upd

README.md

@@ -1,10 +1,11 @@
-# go-darknet: Go bindings for Darknet
-
-### This is fork of go-darknet https://github.com/gyonluks/go-darknet applied to FORK of Darknet https://github.com/AlexeyAB/darknet
-
 [![GoDoc](https://godoc.org/github.com/LdDl/go-darknet?status.svg)](https://godoc.org/github.com/LdDl/go-darknet)
 
-go-darknet is a Go package, which uses Cgo to enable Go applications to use YOLO in [Darknet].
+# go-darknet: Go bindings for Darknet
+### go-darknet is a Go package, which uses Cgo to enable Go applications to use YOLO in [Darknet].
+
+#### Since this repository https://github.com/gyonluks/go-darknet  is no longer maintained I decided to move on and make little different bindings for Darknet.
+#### This bindings aren't for [official implementation](https://github.com/pjreddie/darknet) but for [AlexeyAB's fork](https://github.com/AlexeyAB/darknet).
+
 
 ## Table of Contents
 
@@ -16,7 +17,7 @@ go-darknet is a Go package, which uses Cgo to enable Go applications to use YOLO
 
 ## Requirements
 
-For proper codebase please use fork of [darknet](https://github.com/AlexeyAB/darknet). Latest commit I've tested [here](https://github.com/AlexeyAB/darknet/commit/64fb042c63637038671ae9d53c06165599b28912)
+For proper codebase please use fork of [darknet](https://github.com/AlexeyAB/darknet). Latest commit I've tested [here](https://github.com/AlexeyAB/darknet/commit/a234a5022333c930de08f2470184ef4e0c68356e)
 
 In order to use go-darknet, `libdarknet.so` should be available in one of
 the following locations:

example/README.md

@@ -2,33 +2,53 @@
 
 This is an example Go application which uses go-darknet.
 
-## Install
-
-```shell
-go get github.com/LdDl/go-darknet
-go install github.com/LdDl/go-darknet/example
-
-# Alternatively
-go build github.com/LdDl/go-darknet/example
-```
-
-An executable named `example` should be in your `$GOPATH/bin`, if using
-`go install`; otherwise it will be in your current working directory (`$PWD`),
-if using `go build`.
 
 ## Run
 
+Navigate to example folder:
+
 ```shell
-$GOPATH/bin/example
+cd $GOPATH/github.com/LdDl/go-darknet/example
 ```
-or
+
-```go
+Download dataset (sample of image, coco.names, yolov3.cfg, yolov3.weights).
-go run main.go -configFile=yolov3-320.cfg -dataConfigFile=coco.data -imageFile=sample.jpg -weightsFile=yolov3.weights
+```shell
+./download_data.sh
+```
+Note: you don't need *coco.data* file anymore, because script below does insert *coco.names* into 'names' filed in *yolov3.cfg* file (so AlexeyAB's fork can deal with it properly)
+So last rows in yolov3.cfg file will look like:
+```bash
+......
+[yolo]
+mask = 0,1,2
+anchors = 10,13,  16,30,  33,23,  30,61,  62,45,  59,119,  116,90,  156,198,  373,326
+classes=80
+num=9
+jitter=.3
+ignore_thresh = .7
+truth_thresh = 1
+random=1
+names = coco.names # this is path to coco.names file
 ```
-Please ensure that `libdarknet.so` is in your `$LD_LIBRARY_PATH`.
 
-## Notes
+Build and run program
+```
+go build main.go && ./main --configFile=yolov3.cfg --weightsFile=yolov3.weights --imageFile=sample.jpg
+```
 
-Note that the bounding boxes' values are ratios. To get the actual values, use
+Output should be something like this:
-the ratios and multiply with either the image's width or height, depending on
+```shell
-which ratio is used.
+truck (7): 49.5197% | start point: (0,136) | end point: (85, 311)
+car (2): 36.3747% | start point: (95,152) | end point: (186, 283)
+truck (7): 48.4384% | start point: (95,152) | end point: (186, 283)
+truck (7): 45.6590% | start point: (694,178) | end point: (798, 310)
+car (2): 76.8379% | start point: (1,145) | end point: (84, 324)
+truck (7): 25.5731% | start point: (107,89) | end point: (215, 263)
+car (2): 99.8783% | start point: (511,185) | end point: (748, 328)
+car (2): 99.8194% | start point: (261,189) | end point: (427, 322)
+car (2): 99.6408% | start point: (426,197) | end point: (539, 311)
+car (2): 74.5610% | start point: (692,186) | end point: (796, 316)
+car (2): 72.8053% | start point: (388,206) | end point: (437, 276)
+bicycle (1): 72.2932% | start point: (178,270) | end point: (268, 406)
+person (0): 97.3026% | start point: (143,135) | end point: (268, 343)
+```

example/main.go

@@ -7,9 +7,11 @@ import (
 	"image"
 	"image/jpeg"
 	"log"
+	"math"
 	"os"
 
 	darknet "github.com/LdDl/go-darknet"
+	"github.com/disintegration/imaging"
 )
 
 var configFile = flag.String("configFile", "",
@@ -78,6 +80,16 @@ func main() {
 				bBox.StartPoint.X, bBox.StartPoint.Y,
 				bBox.EndPoint.X, bBox.EndPoint.Y,
 			)
+
+			// Uncomment code below if you want save cropped objects to files
+			// minX, minY := float64(bBox.StartPoint.X), float64(bBox.StartPoint.Y)
+			// maxX, maxY := float64(bBox.EndPoint.X), float64(bBox.EndPoint.Y)
+			// rect := image.Rect(round(minX), round(minY), round(maxX), round(maxY))
+			// err := saveToFile(src, rect, fmt.Sprintf("crop_%d.jpeg", i))
+			// if err != nil {
+			// 	fmt.Println(err)
+			// 	return
+			// }
 		}
 	}
 }
@@ -87,3 +99,24 @@ func imageToBytes(img image.Image) ([]byte, error) {
 	err := jpeg.Encode(buf, img, nil)
 	return buf.Bytes(), err
 }
+
+func round(v float64) int {
+	if v >= 0 {
+		return int(math.Floor(v + 0.5))
+	}
+	return int(math.Ceil(v - 0.5))
+}
+
+func saveToFile(imgSrc image.Image, bbox image.Rectangle, fname string) error {
+	rectcropimg := imaging.Crop(imgSrc, bbox)
+	f, err := os.Create(fname)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	err = jpeg.Encode(f, rectcropimg, nil)
+	if err != nil {
+		return err
+	}
+	return nil
+}

network.c

@@ -15,7 +15,7 @@ struct network_box_result perform_network_detect(network *n, image *img, int cla
     }
     struct network_box_result result = { NULL };
     float *X = sized.data;
-    network_predict_ptr(n, X);
+    network_predict(*n, X);
     int nboxes = 0;
     detection *dets = get_network_boxes(n, img->w, img->h, thresh, hier_thresh, 0, 1, &nboxes, letter_box);
     result.detections = get_network_boxes(n, img->w, img->h, thresh, hier_thresh, 0, 1, &result.detections_len, letter_box);