Dataset: add READMEs, organize scripts, update .gitignore

- Add README.md to all 16 dataset directories with script references
- Centralize generation scripts under scripts/ with full README
- Update .gitignore to cover all data directories, keep only metadata
- Remove redundant CCPD/.gitignore (parent covers same rules)
- Remove stale scripts/test/ (254MB pipeline residue)
- Fix label parser reference: scripts are authoritative source of truth

CCPD_SPE_GEN/cpp_pipeline/build.ps1

@@ -39,4 +39,4 @@ Write-Host "可执行文件: $buildDir\Release\plate_swap.exe"
 # 使用示例
 Write-Host ""
 Write-Host "用法示例:"
-Write-Host "  .\build\Release\plate_swap.exe --ccpd-dir ./CCPD/CCPD2019/ccpd_base --plate-type police --plate-pool ./output/plate_pool --num 500 --workers 32 --fast"
+Write-Host "  .\build\Release\plate_swap.exe --ccpd-dir ./CCPD/CCPD2019/ccpd_base --plate-type police --plate-pool ./output/plate_pool --num 500 --workers 32"

CCPD_SPE_GEN/cpp_pipeline/gen_plate_pool.py

@@ -49,6 +49,8 @@ from plate_number import (
 
 # 类型配置
 PLATE_TYPES = [
+    ('blue',        'blue',        generate_plate_number_blue),
+    ('green',       'green_car',   lambda: generate_plate_number_blue(length=8)),
     ('police',      'white',       generate_plate_number_white),
     ('army',        'white_army',  generate_plate_number_army),
     ('gangao',      'black',       generate_plate_number_black_gangao),

CCPD_SPE_GEN/cpp_pipeline/main.cpp

@@ -18,7 +18,6 @@ struct Config {
     string plate_pool_dir;
     int num_images = 500;
     unsigned workers = thread::hardware_concurrency();
-    bool fast = false;
     int seed = 42;
     int h_shift = 0, s_scale = 100, v_scale = 100;
 };
@@ -50,7 +49,6 @@ Config parse_args(int argc, char* argv[]) {
         else if (arg == "--num" && i+1 < argc) cfg.num_images = stoi(argv[++i]);
         else if (arg == "--workers" && i+1 < argc) cfg.workers = stoi(argv[++i]);
         else if (arg == "--seed" && i+1 < argc) cfg.seed = stoi(argv[++i]);
-        else if (arg == "--fast") cfg.fast = true;
         else if (arg == "--h-shift" && i+1 < argc) cfg.h_shift = stoi(argv[++i]);
         else if (arg == "--s-scale" && i+1 < argc) cfg.s_scale = stoi(argv[++i]);
         else if (arg == "--v-scale" && i+1 < argc) cfg.v_scale = stoi(argv[++i]);
@@ -103,7 +101,6 @@ int main(int argc, char* argv[]) {
         cerr << "  --plate-pool <dir> Plate pool directory (required)" << endl;
         cerr << "  --num <N>          Number of images (default 500)" << endl;
         cerr << "  --workers <N>      Thread count (default all cores)" << endl;
-        cerr << "  --fast             Fast mode (skip degradation)" << endl;
         return 1;
     }
 
@@ -111,7 +108,6 @@ int main(int argc, char* argv[]) {
     cout << "Type: " << cfg.plate_type << endl;
     cout << "Threads: " << cfg.workers << endl;
     cout << "Target: " << cfg.num_images << " images" << endl;
-    cout << "Fast: " << (cfg.fast ? "yes" : "no") << endl;
 
     if (cfg.plate_pool_dir.empty()) {
         cerr << "[ERROR] --plate-pool is required" << endl;
@@ -153,7 +149,6 @@ int main(int argc, char* argv[]) {
     SwapConfig swap_cfg;
     swap_cfg.plate_type = cfg.plate_type;
     swap_cfg.output_dir = cfg.output_dir;
-    swap_cfg.fast_mode = cfg.fast;
     swap_cfg.h_shift = cfg.h_shift;
     swap_cfg.s_scale = cfg.s_scale;
     swap_cfg.v_scale = cfg.v_scale;

CCPD_SPE_GEN/cpp_pipeline/plate_swap.cpp

@@ -184,6 +184,8 @@ static string bg_color_of(const string& plate_type) {
     if (plate_type == "lingguan_old" || plate_type == "lingguan_new") return "black";
     if (plate_type == "coach") return "yellow";
     if (plate_type == "new_energy") return "green_truck";
+    if (plate_type == "blue") return "blue";
+    if (plate_type == "green") return "green_car";
     return "white";
 }
 
@@ -322,7 +324,7 @@ Mat match_plate_color(const Mat& synthetic, const Mat& orig_roi,
 
