Upload emotion.py

emotion.py

@@ -0,0 +1,739 @@
+import time
+from dataclasses import dataclass, field
+from typing import Optional, Dict, Tuple, List
+
+import gradio as gr
+import numpy as np
+from PIL import Image
+
+from deepface import DeepFace
+
+
+# =========================
+# 參數（可微調）
+# =========================
+ANALYZE_EVERY_SEC = 0.8
+DOWNSAMPLE_W = 720
+EMA_ALPHA = 0.45
+CONF_TH = 40.0
+SWITCH_CONFIRM_SEC = 2.5
+IOU_TH = 0.25
+
+DETECTOR_BACKEND = "mtcnn"     # 想快一點可改 "opencv"
+ALIGN_FACE = True
+
+
+# =========================
+# 情緒中文 + 分數映射（7 -> 5）
+# =========================
+EMO_ZH = {
+    "angry": "生氣",
+    "disgust": "厭惡",
+    "fear": "害怕",
+    "happy": "開心",
+    "sad": "難過",
+    "surprise": "驚訝",
+    "neutral": "平靜",
+    "unknown": "未知",
+}
+
+# 你要的：把 7 種情緒塞進 5 分心情分數
+EMO_TO_SCORE = {
+    "angry": 1,
+    "disgust": 1,
+    "fear": 1,
+    "sad": 2,
+    "neutral": 3,
+    "surprise": 4,
+    "happy": 5,
+    "unknown": 3,
+}
+
+# ### [整合需求 新增] ###
+# 為了讓主程式 (app.py) 可以呼叫這個轉換邏輯，將其包裝成函式
+def get_emotion_score(emo: str) -> int:
+    return EMO_TO_SCORE.get(emo, 3)
+# ######################
+
+SCORE_LABELS = {
+    1: "1（心情差）",
+    2: "2（不太好）",
+    3: "3（普通）",
+    4: "4（不錯）",
+    5: "5（超棒）",
+}
+SCORE_CHOICES = [SCORE_LABELS[i] for i in [1, 2, 3, 4, 5]]
+
+
+# =========================
+# 狀態
+# =========================
+@dataclass
+class AppState:
+    mode: str = "攝影機辨識"
+
+    running: bool = True
+    finished: bool = False
+    last_analyze_t: float = 0.0
+
+    # tracking
+    track_bbox: Optional[Tuple[int, int, int, int]] = None
+
+    # smoothing
+    ema_scores: Optional[np.ndarray] = None
+    emo_keys: List[str] = field(default_factory=list)
+
+    # stable/candidate
+    stable_emo: str = "unknown"
+    candidate_emo: Optional[str] = None
+    candidate_since: Optional[float] = None
+
+    # final
+    final_emo: Optional[str] = None
+    final_conf: Optional[float] = None
+
+    # ### [整合需求 新增] ###
+    # 用來儲存最後計算出的整數分數 (1~5)，讓外部程式容易讀取
+    final_score: int = 3  
+    # ######################
+
+
+# =========================
+# UI HTML
+# =========================
+def _hint_html(msg: str) -> str:
+    return f"""
+    <div style="border-radius:14px;padding:14px;border:1px dashed #DADADA;background:#FAFAFA;color:#111;">
+      {msg}
+    </div>
+    """
+
+
+def _camera_hint_before_start() -> str:
+    return _hint_html(
+        "請先按「Click to access webcam / 允許」開啟攝影機；"
+        "接著，請按「錄製（Record）」開始。"
+    )
+
+
+def _camera_hint_done() -> str:
+    return _hint_html("已完成辨識，可按「重新攝影機辨識」再次進行辨識。")
+
+
+def _camera_hint_stopped() -> str:
+    return _hint_html("已停止辨識。可按「重新攝影機辨識」再試一次。")
+
+
+def _upload_hint_before() -> str:
+    return _hint_html("請上傳一張清楚的臉部照片（臉越大越準）。")
+
+
+def _upload_hint_done() -> str:
+    return _hint_html("已完成圖片辨識，可按「重新上傳圖片辨識」再次辨識。")
+
+
+def _upload_hint_stopped() -> str:
+    return _hint_html("已停止圖片辨識。可按「重新上傳圖片辨識」再試一次。")
+
+
+def _result_card_html(emo_key: str, conf: Optional[float]) -> str:
+    zh = EMO_ZH.get(emo_key, emo_key)
+    score = EMO_TO_SCORE.get(emo_key, 3)
+    conf_txt = "" if conf is None else f"{conf:.1f}%"
+    score_desc = SCORE_LABELS[score].split("（")[1].rstrip("）")
+
+    # ✅ 結果字體用黑色，避免你說的灰字看不清楚
+    return f"""
+    <div style="
+        border-radius:16px;
+        padding:20px;
+        border:1px solid #E6E6E6;
+        background:#FFFFFF;
+        color:#111;
+    ">
+      <div style="font-size:14px;color:#444;margin-bottom:8px;">
+        辨識結果
+      </div>
+
+      <div style="
