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Create app.py
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app.py
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import streamlit as st
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import torch
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from torchvision import transforms
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from PIL import Image
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import torch.nn.functional as F
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import pickle
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import pandas as pd
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me = ['Acceuil','Analyse Medicale']
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p = st.sidebar.selectbox('menu', me)
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@st.cache_resource # Pour éviter de recharger le modècdle à chaque interaction
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def charger_modele_pytorch():
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modele = torch.load('TATSA_Model1_TransfLr_py.pth', map_location=device) # Charge le modèle
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#modele.eval() # Important : mettez le modèle en mode évaluation
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return modele
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#chemin_modele = charger_modele_pytorch()
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#chemin_modele = st.text_input("Chemin vers le modèle (.pth)", "pytorch1.pth")
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if torch.cuda.is_available():
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device = st.selectbox("Utiliser le GPU ou le CPU ?", ["GPU", "CPU"], index=0)
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device = torch.device("cuda" if device == "GPU" else "cpu")
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else:
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#st.write("Aucun GPU détecté. Utilisation du CPU.")
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device = torch.device("cpu")
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modele_charge = charger_modele_pytorch()
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# Transformation des images (Doit être la même que celle utilisée à l'entraînement)
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transform = transforms.Compose([
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transforms.Resize((224, 224)), # Modifier selon la taille utilisée à l'entraînement
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transforms.ToTensor(),
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transforms.Normalize((0.5),0.5)])
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if p == 'Acceuil':
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st.title('EXAMEN SEMESTRE I, DE TRANSFERT LEARNING')
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st.subheader('MASTER 2 IABD')
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st.subheader('TATSA TCHINDA Colince')
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elif p=='Analyse Medicale':
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st.title('TRANSFERT LEARNING')
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upload_file = st.sidebar.file_uploader('Choisissez une image',type=['jpg','jpeg','png'])
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if upload_file:
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image = Image.open(upload_file).convert("RGB")
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st.image(image, caption="Image chargée", use_container_width=True)
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# Prétraitement de l'image
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img_tensor = transform(image).unsqueeze(0) # Ajout d'une dimension batch
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#bouton1 = st.sidebar.button('Resultat')
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#bouton2 = st.sidebar.buttonRadio('Probabilites')
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classes_p = {'HEALTHY': 0,'BRAIN_TUMOR': 1}
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def output_proba():
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output = modele_charge(img_tensor)
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probabilities = F.softmax(output, dim=1)
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return output, probabilities
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if st.sidebar.checkbox("resultat"):
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# Prédiction
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with torch.no_grad():
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output,_ =output_proba()
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predicted_class = torch.argmax(output, dim=1).item()
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for key, value in classes_p.items():
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if value == predicted_class:
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st.title(f'Categorie de ➤ {key}')
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if st.sidebar.checkbox("prob"):
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_,probabilities = output_proba()
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df = pd.DataFrame({"Classe": classes_p.keys(),"Probabilité": probabilities.tolist()[0]})
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st.write("Probabilités :")
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st.dataframe(df)
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