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Update app.py
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app.py
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import gradio as gr
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import numpy as np
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from sklearn.cluster import KMeans
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from sklearn.neighbors import NearestNeighbors
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def knn_color_quantization(image, n_colors):
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pixels = np.reshape(image, (image.shape[0] * image.shape[1], image.shape[2]))
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kmeans = KMeans(n_clusters=n_colors, random_state=42)
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kmeans.fit(pixels)
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kmeans_centers = kmeans.cluster_centers_
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knn = NearestNeighbors(n_neighbors=1)
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knn.fit(kmeans_centers)
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distances, indices = knn.kneighbors(pixels)
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quantized_pixels = kmeans_centers[indices.flatten()]
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quantized_image = np.reshape(quantized_pixels, image.shape)
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quantized_image = quantized_image / 255.0
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return quantized_image
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def color_quantization_app(image, num_colors):
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quantized_image = knn_color_quantization(image, num_colors)
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quantized_image = (quantized_image * 255).astype(np.uint8)
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return quantized_image
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-
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#themes
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#freddyaboulton/dracula_revamped
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#freddyaboulton/test-blue
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#Insuz/Mocha
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#Taithrah/Minimal
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dark_minimalist = gr.Theme.from_hub("Taithrah/Minimal")
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iface = gr.Interface(
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fn=color_quantization_app,
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inputs=[gr.Image(label="Uploaded Image", sources='upload', type="numpy"), gr.Slider(minimum=2,maximum=300,value=8, label='Number of Colors',interactive=True)],
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outputs=gr.Image(label="Quantized Image"),
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live=False,
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allow_flagging="never",
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theme=dark_minimalist,
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css="""
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footer {
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visibility: hidden;
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}
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"""
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)
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# Importing the Gradio library for creating interactive web interfaces
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import gradio as gr
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# Importing necessary libraries for image processing
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import numpy as np
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from sklearn.cluster import KMeans
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from sklearn.neighbors import NearestNeighbors
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# Function to perform k-means color quantization on an image
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def knn_color_quantization(image, n_colors):
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# Reshaping the image into a 2D array of pixels
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pixels = np.reshape(image, (image.shape[0] * image.shape[1], image.shape[2]))
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# Performing k-means clustering to find the dominant colors
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kmeans = KMeans(n_clusters=n_colors, random_state=42)
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kmeans.fit(pixels)
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# Getting the cluster centers as the representative colors
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kmeans_centers = kmeans.cluster_centers_
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# Fitting a nearest neighbors model to find the closest color for each pixel
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knn = NearestNeighbors(n_neighbors=1)
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knn.fit(kmeans_centers)
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# Finding the closest color for each pixel and reconstructing the quantized image
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distances, indices = knn.kneighbors(pixels)
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quantized_pixels = kmeans_centers[indices.flatten()]
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quantized_image = np.reshape(quantized_pixels, image.shape)
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# Scaling the image values to the range [0, 1]
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quantized_image = quantized_image / 255.0
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return quantized_image
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# Function to create the Gradio interface for color quantization
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def color_quantization_app(image, num_colors):
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# Calling the knn_color_quantization function to quantize the image
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quantized_image = knn_color_quantization(image, num_colors)
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# Converting the pixel values back to the range [0, 255] and casting to uint8
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quantized_image = (quantized_image * 255).astype(np.uint8)
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return quantized_image
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# Creating a Gradio interface object
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iface = gr.Interface(
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# Specifying the function to be executed
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fn=color_quantization_app,
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# Defining the inputs for the interface (an uploaded image and a slider for number of colors)
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inputs=[gr.Image(label="Uploaded Image", sources='upload', type="numpy"), gr.Slider(minimum=2,maximum=300,value=8, label='Number of Colors',interactive=True)],
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# Defining the output for the interface (quantized image)
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outputs=gr.Image(label="Quantized Image"),
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# Disabling live updates
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live=False,
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# Disabling user flagging of outputs
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allow_flagging="never",
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# Applying a custom theme retrieved from Gradio Hub
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theme=dark_minimalist,
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# Adding custom CSS to hide the footer of the interface
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css="""
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footer {
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visibility: hidden;
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}
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"""
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)
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# Launching the Gradio interface
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iface.launch()
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