Spaces:
Sleeping
Sleeping
File size: 4,741 Bytes
55cfc4b |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 |
import streamlit as st
from PIL import Image
import io
import traceback
import time
def compress_image(image, format='webp', quality=85):
try:
# Korrektur: Wandle 'jpg' in 'jpeg' um
save_format = 'jpeg' if format.lower() == 'jpg' else format
# Korrektur: Quality-Wert wird umgekehrt angewendet
adjusted_quality = 101 - quality # Dies dreht die Skala um
img_byte_arr = io.BytesIO()
image.save(img_byte_arr, format=save_format.upper(), quality=adjusted_quality)
img_byte_arr.seek(0)
return Image.open(img_byte_arr)
except Exception as e:
st.error(f"Image compression error: {e}")
st.error(traceback.format_exc())
return None
def main():
st.title("Image optimization tool")
st.sidebar.header("Optimization settings")
uploaded_file = st.file_uploader("Select an image", type=['jpg', 'png', 'jpeg', 'webp'])
if uploaded_file is not None:
try:
original_image = Image.open(uploaded_file)
current_format = original_image.format.lower() if original_image.format else uploaded_file.name.split('.')[-1].lower()
current_format = 'jpeg' if current_format == 'jpg' else current_format
st.subheader("Original image")
st.image(original_image, caption=f"Original image ({current_format.upper()})")
original_size_bytes = len(uploaded_file.getvalue())
st.write(f"Original image size: {original_size_bytes} Bytes")
compression_quality = st.sidebar.slider(
"Compression quality (100 = best quality, 1 = smallest file)",
min_value=1,
max_value=100,
value=85
)
target_formats = [fmt for fmt in ['webp', 'jpg', 'png'] if fmt != current_format]
target_format = st.sidebar.selectbox(
"Target format",
target_formats
)
st.warning("⚠️ Please click 'Optimize Image' ONLY ONCE'!")
progress_bar = st.progress(0)
if st.button("Optimize image"):
try:
progress_bar.progress(20)
time.sleep(0.5)
optimized_image = compress_image(
original_image,
format=target_format,
quality=compression_quality
)
progress_bar.progress(60)
time.sleep(0.5)
if optimized_image:
save_format = 'jpeg' if target_format.lower() == 'jpg' else target_format
img_byte_arr = io.BytesIO()
optimized_image.save(img_byte_arr, format=save_format.upper(), quality=101-compression_quality)
img_byte_arr.seek(0)
progress_bar.progress(100)
time.sleep(0.5)
optimized_size_bytes = img_byte_arr.getbuffer().nbytes
compression_ratio = (1 - optimized_size_bytes / original_size_bytes) * 100
st.subheader("Optimization results")
col1, col2 = st.columns(2)
with col1:
st.image(optimized_image, caption=f"Optimized ({target_format.upper()})")
with col2:
st.write(f"Original size: {original_size_bytes} Bytes")
st.write(f"Optimized size: {optimized_size_bytes} Bytes")
st.write(f"Compression rate: {compression_ratio:.2f}%")
st.download_button(
label=f"Download {target_format.upper()}",
data=img_byte_arr,
file_name=f"optimized_image.{target_format}",
mime=f"image/{target_format}"
)
progress_bar.empty()
except Exception as e:
st.error(f"Image optimization error: {e}")
progress_bar.empty()
except Exception as e:
st.error(f"Error loading image: {e}")
if __name__ == "__main__":
main() |