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import streamlit as st
from PIL import Image, ImageOps, ImageEnhance
import numpy as np
import io
# Custom CSS for enhanced styling
st.markdown(
"""
<style>
.stApp {
background-color: #121212;
color: #E0E0E0;
}
.stTitle {
text-align: center;
color: #4CAF50;
}
.css-1d391kg p, .css-1v0mbdj p {
color: #B0BEC5;
}
.css-1aumxhk .stSlider {
background-color: #4CAF50;
}
.css-2trqyj, .css-16idsys p {
color: #BB86FC;
}
</style>
""",
unsafe_allow_html=True,
)
st.title("🌟 Image Augmentation Tool Hands-On Experience", anchor=False)
uploaded_image = st.sidebar.file_uploader("📤 Upload an Image", type=["jpg", "png", "jpeg"])
if uploaded_image:
try:
image = Image.open(uploaded_image)
st.sidebar.image(image, caption="📸 Uploaded Image", use_column_width=True)
st.sidebar.subheader("✨ Augmentation Options")
augmentation_options = st.sidebar.multiselect(
"Choose augmentations:",
["Cropping", "Flipping", "Rotation", "Zoom In", "Zoom Out", "Translation", "Shearing"]
)
augmented_image = image.copy()
# Live preview toggle
live_preview = st.sidebar.checkbox("🔄 Live Preview", value=True)
for augmentation_option in augmentation_options:
if augmentation_option == "Cropping":
left = st.slider("Left Crop", 0, image.width // 2, 0)
top = st.slider("Top Crop", 0, image.height // 2, 0)
right = st.slider("Right Crop", 0, image.width // 2, 0)
bottom = st.slider("Bottom Crop", 0, image.height // 2, 0)
augmented_image = augmented_image.crop((left, top, image.width - right, image.height - bottom))
elif augmentation_option == "Flipping":
flip_option = st.selectbox("🔄 Flip Type", ["Horizontal", "Vertical"], key=f"flip_{augmentation_option}")
if flip_option == "Horizontal":
augmented_image = ImageOps.mirror(augmented_image)
elif flip_option == "Vertical":
augmented_image = ImageOps.flip(augmented_image)
elif augmentation_option == "Rotation":
rotation_angle = st.slider("⤾ Rotation (°)", 0, 360, 0)
augmented_image = augmented_image.rotate(rotation_angle, expand=True)
elif augmentation_option == "Zoom In":
scale_factor = st.slider("🔍 Zoom Factor (%)", 100, 200, 100) / 100.0
width, height = augmented_image.size
new_width = int(width * scale_factor)
new_height = int(height * scale_factor)
zoomed_image = augmented_image.resize((new_width, new_height))
augmented_image = zoomed_image.crop(((new_width - width) // 2, (new_height - height) // 2,
(new_width + width) // 2, (new_height + height) // 2))
elif augmentation_option == "Zoom Out":
scale_factor = st.slider("🔎 Zoom Out Factor (%)", 50, 100, 100) / 100.0
width, height = augmented_image.size
new_width = int(width * scale_factor)
new_height = int(height * scale_factor)
zoomed_image = augmented_image.resize((new_width, new_height))
padded_image = Image.new("RGB", (width, height), (0, 0, 0))
padded_image.paste(zoomed_image, ((width - new_width) // 2, (height - new_height) // 2))
augmented_image = padded_image
elif augmentation_option == "Translation":
translation_x = st.slider("↔ Horizontal Shift (Pixels)", -100, 100, 0)
translation_y = st.slider("↕ Vertical Shift (Pixels)", -100, 100, 0)
translation_matrix = (1, 0, translation_x, 0, 1, translation_y)
augmented_image = augmented_image.transform(
augmented_image.size, Image.AFFINE, translation_matrix, fillcolor=(0, 0, 0)
)
elif augmentation_option == "Shearing":
shear_angle = st.slider("🌀 Shearing Angle (°)", -45, 45, 0)
shear_matrix = (1, np.tan(np.radians(shear_angle)), 0, 0, 1, 0)
augmented_image = augmented_image.transform(
(augmented_image.width + abs(int(augmented_image.height * np.tan(np.radians(shear_angle)))), augmented_image.height),
Image.AFFINE,
shear_matrix,
fillcolor=(0, 0, 0),
)
st.subheader("🖼️ Augmented Image")
st.image(augmented_image, caption="Augmentation Applied", use_column_width=True)
buffer = io.BytesIO()
augmented_image.save(buffer, format="PNG")
buffer.seek(0)
st.download_button("📥 Download Augmented Image", buffer, file_name="augmented_image.png")
except Exception as e:
st.error(f"❌ An error occurred: {e}")
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