pixel_art / app.py
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Update app.py
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import io
import numpy as np
from PIL import Image
import streamlit as st
uploaded_file = st.file_uploader("Choose an image", type=['png', 'jpg', 'jpeg'])
pixelsize = st.selectbox(
'Pixel grid size',
(256, 128, 64, 32), format_func=lambda x: f'{x}px')
colors = st.selectbox("Number of colors", (256, 128, 64, 32, 16, 8))
if uploaded_file:
submit_button = st.button(label='Generate pixel art!')
if uploaded_file and submit_button:
img_raw = Image.open(uploaded_file)
hsv_image = img_raw.convert("HSV")
hue, saturation, value = hsv_image.split()
threshold = 180
saturation = saturation.point(lambda x: 255 if x > threshold else x)
hsv_image = Image.merge("HSV", (hue, saturation, value))
img = hsv_image.convert("RGB")
size = img.size
new_size = (size[0] * pixelsize // max(size), size[1] * pixelsize // max(size))
img = img.convert("RGB").convert("P", palette=Image.ADAPTIVE, colors=colors)
img = img.resize(new_size, resample=Image.NEAREST).quantize(colors=256, dither=Image.Dither.FLOYDSTEINBERG)
img = img.resize(size, resample=Image.NEAREST)
col1, col2 = st.columns(2)
col1.image(img_raw)
col2.image(img, channels='RGB')
output = io.BytesIO()
img.convert("RGB").save(output, format='JPEG')
btn = st.download_button(
label="Download image",
data=output,
file_name="pixel_art.png",
mime="image/png"
)