Lost Judgment has been one of my favorite visuals ...

python
from PIL import Image
paths=["/mnt/data/Crane.png","/mnt/data/Snake.png","/mnt/data/Tiger.png"]
for p in paths:
    im=Image.open(p).convert("RGBA")
    print(p, im.size)

python
import matplotlib.pyplot as plt
from PIL import Image
fig,axs=plt.subplots(1,3,figsize=(12,4))
for ax,p in zip(axs,paths):
    im=Image.open(p)
    ax.imshow(im.resize((im.width*4, im.height*4), Image.NEAREST))
    ax.axis('off')
plt.show()

python
import os, struct, zlib, binascii
for p in paths:
    data=open(p,'rb').read()
    print("\n",os.path.basename(p),len(data),data[:8])
    # chunks
    off=8
    while off<len(data):
        ln=struct.unpack(">I",data[off:off+4])[0]
        typ=data[off+4:off+8]
        print(typ,ln)
        off += 12+ln

python
for p in paths:
    im=Image.open(p)
    print(p, im.mode, im.info)

python
import numpy as np, matplotlib.pyplot as plt, os
for p in paths:
    a=np.array(Image.open(p))[:,:,3]
    print(os.path.basename(p), np.unique(a)[:20], len(np.unique(a)), a.min(), a.max())
    # counts most common
    vals,c=np.unique(a,return_counts=True)
    print(sorted(zip(c,vals),reverse=True)[:10])

python
from PIL import Image, ImageOps, ImageDraw, ImageFont
import numpy as np, os, math
ims={os.path.basename(p).split('.')[0]:np.array(Image.open(p).convert('RGB')) for p in paths}
# create montage same-color channel bitplanes
channel_idx={'Tiger':0,'Snake':1,'Crane':2}
for name,arr in ims.items():
    c=channel_idx[name]
    tiles=[]
    for b in range(8):
        bit=((arr[:,:,c]>>b)&1)*255
        tile=Image.fromarray(bit.astype(np.uint8)).resize((arr.shape[1]*3,arr.shape[0]*3),Image.NEAREST).convert('RGB')
        d=ImageDraw.Draw(tile); d.rectangle([0,0,70,20],fill='white'); d.text((3,3),f'bit {b}',fill='black')
        tiles.append(tile)
    W=max(t.width for t in tiles)*4; H=max(t.height for t in tiles)*2
    out=Image.new('RGB',(W,H),'gray')
    for i,t in enumerate(tiles):
        out.paste(t,((i%4)*t.width,(i//4)*t.height))
    out.save(f'/mnt/data/{name}_bitplanes.png')
    print(f'/mnt/data/{name}_bitplanes.png')

python
from PIL import Image, ImageOps, ImageDraw, ImageFont
import numpy as np, os, math
ims={os.path.basename(p).split('.')[0]:np.array(Image.open(p).convert('RGB')) for p in paths}
# create montage same-color channel bitplanes
channel_idx={'Tiger':0,'Snake':1,'Crane':2}
for name,arr in ims.items():
    c=channel_idx[name]
    tiles=[]
    for b in range(8):
        bit=((arr[:,:,c]>>b)&1)*255
        tile=Image.fromarray(bit.astype(np.uint8)).resize((arr.shape[1]*3,arr.shape[0]*3),Image.NEAREST).convert('RGB')
        d=ImageDraw.Draw(tile); d.rectangle([0,0,70,20],fill='white'); d.text((3,3),f'bit {b}',fill='black')
        tiles.append(tile)
    W=max(t.width for t in tiles)*4; H=max(t.height for t in tiles)*2
    out=Image.new('RGB',(W,H),'gray')
    for i,t in enumerate(tiles):
        out.paste(t,((i%4)*t.width,(i//4)*t.height))
    out.save(f'/mnt/data/{name}_bitplanes.png')
    print(f'/mnt/data/{name}_bitplanes.png')


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