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README.md
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# Modelo CNN para Clasificaci贸n de Perros vs Gatos
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Este modelo de red neuronal convolucional (CNN) ha sido entrenado para clasificar im谩genes de perros y gatos. Se trata de una tarea de clasificaci贸n binaria donde la salida es `0` (gato) o `1` (perro). Fue construido utilizando `TensorFlow` y `Keras`, entrenado desde cero con un dataset personalizado.
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---
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## Dataset
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- **Nombre**: Cats vs Dogs Dataset
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- **Origen**: Carpeta local `train/`
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- **Cantidad**: 25,000 im谩genes
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- Etiquetado autom谩tico por nombre de archivo (`cat` o `dog`)
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- **Tama帽o de imagen**: 150x150 p铆xeles
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- **Preprocesamiento**:
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- Reescalado: todos los valores de p铆xel normalizados a `[0, 1]`
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- Divisi贸n en entrenamiento y validaci贸n: `80% / 20%`
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---
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## Arquitectura del modelo
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Sequential([
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Conv2D(32, (3, 3), activation='relu', input_shape=(150, 150, 3)),
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MaxPooling2D(2, 2),
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Conv2D(64, (3, 3), activation='relu'),
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MaxPooling2D(2, 2),
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Conv2D(128, (3, 3), activation='relu'),
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MaxPooling2D(2, 2),
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Flatten(),
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Dense(512, activation='relu'),
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Dropout(0.5),
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Dense(1, activation='sigmoid')
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])
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model.compile(optimizer=Adam(), loss='binary_crossentropy', metrics=['accuracy'])
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model.fit(X_train, y_train, epochs=10, batch_size=32, validation_data=(X_val, y_val))
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---
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## Como usar
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from tensorflow.keras.models import load_model
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from tensorflow.keras.preprocessing import image
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import numpy as np
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model = load_model("dogs_vs_cats_cnn.h5")
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def predict_image(img_path):
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img = image.load_img(img_path, target_size=(150, 150))
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img_array = image.img_to_array(img) / 255.0
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img_array = np.expand_dims(img_array, axis=0)
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prediction = model.predict(img_array)[0][0]
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return "Perro 馃惗" if prediction > 0.5 else "Gato 馃惐"
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---
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## Guardado del modelo
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model.save("dogs_vs_cats_cnn.h5")
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---
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## Requisitos
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- Python >= 3.8
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- TensorFlow >= 2.9
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- NumPy
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- scikit-learn
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---
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