     // 白/绿牌
     Scalar color_cast(white_ref[0]/ref_mean, white_ref[1]/ref_mean, white_ref[2]/ref_mean);
-    float strength = (bg_color == "green_truck") ? 1.5f : 1.0f;
+    float strength = (bg_color == "green_truck" || bg_color == "green_car") ? 1.5f : 1.0f;
     Scalar amplified(1.0f + (color_cast[0]-1.0f)*strength, 1.0f+(color_cast[1]-1.0f)*strength, 1.0f+(color_cast[2]-1.0f)*strength);
     amplified[0] = std::clamp((float)amplified[0], 0.85f, 1.15f);
     amplified[1] = std::clamp((float)amplified[1], 0.85f, 1.15f);
@@ -359,7 +361,8 @@ Mat fix_bg_color(const Mat& plate, const string& bg_color,
 
     int h_lo = 0, h_hi = 180;
     if (bg_color == "yellow") { h_lo = 15; h_hi = 50; }
-    else if (bg_color == "green_truck") { h_lo = 40; h_hi = 85; }
+    else if (bg_color == "green_truck" || bg_color == "green_car") { h_lo = 40; h_hi = 85; }
+    else if (bg_color == "blue") { h_lo = 90; h_hi = 130; }
 
     Mat hsv;
     cvtColor(plate, hsv, COLOR_BGR2HSV);
@@ -629,7 +632,7 @@ bool process_single(const string& img_path, const SwapConfig& cfg,
     if (current_w > 10 && abs(target_w - current_w) > 10) {
         float l_ratio = target_w / current_w;
         float min_c = 0.5f, max_c = 1.1f;
-        if (bg_color == "green_truck" || bg_color == "yellow") { min_c = 0.4f; max_c = 1.0f; }
+        if (bg_color == "green_truck" || bg_color == "green_car" || bg_color == "yellow") { min_c = 0.4f; max_c = 1.0f; }
         else if (bg_color == "black" || bg_color == "black_shi") { min_c = 0.3f; max_c = 1.2f; }
         l_ratio = std::clamp(l_ratio, min_c, max_c);
 
@@ -650,38 +653,16 @@ bool process_single(const string& img_path, const SwapConfig& cfg,
     }
 
     // 8. Degradation
-    if (!cfg.fast_mode)
-        matched = degrade_plate(matched);
+    matched = degrade_plate(matched);
 
     // 9-11. Warp + blend + noise
     auto [warped, mask] = warp_plate_back(matched, meta.corners, Size(w_img, h_img));
     Mat blended = feather_blend(img_orig, warped, mask);
     Mat final = match_noise(blended, img_orig, mask);
 
-    // 12. Save with pinyin tags
+    // 12. Save with original Chinese plate number (imwrite_unicode supports UTF-8)
     string stem = fp.stem().string();
-    // Convert Chinese plate markers to ASCII tags
-    string tag = plate_number;
-    // Manual pinyin mapping for common plate characters (UTF-8 byte sequences)
-    // 港=E6B8AF 澳=E6BEB3 警=E8ADA6 使=E4BDBF 领=E9A286 学=E5ADA6
-    struct { const char* utf8; const char* py; } map[] = {
-        {"\xE6\xB8\xAF", "GANG"}, {"\xE6\xBE\xB3", "AO"},
-        {"\xE8\xAD\xA6", "JING"}, {"\xE4\xBD\xBF", "SHI"},
-        {"\xE9\xA2\x86", "LING"}, {"\xE5\xAD\xA6", "XUE"},
-    };
-    for (auto& m : map) {
-        size_t pos = 0;
-        while ((pos = tag.find(m.utf8, pos)) != string::npos) {
-            tag.replace(pos, 3, m.py);
-            pos += strlen(m.py);
-        }
-    }
-    // Remove any remaining non-ASCII
-    string clean;
-    for (char c : tag) {
-        if ((unsigned char)c < 128) clean += c;
-    }
-    string out_name = stem + "__" + cfg.plate_type + "__" + clean + ".jpg";
+    string out_name = stem + "__" + cfg.plate_type + "__" + plate_number + ".jpg";
     string ccpd_subdir = fp.parent_path().filename().string();
     fs::path out_dir = fs::path(cfg.output_dir) / ccpd_subdir / cfg.plate_type;
     fs::create_directories(out_dir);

CCPD_SPE_GEN/cpp_pipeline/plate_swap.hpp

@@ -34,7 +34,6 @@ struct SwapConfig {
     std::string plate_type;
     std::string output_dir;
     int h_shift = 0, s_scale = 100, v_scale = 100;
-    bool fast_mode = false;
 };
 
 // 单张处理 (pre-parsed meta 避免重复解析)