app.py

import gradio as gr
from PIL import Image, ImageEnhance

def to_black_and_white(input_image, contrast_level):
    # Enhance contrast
    enhancer = ImageEnhance.Contrast(input_image)
    enhanced_image = enhancer.enhance(contrast_level)
    
    # Convert to grayscale
    bw_image = enhanced_image.convert("L")
    return bw_image

with gr.Blocks() as app:
    gr.Markdown("### Black and White Image Maker with Contrast Adjustment")
    with gr.Row():
        image_input = gr.Image(type="pil", label="Upload your Image")
        contrast_slider = gr.Slider(minimum=0.5, maximum=3.0, value=1.0, label="Contrast Level")
        image_output = gr.Image(type="pil", label="Black and White Image")

    image_input.change(to_black_and_white, inputs=[image_input, contrast_slider], outputs=image_output)

app.launch()