+        font-size:42px;
+        font-weight:800;
+        line-height:1.1;
+        margin-bottom:14px;
+        color:#000;
+      ">
+        {zh}
+      </div>
+
+      <div style="font-size:16px;color:#111;margin-bottom:6px;">
+        心情分數：<b>{score}</b>（{score_desc}）
+      </div>
+
+      <div style="font-size:14px;color:#111;">
+        信心值：{conf_txt}
+      </div>
+    </div>
+    """
+
+
+def _score_radio_value(score: int) -> str:
+    score = int(score)
+    score = min(5, max(1, score))
+    return SCORE_LABELS[score]
+
+
+def _downsample_rgb(frame: np.ndarray, target_w: int) -> np.ndarray:
+    if frame is None:
+        return None
+    h, w = frame.shape[:2]
+    if w <= target_w:
+        return frame
+    scale = target_w / w
+    new_h = max(1, int(h * scale))
+    img = Image.fromarray(frame)
+    img = img.resize((target_w, new_h))
+    return np.array(img)
+
+
+def _iou(a: Tuple[int, int, int, int], b: Tuple[int, int, int, int]) -> float:
+    ax, ay, aw, ah = a
+    bx, by, bw, bh = b
+    ax2, ay2 = ax + aw, ay + ah
+    bx2, by2 = bx + bw, by + bh
+
+    ix1, iy1 = max(ax, bx), max(ay, by)
+    ix2, iy2 = min(ax2, bx2), min(ay2, by2)
+    iw, ih = max(0, ix2 - ix1), max(0, iy2 - iy1)
+    inter = iw * ih
+    if inter <= 0:
+        return 0.0
+    union = aw * ah + bw * bh - inter
+    return inter / max(1e-6, union)
+
+
+def _pick_face_by_tracking(
+    faces: List[Dict],
+    prev_bbox: Optional[Tuple[int, int, int, int]]
+) -> Tuple[Optional[Dict], Optional[Tuple[int, int, int, int]]]:
+    if not faces:
+        return None, None
+
+    cand = []
+    for f in faces:
+        fa = f.get("facial_area", {}) or {}
+        x = int(fa.get("x", 0) or 0)
+        y = int(fa.get("y", 0) or 0)
+        w = int(fa.get("w", 0) or 0)
+        h = int(fa.get("h", 0) or 0)
+        if w > 0 and h > 0 and f.get("face") is not None:
+            cand.append((f, (x, y, w, h), w * h))
+
+    if not cand:
+        return None, None
+
+    if prev_bbox is not None:
+        best = None
+        best_i = 0.0
+        for f, bb, area in cand:
+            i = _iou(prev_bbox, bb)
+            if i > best_i:
+                best_i = i
+                best = (f, bb)
+        if best is not None and best_i >= IOU_TH:
+            return best[0], best[1]
+
+    cand.sort(key=lambda x: x[2], reverse=True)
+    return cand[0][0], cand[0][1]
+
+
+def _reset_state_for_camera(st: AppState) -> AppState:
+    st.running = True
+    st.finished = False
+    st.last_analyze_t = 0.0
+    st.track_bbox = None
+    st.ema_scores = None
+    st.emo_keys = []
+    st.stable_emo = "unknown"
+    st.candidate_emo = None
+    st.candidate_since = None
+    st.final_emo = None
+    st.final_conf = None
+    
+    # ### [整合需求 新增] ###
+    st.final_score = 3
+    # ######################
+    
+    return st
+
+
+def _reset_state_for_upload(st: AppState) -> AppState:
+    st.running = False
+    st.finished = False
+    st.last_analyze_t = 0.0
+    st.track_bbox = None
+    st.ema_scores = None
+    st.emo_keys = []
+    st.stable_emo = "unknown"
+    st.candidate_emo = None
+    st.candidate_since = None
+    st.final_emo = None
+    st.final_conf = None
+    
+    # ### [整合需求 新增] ###
+    st.final_score = 3
+    # ######################
+
+    return st
+
+
+# =========================
+# Camera streaming
+# =========================
+def on_stream(frame_rgb: np.ndarray, st: AppState):
+    # 上傳模式不走攝影機流程
+    if st.mode != "攝影機辨識":
+        return (
+            gr.update(),  # cam
+            gr.update(),  # result
