) it would be nice.

There is also C#-wrapper, but I do not follow its relevance to the Darknet-library.
It was done by @tinohager
https://github.com/AlexeyAB/darknet/blob/master/build/darknet/YoloWrapper.cs

[tinohager]

@AlexeyAB & @peterdn1 Hi

The project use the darknet library and is popular.
https://github.com/AlturosDestinations/Alturos.Yolo

[peterdn1]

Added a short example App.java and some test cases as well AppTest.java.
#4560