subiendo utils y app
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app.py
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import streamlit as st
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from utils import carga_modelo, genera
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##Pagina principal
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st.title('Generador de mariposas')
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st.write('Este es un modelo Light GAN entrenado')
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#Barra lateral
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st.sidebar.subheader('!Esta mariposa no existe, puedes creelo')
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st.sidebar.image('assets/logo.png', width=200)
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st.sidebar.caption('Demo creado')
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#cargamos el modelo
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repo_id = 'ceyda/butterfly_cropped_uniq1K_512'
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modelo_gan = carga_modelo(repo_id)
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#generamos 4 mariposas
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n_mariposas = 4
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def corre():
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with st.spinner('Generando, espero un poco...')
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ims = genera(modelo_gan, n_mariposas)
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st.session_state['ims']= ims
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if 'ims' not in st.session_state:
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st.session_state['ims'] = None
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corre()
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ims = st.session_state['ims']
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corre_boton = st.button(
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'Genera mariposas porfa',
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on_click=corre,
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help='Estamos en vuelo, abrocha tu cinturon'
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)
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if ims is not None:
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cols = st.columns(n_mariposas)
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for j, im in enumerate(ims):
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i = j % n_mariposas
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cols[i].image(im, use_column_widht=True)
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utils.py
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import numpy as np
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import torch
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from huggan.pytorch.lightweights_gan.lightweight_gan import LightweightGAN
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def carga_modelo(model_name="ceyda/butterfly_cropped_uniq1K_512",model_version=None):
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gan = LightweightGAN.from_pretrained(model_name,version=model_version)
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gan.eval()
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return gan
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def genera(gan,batch_size=1):
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with torch.no_grad():
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ims = gan.G(torch.randn(batch_size, gan.latent_dim)).clamp_(0.0, 1.0) * 255
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ims = ims.permute(0,2,3,1).deatch().cpu().numpy().astype(np.uint8)
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return ims
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