+            gr.update(),  # mood
+            gr.update(value=_upload_hint_before()),
+            st,
+            gr.update(value="重新上傳圖片辨識"),
+        )
+
+    # ✅ 完成/停止狀態：不要再顯示「Click to access…/Record…」
+    if st.finished or (not st.running):
+        cam_visible = False
+
+        if st.final_emo:
+            result_html = _result_card_html(st.final_emo, st.final_conf)
+            mood_val = _score_radio_value(EMO_TO_SCORE.get(st.final_emo, 3))
+            hint_html = _camera_hint_done()
+        else:
+            result_html = _hint_html("尚未完成辨識。")
+            mood_val = _score_radio_value(3)
+            hint_html = _camera_hint_stopped()
+
+        return (
+            gr.update(visible=cam_visible),
+            gr.update(value=result_html),
+            gr.update(value=mood_val),
+            gr.update(value=hint_html),
+            st,
+            gr.update(value="重新攝影機辨識"),
+        )
+
+    # ✅ 還沒拿到 frame：提示使用者按允許/Record（而不是亂寫已開啟）
+    if frame_rgb is None:
+        return (
+            gr.update(visible=True),
+            gr.update(value=_hint_html("等待影像…（尚未開始串流）")),
+            gr.update(value=_score_radio_value(3)),
+            gr.update(value=_camera_hint_before_start()),
+            st,
+            gr.update(value="重新攝影機辨識"),
+        )
+
+    now = time.time()
+    if now - st.last_analyze_t < ANALYZE_EVERY_SEC:
+        show = st.stable_emo or "unknown"
+        return (
+            gr.update(visible=True),
+            gr.update(value=_result_card_html(show, st.final_conf)),
+            gr.update(value=_score_radio_value(EMO_TO_SCORE.get(show, 3))),
+            gr.update(value=_camera_hint_before_start()),
+            st,
+            gr.update(value="重新攝影機辨識"),
+        )
+
+    st.last_analyze_t = now
+
+    small = _downsample_rgb(frame_rgb, DOWNSAMPLE_W)
+
+    faces = DeepFace.extract_faces(
+        img_path=small,
+        detector_backend=DETECTOR_BACKEND,
+        enforce_detection=False,
+        align=ALIGN_FACE,
+    )
+    pick, bbox = _pick_face_by_tracking(faces, st.track_bbox)
+    if pick is None or bbox is None or pick.get("face") is None:
+        show = st.stable_emo or "unknown"
+        return (
+            gr.update(visible=True),
+            gr.update(value=_result_card_html(show, st.final_conf)),
+            gr.update(value=_score_radio_value(EMO_TO_SCORE.get(show, 3))),
+            gr.update(value=_camera_hint_before_start()),
+            st,
+            gr.update(value="重新攝影機辨識"),
+        )
+
+    st.track_bbox = bbox
+    face = pick["face"]
+    if face.dtype != np.uint8:
+        face = np.clip(face * 255.0, 0, 255).astype(np.uint8)
+
+    result = DeepFace.analyze(
+        img_path=face,
+        actions=["emotion"],
+        enforce_detection=False,
+    )
+    if isinstance(result, list):
+        result = result[0]
+    emo_dict = result.get("emotion", None)
+
+    if not isinstance(emo_dict, dict) or len(emo_dict) == 0:
+        show = st.stable_emo or "unknown"
+        return (
+            gr.update(visible=True),
+            gr.update(value=_result_card_html(show, st.final_conf)),
+            gr.update(value=_score_radio_value(EMO_TO_SCORE.get(show, 3))),
+            gr.update(value=_camera_hint_before_start()),
+            st,
+            gr.update(value="重新攝影機辨識"),
+        )
+
+    top_key = max(emo_dict, key=lambda k: float(emo_dict[k]))
+    top_conf = float(emo_dict[top_key])
+
+    if top_conf < CONF_TH:
+        show = st.stable_emo or "unknown"
+        return (
