Update app.py

app.py

@@ -1,6 +1,6 @@
 import gradio as gr
 import qrcode
-from PIL import Image, ImageDraw
+from PIL import Image
 import uuid
 import re
 
@@ -16,54 +16,63 @@ def generate_qr(data, fg_color, bg_color, logo):
     if not data:
         raise gr.Error("Please enter text or URL!")
 
+    # Convert colors
     fg_color = rgba_to_hex(fg_color)
     bg_color = rgba_to_hex(bg_color)
 
+    # Ensure contrast (optional safety)
+    if fg_color.lower() == bg_color.lower():
+        fg_color = "#000000"
+        bg_color = "#FFFFFF"
+
+    # Larger QR for safe scanning
     qr = qrcode.QRCode(
-        version=4,  # more blocks = better scan reliability
+        version=8,   # BIG QR → more modules → reliable
         box_size=10,
         border=4,
         error_correction=qrcode.constants.ERROR_CORRECT_H
     )
+
     qr.add_data(data)
     qr.make(fit=True)
 
     img = qr.make_image(fill_color=fg_color, back_color=bg_color).convert("RGB")
 
-    # Add logo
+    # Add logo safely
     if logo:
         logo_img = Image.open(logo).convert("RGBA")
 
         qr_w, qr_h = img.size
-        logo_size = int(qr_w * 0.15)  # 🔥 15% = SAFE FOR SCANNING
-        logo_img = logo_img.resize((logo_size, logo_size))
 
-        # Add white background box behind logo
-        white_box = Image.new("RGB", (logo_size + 12, logo_size + 12), "white")
+        # Safe logo size (12%)
+        logo_size = int(qr_w * 0.12)
+        logo_img = logo_img.resize((logo_size, logo_size))
 
-        pos = ((qr_w - white_box.width) // 2, (qr_h - white_box.height) // 2)
+        # Thick white outline box (safety border)
+        border = 20
+        box_w = logo_size + border
+        box_h = logo_size + border
+        white_box = Image.new("RGB", (box_w, box_h), "white")
 
-        # Paste white padding box
+        # Center positions
+        pos = ((qr_w - box_w)//2, (qr_h - box_h)//2)
         img.paste(white_box, pos)
 
-        # Paste logo centered on top of the white box
-        logo_pos = (pos[0] + 6, pos[1] + 6)
-        img.paste(logo_img, logo_pos, mask=logo_img)
+        # Paste logo on top
+        img.paste(logo_img, (pos[0] + border//2, pos[1] + border//2), mask=logo_img)
 
     return img
 
 
 def save_qr(data, fg_color, bg_color, logo):
     img = generate_qr(data, fg_color, bg_color, logo)
-
-    filename = f"qr_{uuid.uuid4().hex}.png"
-    path = f"/tmp/{filename}"
-    img.save(path)
-    return path
+    filepath = f"/tmp/qr_{uuid.uuid4().hex}.png"
+    img.save(filepath)
+    return filepath
 
 
-with gr.Blocks(theme=gr.themes.Soft(primary_hue="blue", neutral_hue="slate")) as demo:
-    gr.Markdown("## 🌙 QR Code Generator (Scannable + Logo + Colors)")
+with gr.Blocks(theme=gr.themes.Soft(primary_hue="blue")) as demo:
+    gr.Markdown("## ✔ SCANNABLE QR Code Generator (Safe Logo + Colors)")
 
     text = gr.Textbox(label="Enter Text / URL")
 
@@ -79,14 +88,6 @@ with gr.Blocks(theme=gr.themes.Soft(primary_hue="blue", neutral_hue="slate")) as
 
     output = gr.Image(label="QR Code Preview")
 
-    with gr.Accordion("Guideline", open=False):
-        gr.Markdown("""
-        **Tips for Best Results**
-        - Use small logo (max 15% of QR size)  
-        - Keep error correction high  
-        - Use strong contrast between FG/BG  
-        """)
-
     generate.click(generate_qr, [text, fg_color, bg_color, logo], output)
     download.click(save_qr, [text, fg_color, bg_color, logo], gr.File())