win10 YOLO v2 v3添加中文标签

这个方向各个博客步骤有些乱，多是linux,自己win10 64位,根据自己实现整理。

step1:install ImageMagick

https://www.imagemagick.org/script/download.php
下第一个。

step2:下载ukai.ttc

下载ukai.ttc放在labels文件夹下
https://download.csdn.net/download/qq_35608277/10351225
2积分，没有o积分选项。没有留言发。

step3:make label png

darknet提供了制作png图片的脚本，data/labels/make_labels.py

#下载ukai.ttc的路径
font = 'H:\\deeplearning\\yolov2\\darknet-masterv2\\darknet-master\\build\\darknet\\x64\\data\\labels\\ukai.ttc' # 'futura-normal'

def make_labels(s):
    l = ["车"]
    for word in l:
            os.system("convert -fill black -background white -bordercolor white -border 4  -font %s -pointsize %d label:\"%s\" \"cn_0_%d.png\""%(font,s,word,s/12-1)) #cn_0_0/1/2/3/4/5/6/7.png如果多类自己改为cn_1_%d,,依次输出吧，没有研究出来怎么遍历。。
for i in [12,24,36,48,60,72,84,96]:
    make_labels(i)

在该目录下，shift右键,打开powershell,

python make_labels.py

即可生成图片。

step4.更改模型源代码

修改image.c
https://github.com/PaulChongPeng/darknet/commit/798fe7cc4176d452a83d63eb261d6129e397a521
跟着这个改。

image **load_alphabet()
{
    int i, j;
    const int nsize = 8;
    image **alphabets = calloc(nsize, sizeof(image));
    for(j = 0; j < nsize; ++j){
        alphabets[j] = calloc(128, sizeof(image));
#ifdef CHINESE
         for (i = 0; i <1; i++) {//i=0;i<80;i++  coco 一共八十类//i是类数，这里自己只有一类
            char buff[256];
            sprintf(buff, "data/labels/cn%d_%d.png", i, j);//png 命名cn0_0/1/2/3/4/5/6/7
            alphabets[j][i] = load_image_color(buff, 0, 0);

        }

这里直接把大小固定了

image get_label_chinese(image **characters, int class, int size)
 {
    if (size > 7) size = 7;
    image label = make_empty_image(0, 0, 0);

        image l = characters[3][class];//改尺寸 size class
    image n = tile_images(label, l, -size - 1 + (size + 1) / 2);
    free_image(label);
    label = n;

        image b = border_image(label, label.h*.25);
    free_image(label);
    return b;
    }

不知为什么输出文字描述的地方name[class]是乱码

void draw_detections(image im, int num, float thresh, box *boxes, float **probs, char **names, image **alphabet, int classes)
{
    int i;

    for(i = 0; i < num; ++i){
        int class = max_index(probs[i], classes);
        float prob = probs[i][class];
        if(prob > thresh){

            //// for comparison with OpenCV version of DNN Darknet Yolo v2
            //printf("\n %f, %f, %f, %f, ", boxes[i].x, boxes[i].y, boxes[i].w, boxes[i].h);
            // int k;
            //for (k = 0; k < classes; ++k) {
            //  printf("%f, ", probs[i][k]);
            //}
            //printf("\n");

            int width = im.h * .012;

            if(0){
                width = pow(prob, 1./2.)*10+1;
                alphabet = 0;
            }

            printf("%s: %.0f%%\n",names[class], prob*100);//显示类名：预测概率

改线宽

void draw_detections(image im, int num, float thresh, box *boxes, float **probs, char **names, image **alphabet, int classes)
{
    int i;

    for(i = 0; i < num; ++i){
        int class = max_index(probs[i], classes);
        float prob = probs[i][class];
        if(prob > thresh){

            //// for comparison with OpenCV version of DNN Darknet Yolo v2
            //printf("\n %f, %f, %f, %f, ", boxes[i].x, boxes[i].y, boxes[i].w, boxes[i].h);
            // int k;
            //for (k = 0; k < classes; ++k) {
            //  printf("%f, ", probs[i][k]);
            //}
            //printf("\n");

            int width = im.h * .012;

            if(0){
                width = pow(prob, 1./2.)*10+1;
                alphabet = 0;
            }

            printf("%s: %.0f%%\n",names[class], prob*100);//显示类名：预测概率
            int offset = class*123457 % classes;
            float red = get_color(2,offset,classes);
            float green = get_color(1,offset,classes);
            float blue = get_color(0,offset,classes);
            float rgb[3];

            //width = prob*20+2;

            rgb[0] = red;
            rgb[1] = green;
            rgb[2] = blue;
            box b = boxes[i];

            int left  = (b.x-b.w/2.)*im.w;
            int right = (b.x+b.w/2.)*im.w;
            int top   = (b.y-b.h/2.)*im.h;
            int bot   = (b.y+b.h/2.)*im.h;

            if(left < 0) left = 0;
            if(right > im.w-1) right = im.w-1;
            if(top < 0) top = 0;
            if(bot > im.h-1) bot = im.h-1;

            draw_box_width(im, left, top, right, bot, width/2, red, green, blue);//width=width/2
            if (alphabet) {
#ifdef CHINESE
        image label = get_label_chinese(alphabet, class, (im.h*.03) / 10);
    #else

        image label = get_label(alphabet, names[class], (im.h*.03)/10);
#endif
                draw_label(im, top + width/2, left, label, rgb);//width=width/2

yolov3 class对应的参数改一下，其他类似。
ref
https://blog.csdn.net/hrsstudy/article/details/61671886