+            gr.update(visible=True),
+            gr.update(value=_result_card_html(show, st.final_conf)),
+            gr.update(value=_score_radio_value(EMO_TO_SCORE.get(show, 3))),
+            gr.update(value=_camera_hint_before_start()),
+            st,
+            gr.update(value="重新攝影機辨識"),
+        )
+
+    keys = list(emo_dict.keys())
+    vec = np.array([float(emo_dict[k]) for k in keys], dtype=np.float32)
+
+    if st.ema_scores is None or st.emo_keys != keys:
+        st.ema_scores = vec
+        st.emo_keys = keys
+    else:
+        st.ema_scores = EMA_ALPHA * vec + (1.0 - EMA_ALPHA) * st.ema_scores
+
+    stable_idx = int(np.argmax(st.ema_scores))
+    stable_key = st.emo_keys[stable_idx]
+    st.stable_emo = stable_key
+
+    # 延遲確認
+    if st.candidate_emo != stable_key:
+        st.candidate_emo = stable_key
+        st.candidate_since = now
+    else:
+        if st.candidate_since is None:
+            st.candidate_since = now
+
+    confirmed = (
+        st.candidate_since is not None
+        and (now - st.candidate_since) >= SWITCH_CONFIRM_SEC
+    )
+
+    if confirmed and st.final_emo is None:
+        st.final_emo = stable_key
+        st.final_conf = top_conf
+        
+        # ### [整合需求 新增] ###
+        # 在辨識完成的瞬間，順便存入整數分數
+        st.final_score = EMO_TO_SCORE.get(stable_key, 3)
+        # ######################
+
+        st.running = False
+        st.finished = True
+
+        return (
+            gr.update(visible=False),
+            gr.update(value=_result_card_html(stable_key, top_conf)),
+            gr.update(value=_score_radio_value(EMO_TO_SCORE.get(stable_key, 3))),
+            gr.update(value=_camera_hint_done()),
+            st,
+            gr.update(value="重新攝影機辨識"),
+        )
+
+    return (
+        gr.update(visible=True),
+        gr.update(value=_result_card_html(stable_key, top_conf)),
+        gr.update(value=_score_radio_value(EMO_TO_SCORE.get(stable_key, 3))),
+        gr.update(value=_camera_hint_before_start()),
+        st,
+        gr.update(value="重新攝影機辨識"),
+    )
+
+
+# =========================
+# Upload image
+# =========================
+def on_upload(img: np.ndarray, st: AppState):
+    if st.mode != "上傳圖片辨識":
+        return (
+            gr.update(), gr.update(), st,
+            gr.update(value=_camera_hint_before_start()),
+            gr.update(value="重新攝影機辨識")
+        )
+
+    st = _reset_state_for_upload(st)
+
+    if img is None:
+        return (
+            gr.update(value=_upload_hint_before()),
+            gr.update(value=_score_radio_value(3)),
+            st,
+            gr.update(value=_upload_hint_before()),
+            gr.update(value="重新上傳圖片辨識"),
+        )
+
+    small = _downsample_rgb(img, DOWNSAMPLE_W)
+    faces = DeepFace.extract_faces(
+        img_path=small,
+        detector_backend=DETECTOR_BACKEND,
+        enforce_detection=False,
+        align=ALIGN_FACE,
+    )
+    pick, bbox = _pick_face_by_tracking(faces, None)
+    if pick is None or pick.get("face") is None:
+        return (
+            gr.update(value=_hint_html("沒有偵測到人臉，請換一張更清楚、臉更大的照片。")),
+            gr.update(value=_score_radio_value(3)),
+            st,
+            gr.update(value=_upload_hint_before()),
+            gr.update(value="重新上傳圖片辨識"),
+        )
+
+    face = pick["face"]
+    if face.dtype != np.uint8:
+        face = np.clip(face * 255.0, 0, 255).astype(np.uint8)
+
+    result = DeepFace.analyze(
+        img_path=face,
+        actions=["emotion"],
+        enforce_detection=False,
+    )
