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Parent(s):
85d7bbb
ImageClassificationSpace\nAPI en HuggingFace Space con TensorFlow Serving-like pipeline.
Browse files- .gitattributes +1 -0
- Dockerfile +17 -0
- README.md +4 -4
- app.py +148 -0
- my_classification_model_float16.tflite +3 -0
- requirements.txt +6 -0
- runtime.txt +1 -0
.gitattributes
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@@ -33,3 +33,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
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*.zip filter=lfs diff=lfs merge=lfs -text
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*.zst filter=lfs diff=lfs merge=lfs -text
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*tfevents* filter=lfs diff=lfs merge=lfs -text
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*.zip filter=lfs diff=lfs merge=lfs -text
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*.zst filter=lfs diff=lfs merge=lfs -text
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*tfevents* filter=lfs diff=lfs merge=lfs -text
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*.keras filter=lfs diff=lfs merge=lfs -text
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Dockerfile
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FROM python:3.10
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# Crear usuario no-root
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RUN useradd -m -u 1000 user
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USER user
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ENV PATH="/home/user/.local/bin:$PATH"
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WORKDIR /app
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COPY --chown=user ./requirements.txt /app/requirements.txt
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RUN pip install --no-cache-dir -r requirements.txt
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COPY --chown=user . /app
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EXPOSE 7860
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CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]
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README.md
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@@ -1,11 +1,11 @@
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---
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title: ImageClassificationSpace
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emoji:
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colorFrom:
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colorTo: purple
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sdk: docker
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pinned: false
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license: apache-2.0
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---
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-
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---
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title: ImageClassificationSpace
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emoji: 馃殌
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colorFrom: blue
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colorTo: purple
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sdk: docker
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pinned: false
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---
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# ClassificationVCAPI
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API en HuggingFace Space con TensorFlow Serving-like pipeline.
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app.py
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from fastapi import FastAPI
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from pydantic import BaseModel
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import base64
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import numpy as np
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from PIL import Image
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import io
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import ai_edge_litert.interpreter as interpreter
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app = FastAPI(title="AI Edge LiteRT API")
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# Cargar el modelo TFLite una sola vez al iniciar
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MODEL_PATH = "./my_classification_model_float16.tflite" # Cambia seg煤n tu modelo (float32, float16, int8, etc.)
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litert_interpreter = interpreter.Interpreter(model_path=MODEL_PATH)
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litert_interpreter.allocate_tensors()
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# Obtener detalles de entrada/salida
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input_details = litert_interpreter.get_input_details()
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output_details = litert_interpreter.get_output_details()
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# Verificar si el modelo usa cuantizaci贸n INT8
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IS_INT8_MODEL = input_details[0]['dtype'] == np.uint8
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class ImagePayload(BaseModel):
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image_base64: str
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@app.get("/")
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def home():
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return {
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"status": "ok",
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"message": "API is running! Use POST /predict",
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"model_info": {
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"input_shape": input_details[0]['shape'].tolist(),
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"input_dtype": str(input_details[0]['dtype']),
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"output_shape": output_details[0]['shape'].tolist(),
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"output_dtype": str(output_details[0]['dtype']),
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"quantized": IS_INT8_MODEL
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}
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}
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def preprocess_image(img_bytes, target_size=(224, 224)):
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"""
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Preprocesa la imagen usando NumPy y PIL
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Args:
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img_bytes: Bytes de la imagen
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target_size: Tupla (height, width)
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Returns:
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Imagen preprocesada como numpy array
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"""
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# Decodificar imagen con PIL
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img = Image.open(io.BytesIO(img_bytes))
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# Convertir a RGB si es necesario
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if img.mode != 'RGB':
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img = img.convert('RGB')
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# Redimensionar
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img = img.resize(target_size, Image.BILINEAR)
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# Convertir a numpy array
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img_array = np.array(img, dtype=np.float32)
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# Normalizar a [0, 1]
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img_array = img_array / 255.0
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# Expandir dimensiones para batch
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img_array = np.expand_dims(img_array, axis=0)
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# Si es modelo INT8, convertir directamente a uint8 [0, 255]
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# El modelo internamente hace el escalado y zero point
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if IS_INT8_MODEL:
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# Volver a escala [0, 255] y convertir a uint8
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img_array = (img_array).astype(np.uint8)
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return img_array
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def postprocess_output(output):
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"""
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Postprocesa la salida del modelo
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Args:
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output: Salida raw del modelo
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Returns:
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Probabilidades como lista
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"""
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# Si es modelo INT8, la salida ya est谩 en uint8 [0, 255]
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# El modelo internamente hace el descalado, solo necesitamos
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# convertir de uint8 a float [0, 1] o [0, 255] dependiendo del caso
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if IS_INT8_MODEL:
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# Convertir de uint8 [0, 255] a float [0, 1]
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output = output.astype(np.float32)
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# El modelo ya tiene softmax, as铆 que solo convertir a lista
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return output[0].tolist()
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@app.post("/predict")
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def predict(payload: ImagePayload):
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"""
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Endpoint de predicci贸n
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Args:
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payload: JSON con imagen en base64
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Returns:
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Predicciones del modelo
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"""
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try:
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# Decodificar base64
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img_bytes = base64.b64decode(payload.image_base64)
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# Preprocesar imagen
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img_array = preprocess_image(img_bytes, target_size=(224, 224))
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# Inferencia con AI Edge LiteRT
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litert_interpreter.set_tensor(input_details[0]['index'], img_array)
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litert_interpreter.invoke()
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output = litert_interpreter.get_tensor(output_details[0]['index'])
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# Postprocesar salida
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predictions = postprocess_output(output)
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# Obtener clase predicha y confianza
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predicted_class = int(np.argmax(predictions))
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confidence = float(predictions[predicted_class])
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return {
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"prediction": predictions,
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"predicted_class": predicted_class,
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"confidence": confidence,
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"top_5": sorted(
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[(i, float(p)) for i, p in enumerate(predictions)],
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key=lambda x: x[1],
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reverse=True
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)[:5]
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}
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except Exception as e:
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return {
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"error": str(e),
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"status": "failed"
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}
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@app.get("/health")
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def health_check():
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"""Health check endpoint"""
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return {"status": "healthy", "model_loaded": True}
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my_classification_model_float16.tflite
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version https://git-lfs.github.com/spec/v1
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oid sha256:1b3b9010c4b53f7a81599fdccf80e3d85d181b8cd8a89cc7c30c20ddcc04de26
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size 22375136
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requirements.txt
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fastapi
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uvicorn[standard]
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pydantic
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numpy
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pillow
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ai-edge-litert
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runtime.txt
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@@ -0,0 +1 @@
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python-3.10
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