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app.py
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import sys
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import pickle
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import os
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import numpy as np
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import PIL.Image
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import IPython.display
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from IPython.display import Image
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import matplotlib.pyplot as plt
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import gradio as gr
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import cv2
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sys.path.insert(0, "StyleGAN2-GANbanales")
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import dnnlib
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import dnnlib.tflib as tflib
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##############################################################################
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# Generation functions
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def seed2vec(Gs, seed):
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rnd = np.random.RandomState(seed)
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return rnd.randn(1, *Gs.input_shape[1:])
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def init_random_state(Gs, seed):
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rnd = np.random.RandomState(seed)
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noise_vars = [var for name, var in Gs.components.synthesis.vars.items() if name.startswith('noise')]
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tflib.set_vars({var: rnd.randn(*var.shape.as_list()) for var in noise_vars}) # [height, width]
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def generate_image(Gs, z, truncation_psi, prefix="image", save=False, show=False):
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# Render images for dlatents initialized from random seeds.
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Gs_kwargs = {
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'output_transform': dict(func=tflib.convert_images_to_uint8, nchw_to_nhwc=True),
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'randomize_noise': False
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}
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if truncation_psi is not None:
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Gs_kwargs['truncation_psi'] = truncation_psi
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label = np.zeros([1] + Gs.input_shapes[1][1:])
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images = Gs.run(z, label, **Gs_kwargs) # [minibatch, height, width, channel]
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if save == True:
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path = f"{prefix}.png"
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PIL.Image.fromarray(images[0], 'RGB').save(path)
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if show == True:
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return images[0]
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##############################################################################
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# Function concatenate
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def concatenate(img_array):
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zeros = np.zeros([256,256,3], dtype=np.uint8)
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zeros.fill(255)
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white_img = zeros
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a = 1
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for i in img_array:
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cv2.imwrite('imagenes/' + str(a) + '.png', i)
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a+=1
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# 1 - 2 images
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if len(img_array) <= 2:
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row_img = img_array[0]
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for i in img_array[1:]:
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row_img = cv2.hconcat([row_img, i])
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final_img = row_img
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# 3 - 4 images
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elif len(img_array) >= 3 and len(img_array) <= 4:
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row1_img = img_array[0]
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for i in img_array[1:2]:
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row1_img = cv2.hconcat([row1_img, i])
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cv2.imwrite('imagenes/row1.png', row1_img)
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row2_img = img_array[2]
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for i in img_array[3:]:
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row2_img = cv2.hconcat([row2_img, i])
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cv2.imwrite('imagenes/row2_before.png', row2_img)
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for i in range(4-len(img_array)):
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row2_img = cv2.hconcat([row2_img, white_img])
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cv2.imwrite('imagenes/row2_after.png', row2_img)
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final_img = cv2.vconcat([row1_img, row2_img])
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# 5 - 6 images
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elif len(img_array) >= 4 and len(img_array) <= 6:
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row1_img = img_array[0]
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for i in img_array[1:3]:
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row1_img = cv2.hconcat([row1_img, i])
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row2_img = img_array[3]
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for i in img_array[4:]:
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row2_img = cv2.hconcat([row2_img, i])
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for i in range(6-len(img_array)):
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row2_img = cv2.hconcat([row2_img, white_img])
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final_img = cv2.vconcat([row1_img, row2_img])
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# 7 - 9 images
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elif len(img_array) >= 7:
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row1_img = img_array[0]
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for i in img_array[1:3]:
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row1_img = cv2.hconcat([row1_img, i])
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row2_img = img_array[3]
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for i in img_array[4:6]:
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row2_img = cv2.hconcat([row2_img, i])
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row3_img = img_array[6]
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for i in img_array[7:9]:
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row3_img = cv2.hconcat([row3_img, i])
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for i in range(9-len(img_array)):
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row3_img = cv2.hconcat([row3_img, white_img])
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final_img = cv2.vconcat([row1_img, row2_img])
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final_img = cv2.vconcat([final_img, row3_img])
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return final_img
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##############################################################################
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# Function initiate
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def initiate(seed, n_imgs, text):
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pkl_file = "networks/experimento_2.pkl"
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tflib.init_tf()
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with open(pkl_file, 'rb') as pickle_file:
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_G, _D, Gs = pickle.load(pickle_file)
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img_array = []
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first_seed = seed
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for i in range(seed, seed+n_imgs):
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init_random_state(Gs, 10)
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z = seed2vec(Gs, seed)
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img = generate_image(Gs, z, 1.0, show=True)
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img_array.append(img)
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seed+=1
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final_img = concatenate(img_array)
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return final_img, "Imágenes generadas"
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##############################################################################
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# Gradio code
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iface = gr.Interface(
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fn=initiate,
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inputs=[gr.inputs.Slider(0, 99999999, "image"), gr.inputs.Slider(1, 9, "images"), "text"],
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outputs=["image", "text"],
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examples=[
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[40, 1, "Edificios al anochecer"],
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[37, 1, "Fuente de día"],
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[426, 1, "Edificios con cielo oscuro"],
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[397, 1, "Edificios de día"],
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[395, 1, "Edificios desde anfiteatro"],
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[281, 1, "Edificios con luces encendidas"],
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[230, 1, "Edificios con luces encendidas y vegetación"],
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[221, 1, "Edificios con vegetación"],
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[214, 1, "Edificios al atardecer con luces encendidas"],
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[198, 1, "Edificio al anochecer con luces en el pasillo"]
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],
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title="GANbanales",
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description="Una GAN para generar imágenes del campus universitario de Rabanales, Córdoba."
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)
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if __name__ == "__main__":
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app, local_url, share_url = iface.launch(debug=True, share=True)
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