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import gradio as gr
from steganography import Steganography
from utils import draw_multiple_line_text, generate_qr_code
TITLE = """<h2 align="center"> ✍️ Invisible Watermark </h2>"""
def apply_watermark(radio_button, input_image, watermark_image, watermark_text, watermark_url):
input_image = input_image.convert('RGB')
if radio_button == "Image":
watermark_image = watermark_image.resize((input_image.width, input_image.height)).convert('L').convert('RGB')
return Steganography().merge(input_image, watermark_image, digit=7)
elif radio_button == "Text":
watermark_image = draw_multiple_line_text(input_image.size, watermark_text)
return Steganography().merge(input_image, watermark_image, digit=7)
else:
size = min(input_image.width, input_image.height)
watermark_image = generate_qr_code(watermark_url).resize((size, size)).convert('RGB')
return Steganography().merge(input_image, watermark_image, digit=7)
def extract_watermark(input_image_to_extract):
return Steganography().unmerge(input_image_to_extract.convert('RGB'), digit=7).convert('RGBA')
with gr.Blocks() as demo:
gr.HTML(TITLE)
with gr.Tab("Add watermark"):
with gr.Row():
with gr.Column():
gr.Markdown("### Image to apply watermark")
input_image = gr.Image(type='pil')
with gr.Blocks():
gr.Markdown("### Which type of watermark you want to apply?")
radio_button = gr.Radio(
choices=["QRCode", "Text", "Image"],
label="Watermark type",
value="QRCode",
# info="Which type of watermark you want to apply?"
)
watermark_url = gr.Textbox(
placeholder="URL to generate QR code",
visible=True
)
watermark_text = gr.Textbox(
placeholder="What text you want to use as watermark?",
visible=False
)
watermark_image = gr.Image(
type='pil',
visible=False
)
def update_visibility(radio_value):
return {
watermark_image:
{
"visible":radio_value == "Image",
"__type__": "update"
},
watermark_text:
{
"visible":radio_value == "Text",
"__type__": "update"
},
watermark_url:
{
"visible":radio_value == "QRCode",
"__type__": "update"
}
}
with gr.Column():
gr.Markdown("### Applied watermark image")
output_image = gr.Image(show_label=False)
with gr.Row():
apply_button =gr.Button("Apply")
with gr.Tab("Extract watermark"):
with gr.Row():
with gr.Column():
gr.Markdown("### Image to extract watermark")
input_image_to_extract = gr.Image(type='pil')
with gr.Column():
gr.Markdown("### Extracted watermark")
extracted_watermark = gr.Image(type='pil')
extract_button = gr.Button("Extract")
radio_button.change(
fn=update_visibility,
inputs=radio_button,
outputs=[watermark_image, watermark_text, watermark_url]
)
apply_button.click(
fn=apply_watermark,
inputs=[radio_button, input_image, watermark_image, watermark_text, watermark_url],
outputs=[output_image]
)
extract_button.click(fn=extract_watermark, inputs=[input_image_to_extract], outputs=[extracted_watermark])
demo.launch() |