+    if isinstance(result, list):
+        result = result[0]
+    emo_dict = result.get("emotion", None)
+    if not isinstance(emo_dict, dict) or len(emo_dict) == 0:
+        return (
+            gr.update(value=_hint_html("辨識失敗，請換一張照片再試一次。")),
+            gr.update(value=_score_radio_value(3)),
+            st,
+            gr.update(value=_upload_hint_before()),
+            gr.update(value="重新上傳圖片辨識"),
+        )
+
+    top_key = max(emo_dict, key=lambda k: float(emo_dict[k]))
+    top_conf = float(emo_dict[top_key])
+
+    st.final_emo = top_key
+    st.final_conf = top_conf
+    
+    # ### [整合需求 新增] ###
+    # 圖片辨識完成，存入分數
+    st.final_score = EMO_TO_SCORE.get(top_key, 3)
+    # ######################
+
+    st.finished = True
+
+    return (
+        gr.update(value=_result_card_html(top_key, top_conf)),
+        gr.update(value=_score_radio_value(EMO_TO_SCORE.get(top_key, 3))),
+        st,
+        gr.update(value=_upload_hint_done()),
+        gr.update(value="重新上傳圖片辨識"),
+    )
+
+
+# =========================
+# Mode / Buttons
+# =========================
+def on_mode_change(mode: str, st: AppState):
+    st.mode = mode
+
+    if mode == "攝影機辨識":
+        st = _reset_state_for_camera(st)
+        return (
+            gr.update(visible=True),                  # cam
+            gr.update(visible=False, value=None),     # upload
+            gr.update(value=_hint_html("等待影像…（尚未開始串流）")),  # result
+            gr.update(value=_score_radio_value(3)),   # mood
+            gr.update(value=_camera_hint_before_start()),
+            st,
+            gr.update(value="重新攝影機辨識"),
+        )
+    else:
+        st = _reset_state_for_upload(st)
+        return (
+            gr.update(visible=False),                 # cam
+            gr.update(visible=True, value=None),      # upload
+            gr.update(value=_upload_hint_before()),   # result
+            gr.update(value=_score_radio_value(3)),   # mood
+            gr.update(value=_upload_hint_before()),   # hint
+            st,
+            gr.update(value="重新上傳圖片辨識"),
+        )
+
+
+def on_restart(st: AppState):
+    if st.mode == "攝影機辨識":
+        st = _reset_state_for_camera(st)
+        return (
+            gr.update(visible=True),                               # cam
+            gr.update(value=_hint_html("等待影像…（尚未開始串流）")),  # result
+            gr.update(value=_score_radio_value(3)),                # mood
+            gr.update(value=_camera_hint_before_start()),          # hint
+            st,
+            gr.update(value="重新攝影機辨識"),                      # btn label
+            gr.update(),  # upload
+        )
+    else:
+        st = _reset_state_for_upload(st)
+        return (
+            gr.update(),                               # cam
+            gr.update(value=_upload_hint_before()),     # result
+            gr.update(value=_score_radio_value(3)),     # mood
+            gr.update(value=_upload_hint_before()),     # hint
+            st,
+            gr.update(value="重新上傳圖片辨識"),
+            gr.update(value=None),                      # upload clear
+        )
+
+
+def on_stop(st: AppState):
+    if st.mode == "攝影機辨識":
+        st.running = False
+        st.finished = True
+        # ✅ 停止後也不要再顯示 Click/Record 提示，改成「已停止/可重新」
+        if st.final_emo is None:
+            return (
+                gr.update(visible=False),
+                gr.update(value=_hint_html("已停止辨識。")),
+                gr.update(value=_score_radio_value(3)),
+                gr.update(value=_camera_hint_stopped()),
+                st,
