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Update app.py
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app.py
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@@ -1,20 +1,72 @@
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import cv2
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import gradio as gr
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import numpy as np
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import tensorflow as tf
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from scipy import ndimage
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#
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except Exception as e:
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print(f"❌ خطأ: لم يتم العثور على ملف النموذج '{MODEL_PATH}'. التأكد من وجود الملف بجانب app.py")
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#
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def center_image(img):
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cy, cx = ndimage.center_of_mass(img)
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rows, cols = img.shape
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@@ -24,63 +76,57 @@ def center_image(img):
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return cv2.warpAffine(img, M, (cols, rows))
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#
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def predict(image):
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if image is None:
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return None, {"error": "لم يتم الرسم"}
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# استخراج الصورة إذا كانت الواجهة تُرجع قاموساً (Gradio 4+)
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if isinstance(image, dict):
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image = image.get("composite", image.get("background"))
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# تحويل الصورة إلى رمادي وعكس الألوان (أبيض على أسود)
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gray = cv2.cvtColor(image, cv2.COLOR_RGB2GRAY)
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_, thresh = cv2.threshold(gray, 200, 255, cv2.THRESH_BINARY_INV)
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# اقتصاص الجزء المرسوم وتغيير حجمه
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coords = cv2.findNonZero(thresh)
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if coords is not None:
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x, y, w, h = cv2.boundingRect(coords)
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cropped = thresh[y : y + h, x : x + w]
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# الحفاظ على أبعاد الرسمة عند التحجيم لـ 20x20
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if w > h:
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new_w, new_h = 20, int(h * (20 / w))
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else:
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new_h, new_w = 20, int(w * (20 / h))
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resized = cv2.resize(
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padded = np.pad(
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resized,
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((
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"constant",
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)
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else:
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padded = cv2.resize(thresh, (28, 28))
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# تمركز كتلة الرسمة
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final_img = center_image(padded)
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# تجهيز الصورة والتنبؤ
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input_data = (final_img.astype("float32") / 255.0).reshape(1, 28, 28, 1)
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pred = model.predict(input_data, verbose=0)[0]
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return final_img, {str(i): float(pred[i]) for i in range(10)}
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#
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with gr.Blocks(title="MNIST Predictor") as demo:
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gr.Markdown("# 🧠 التنبؤ بالأرقام المرسومة")
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with gr.Row():
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with gr.Column():
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input_pad = gr.Sketchpad(label="ارسم رقماً هنا")
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btn_predict = gr.Button("تنبؤ", variant="primary")
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with gr.Column():
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out_label = gr.Label(num_top_classes=3, label="النتيجة")
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out_img = gr.Image(label="الصورة المعالجة (28x28)", image_mode="L")
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import os
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import cv2
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import gradio as gr
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import numpy as np
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import tensorflow as tf
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from scipy import ndimage
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from tensorflow.keras import layers, models
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MODEL_PATH = "mnist_model.keras"
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def get_or_build_model():
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# 1. إذا كان النموذج موجوداً، قم بتحميله فوراً
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if os.path.exists(MODEL_PATH):
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print("✅ تم تحميل النموذج بنجاح من الملف")
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return tf.keras.models.load_model(MODEL_PATH)
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# 2. إذا لم يكن موجوداً، يتم بناؤه وتدريبه سريعاً لمرة واحدة
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print("⚠️ لم يتم العثور على ملف النموذج. جاري بناء وتدريب نموذج جديد على CPU...")
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model = models.Sequential(
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[
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layers.Input(shape=(28, 28, 1)),
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layers.Conv2D(32, (3, 3), activation="relu"),
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layers.BatchNormalization(),
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layers.MaxPooling2D((2, 2)),
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layers.Conv2D(64, (3, 3), activation="relu"),
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layers.BatchNormalization(),
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layers.MaxPooling2D((2, 2)),
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layers.Flatten(),
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layers.Dense(64, activation="relu"),
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layers.Dropout(0.3),
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layers.Dense(10, activation="softmax"),
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]
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)
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model.compile(
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optimizer="adam",
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loss="sparse_categorical_crossentropy",
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metrics=["accuracy"],
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)
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# تحميل البيانات وتقسيمها يدوياً لتفادي أخطاء Keras 3
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(x_train_full, y_train_full), _ = tf.keras.datasets.mnist.load_data()
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x_train_full = x_train_full.reshape(-1, 28, 28, 1).astype("float32") / 255.0
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split = int(len(x_train_full) * 0.9)
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x_tr, x_va = x_train_full[:split], x_train_full[split:]
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y_tr, y_va = y_train_full[:split], y_train_full[split:]
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# تدريب خفيف جداً لـ 3 جولات فقط (سريع ومناسب لـ CPU Space)
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model.fit(
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x_tr,
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y_tr,
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epochs=3,
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batch_size=128,
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validation_data=(x_va, y_va),
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verbose=1,
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)
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model.save(MODEL_PATH)
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print("✅ تم تدريب النموذج وحفظه بنجاح")
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return model
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# تحميل أو بناء النموذج
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model = get_or_build_model()
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# دالة تمركز كتلة الرسم
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def center_image(img):
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cy, cx = ndimage.center_of_mass(img)
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rows, cols = img.shape
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return cv2.warpAffine(img, M, (cols, rows))
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# دالة التنبؤ
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def predict(image):
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if image is None:
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return None, {"error": "لم يتم الرسم"}
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if isinstance(image, dict):
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image = image.get("composite", image.get("background"))
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gray = cv2.cvtColor(image, cv2.COLOR_RGB2GRAY)
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_, thresh = cv2.threshold(gray, 200, 255, cv2.THRESH_BINARY_INV)
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coords = cv2.findNonZero(thresh)
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if coords is not None:
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x, y, w, h = cv2.boundingRect(coords)
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cropped = thresh[y : y + h, x : x + w]
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if w > h:
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new_w, new_h = 20, int(h * (20 / w))
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else:
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new_h, new_w = 20, int(w * (20 / h))
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resized = cv2.resize(
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cropped, (new_w, new_h), interpolation=cv2.INTER_AREA
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)
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pad_v = (28 - new_h) // 2
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pad_h = (28 - new_w) // 2
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padded = np.pad(
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resized,
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((pad_v, 28 - new_h - pad_v), (pad_h, 28 - new_w - pad_h)),
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"constant",
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)
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else:
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padded = cv2.resize(thresh, (28, 28))
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final_img = center_image(padded)
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input_data = (final_img.astype("float32") / 255.0).reshape(1, 28, 28, 1)
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pred = model.predict(input_data, verbose=0)[0]
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return final_img, {str(i): float(pred[i]) for i in range(10)}
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# واجهة Gradio
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with gr.Blocks(title="MNIST Predictor") as demo:
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gr.Markdown("# 🧠 التنبؤ بالأرقام المرسومة (MNIST)")
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with gr.Row():
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with gr.Column():
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input_pad = gr.Sketchpad(label="ارسم رقماً هنا")
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btn_predict = gr.Button("تنبؤ", variant="primary")
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with gr.Column():
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out_label = gr.Label(num_top_classes=3, label="النتيجة")
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out_img = gr.Image(label="الصورة المعالجة (28x28)", image_mode="L")
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