Delete inference.py
Browse files- inference.py +0 -68
inference.py
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import torch
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from transformers import Pipeline
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from segment_anything import sam_model_registry, SamPredictor
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import numpy as np
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class CVATWrapper:
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def __init__(self, model_path):
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# Modell laden
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self.device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
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# Für SAM:
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self.model = sam_model_registry["vit_h"](checkpoint=model_path)
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self.model.to(self.device)
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self.predictor = SamPredictor(self.model)
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# Für eigene Modelle:
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# self.model = torch.load(model_path)
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# self.model.eval()
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def preprocess(self, image):
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# Bildvorverarbeitung
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if isinstance(image, str):
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# Falls Bildpfad übergeben wird
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image = cv2.imread(image)
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image = cv2.cvtColor(image, cv2.COLOR_BGR2RGB)
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return image
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def predict(self, image):
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# Vorverarbeitung
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image = self.preprocess(image)
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# Für SAM:
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self.predictor.set_image(image)
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masks, scores, logits = self.predictor.predict()
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# Für eigene Modelle:
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# output = self.model(processed_image)
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# masks = process_output(output) # Je nach Modellausgabe
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# Konvertierung ins CVAT-Format
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results = []
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for mask, score in zip(masks, scores):
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if score > 0.5: # Konfidenz-Schwellenwert
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results.append({
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"confidence": float(score),
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"label": "object",
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"points": mask_to_polygons(mask), # Hilfsfunktion unten
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"type": "polygon"
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})
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return results
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def mask_to_polygons(mask):
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"""Konvertiert eine binäre Maske in CVAT-Polygon-Format"""
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import cv2
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contours, _ = cv2.findContours(
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mask.astype(np.uint8),
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cv2.RETR_EXTERNAL,
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cv2.CHAIN_APPROX_SIMPLE
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)
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polygons = []
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for contour in contours:
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# Vereinfache die Konturen
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epsilon = 0.005 * cv2.arcLength(contour, True)
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approx = cv2.approxPolyDP(contour, epsilon, True)
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if len(approx) >= 3: # Mindestens 3 Punkte für ein Polygon
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polygons.append(approx.reshape(-1, 2).tolist())
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return polygons[0] if polygons else []
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