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Update app.py

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pliny
2024-10-12 18:23:33 -04:00
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parent d56b5dbacc
commit f24660c059
1 changed files with 14 additions and 11 deletions
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app.py
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@@ -5,26 +5,29 @@ from PIL import Image
def encode_text_into_image(image_path, text, output_path):
img = Image.open(image_path)
img = img.convert("RGBA") # Ensure image has alpha channel
binary_text = ''.join(format(ord(char), '08b') for char in text) + '00000000' # Add terminator
img = img.convert("RGBA") # Ensure image has an alpha channel
# Convert text to binary and add redundancy by repeating the message multiple times
binary_text = ''.join(format(ord(char), '08b') for char in text) + '00000000' # Terminator
repeated_binary_text = binary_text * 5 # Repeat the binary text 5 times for redundancy
width, height = img.size
index = 0
repeat_count = 3 # Embed the text multiple times for redundancy
# Embed across all color channels (R, G, B, and A) with redundancy
# Embed the binary text across the RGB and Alpha channels for redundancy
for y in range(height):
for x in range(width):
if index < len(binary_text):
if index < len(repeated_binary_text):
r, g, b, a = img.getpixel((x, y))
# Modify the least significant bits of R, G, B, and A channels for redundancy
r = (r & 0xFE) | int(binary_text[index % len(binary_text)])
g = (g & 0xFE) | int(binary_text[(index + 1) % len(binary_text)])
b = (b & 0xFE) | int(binary_text[(index + 2) % len(binary_text)])
a = (a & 0xFE) | int(binary_text[(index + 3) % len(binary_text)])
r = (r & 0xFE) | int(repeated_binary_text[index])
g = (g & 0xFE) | int(repeated_binary_text[(index + 1) % len(repeated_binary_text)])
b = (b & 0xFE) | int(repeated_binary_text[(index + 2) % len(repeated_binary_text)])
a = (a & 0xFE) | int(repeated_binary_text[(index + 3) % len(repeated_binary_text)])
img.putpixel((x, y), (r, g, b, a))
index += 4 # Move to the next set of bits
index += 4 # Move to the next 4 bits (one for each channel)
# Save the encoded image and ensure it is within Twitter's size limit by compressing
img.save(output_path, optimize=True, format="PNG")