Changing image on click in discord.

hide-image.py

import matplotlib.pyplot as plt

# don't fucking ask me how this works
magic_header = """
00 00 00 04 67 41 4D 41 00 00 27 10 4C 57 C2 4C 

00 00 00 20 63 48 52 4D 00 00 87 0B 00 00 8C 0F
00 00 FD 51 00 00 81 40 00 00 7D 76 00 00 E9 90
00 00 3C E5 00 00 19 CD 21 AE 5C 4A 

00 00 00 DB 69 43 43 50 49 43 43 20 50 72 6F 66 
69 6C 65 00 00 28 CF 63 60 60 7C C0 00 04 4C 40 
9C 9B 57 52 14 E4 EE A4 10 11 19 A5 C0 7E 81 81 
11 08 C1 20 31 B9 B8 C0 37 D8 2D 84 01 27 F8 76 
0D A2 F6 B2 2E 03 E9 80 B3 BC A4 A0 04 48 7F 00 
62 91 A2 90 20 67 A0 9B 58 80 6C BE 74 08 5B 04 
C4 4E 82 B0 55 40 EC 22 A0 03 81 6C 13 90 FA 74 
08 DB 03 C4 4E 82 B0 63 40 EC E4 82 22 A0 99 8C 
05 20 F3 53 52 8B 93 81 EC 06 20 3B 01 E4 37 88 
B5 9F 03 C1 6E 66 14 3B 93 5C 5A 54 06 75 0B 23 
17 90 20 C4 47 98 91 3F 9F 81 C1 E2 0B 03 03 F3 
04 84 58 D2 54 06 86 ED 6D 0C 0C 12 B7 11 62 2A 
0B 19 18 F8 5B 19 18 B6 5D 2D 49 AD 28 41 F6 3C 
C4 6D 60 C0 96 5F 00 0C 7D 06 6A 02 06 06 00 AF 
CB 36 E4 87 53 EC 66
"""

# clean up the header
magic_header = bytes(int(x, 16) for x in magic_header.strip().replace('\n', ' ').split(' ') if x)
header_injection_offset = 0x00000021 # PNG header and IHDR are fixed lengths
output_file = 'output.png'

busy_image = plt.imread('Wheres-waldo-wally-google-maps-380.png')
inj = plt.imread('kitty.png')
if inj.shape[0] > 600 or inj.shape[1] > 800:
    print('Warning, shape too large, might not work on click!')
print(inj.shape)

# crop the busy image and turn down the brightness
busy_image = busy_image[:inj.shape[0], :inj.shape[1], :]
busy_image = busy_image * (0.5647059/busy_image.max())

# inject the image
x = 4
busy_image[::2, ::2, :3] = (1./x * inj[::2,::2,:3]) + (1-1./x)

plt.imsave(output_file,busy_image)

# inject the black magic voodoo header
image_data = open(output_file, 'rb').read()
image_data = image_data[:header_injection_offset] + magic_header + image_data[header_injection_offset:]
open(output_file, 'wb').write(image_data)

forked it and added args cause why not lol

Is there a way to do this with bigger images?