+                gr.update(value="重新攝影機辨識"),
+                gr.update(),
+            )
+
+        return (
+            gr.update(visible=False),
+            gr.update(value=_result_card_html(st.final_emo, st.final_conf)),
+            gr.update(value=_score_radio_value(EMO_TO_SCORE.get(st.final_emo, 3))),
+            gr.update(value=_camera_hint_done()),
+            st,
+            gr.update(value="重新攝影機辨識"),
+            gr.update(),
+        )
+
+    # 上傳模式：停止 → 回到可重新上傳
+    st = _reset_state_for_upload(st)
+    return (
+        gr.update(),
+        gr.update(value=_hint_html("已停止圖片辨識。")),
+        gr.update(value=_score_radio_value(3)),
+        gr.update(value=_upload_hint_stopped()),
+        st,
+        gr.update(value="重新上傳圖片辨識"),
+        gr.update(value=None),
+    )
+
+
+# =========================
+# Gradio UI
+# =========================
+# ### [整合需求] 下方的 UI Block 可以保留，
+# 之後整合進 app.py 時，app.py 會只 import 上面的函式，不會執行這裡。
+# 這樣隊友還是可以單獨執行這個檔案來測試。
+css = """
+#app_container { max-width: 960px; margin: 0 auto; }
+.gradio-container { background: #f1f5f9 !important; }
+"""
+
+# 為了方便 app.py 整合，我們把 UI 宣告包���一個函式 render_ui (或是 create_demo)
+# 但為了不改動隊友原本的結構，我們保留下面的寫法，但加上 if __name__ == "__main__"
+# 這樣 app.py import 時不會自動跑出介面
+
+if __name__ == "__main__":
+    with gr.Blocks(title="Emotion Detector") as demo:
+        st = gr.State(AppState())
+
+        gr.Markdown("## 情緒辨識")
+        gr.Markdown("請先選擇辨識方式：**攝影機** 或 **上傳圖片**。")
+
+        mode = gr.Radio(
+            choices=["攝影機辨識", "上傳圖片辨識"],
+            value="攝影機辨識",
+            label="辨識方式",
+        )
+
+        hint = gr.HTML(_camera_hint_before_start())
+
+        cam = gr.Image(
+            sources=["webcam"],
+            streaming=True,
+            type="numpy",
+            label="攝影機",
+            visible=True,
+        )
+
+        upload = gr.Image(
+            sources=["upload"],
+            type="numpy",
+            label="上傳圖片",
+            visible=False,
+        )
+
+        with gr.Row():
+            btn_restart = gr.Button("重新攝影機辨識", variant="primary")
+            btn_stop = gr.Button("停止", variant="secondary")
+
+        # ✅ 你要的排序：結果在上、分數在下
+        gr.Markdown("### 辨識結果")
+        result = gr.HTML(_hint_html("等待影像…（尚未開始串流）"))
+
+        gr.Markdown("### 心情分數（系統判定）")
+        mood = gr.Radio(
+            choices=SCORE_CHOICES,
+            value=_score_radio_value(3),
+            label="心情分數",
+            interactive=False,
+        )
+
+        mode.change(
+            fn=on_mode_change,
+            inputs=[mode, st],
+            outputs=[cam, upload, result, mood, hint, st, btn_restart],
+            show_progress="minimal",
+        )
+
+        cam.stream(
+            fn=on_stream,
+            inputs=[cam, st],
+            outputs=[cam, result, mood, hint, st, btn_restart],
+            show_progress="minimal",
+        )
+
+        upload.change(
+            fn=on_upload,
+            inputs=[upload, st],
+            outputs=[result, mood, st, hint, btn_restart],
+            show_progress="minimal",
+        )
+
+        btn_restart.click(
+            fn=on_restart,
+            inputs=[st],
+            outputs=[cam, result, mood, hint, st, btn_restart, upload],
+            show_progress="minimal",
+        )
+
+        btn_stop.click(
+            fn=on_stop,
+            inputs=[st],
+            outputs=[cam, result, mood, hint, st, btn_restart, upload],
+            show_progress="minimal",
+        )
+
+    demo.launch(server_name="0.0.0.0", server_port=7860, share=False)