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ToPILImage in PyTorch (4)

Buy Me a Coffee☕ *Memos: My post explains ToPILImage() about no arguments. My post explains ToPILImage() about mode argument (1). My post explains ToPILImage() about mode argument (2). ToPILImage() can convert an Image([..., C, H, W…

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Buy Me a Coffee☕



*Memos:





ToPILImage() can convert an Image([..., C, H, W]), tensor or ndarray to a PIL(Pillow library) Image([H, W, C]) and doesn't scale its values to [0.0, 1.0] as shown below. *It's about mode argument (3):




from torchvision.datasets import OxfordIIITPet
from torchvision.transforms.v2 import ToPILImage, ToImage, PILToTensor
import torch

Image_data = OxfordIIITPet(
root="data",
transform=ToImage()
)

Tensor_data = OxfordIIITPet(
root="data",
transform=PILToTensor()
)

def show_images(im, m=None):
if m == None:
m = [None for _ in range(len(im))]
if len(im) > len(m):
for _ in range(len(im)-len(m)):
m.append(None)
plt.figure(figsize=[13, 6])
for i in range(len(im)):
image = im[i]
if torch.is_tensor(image):
dpart = str(image.dtype).split(".")[1]
elif isinstance(image, np.ndarray):
dpart = str(image.dtype)
title = "m" + str(m[i]) + "_PILImage from " \
+ type(image).__name__+ "(" + dpart + ")"
plt.subplot(1, 3, (i+1))
tp = ToPILImage(mode=m[i])
plt.title(label=title, y=1, fontsize=14)
plt.imshow(X=tp(image))
plt.xticks(ticks=[])
plt.yticks(ticks=[])
plt.tight_layout()
plt.show()

show_images(im=[Image_data[0][0], Tensor_data[0][0]], m=["RGB", "RGB"])
show_images(im=[Image_data[0][0], Tensor_data[0][0]], m=["YCbCr", "YCbCr"])
show_images(im=[Image_data[0][0], Tensor_data[0][0]], m=["HSV", "HSV"])
print()
show_images(im=[torch.tensor([[[0]], [[1]]])], m=["LA"]) # int64
show_images(im=[torch.tensor([[[0]], [[1]], [[2]]]),
torch.tensor([[[0]], [[1]], [[2]]]),
torch.tensor([[[0]], [[1]], [[2]]])],
m=["RGB", "YCbCr", "HSV"])
show_images(im=[torch.tensor([[[0]], [[1]], [[2]], [[3]]]),
torch.tensor([[[0]], [[1]], [[2]], [[3]]]),
torch.tensor([[[0]], [[1]], [[2]], [[3]]])],
m=["RGBA", "CMYK", "RGBX"])
print()
show_images(im=[torch.tensor([[[0]]], dtype=torch.int32),
torch.tensor([[[0]], [[1]]], dtype=torch.int32)],
m=["I", "LA"])
show_images(im=[torch.tensor([[[0]], [[1]], [[2]]], dtype=torch.int32),
torch.tensor([[[0]], [[1]], [[2]]], dtype=torch.int32),
torch.tensor([[[0]], [[1]], [[2]]], dtype=torch.int32)],
m=["RGB", "YCbCr", "HSV"])
show_images(im=[torch.tensor([[[0]], [[1]], [[2]], [[3]]], dtype=torch.int32),
torch.tensor([[[0]], [[1]], [[2]], [[3]]], dtype=torch.int32),
torch.tensor([[[0]], [[1]], [[2]], [[3]]], dtype=torch.int32)],
m=["RGBA", "CMYK", "RGBX"])
print()
show_images(im=[torch.tensor([[[0.]]]), # float32
torch.tensor([[[0.]], [[1.]]])], m=["L", "LA"])
show_images(im=[torch.tensor([[[0.]], [[1.]], [[2.]]]),
torch.tensor([[[0.]], [[1.]], [[2.]]]),
torch.tensor([[[0.]], [[1.]], [[2.]]])],
m=["RGB", "YCbCr", "HSV"])
show_images(im=[torch.tensor([[[0.]], [[1.]], [[2.]], [[3.]]]),
torch.tensor([[[0.]], [[1.]], [[2.]], [[3.]]]),
torch.tensor([[[0.]], [[1.]], [[2.]], [[3.]]])],
m=["RGBA", "CMYK", "RGBX"])
print()
show_images(im=[torch.tensor([[[0.]]], dtype=torch.float64),
torch.tensor([[[0.]], [[1.]]], dtype=torch.float64)],
m=["L", "LA"])
show_images(im=[torch.tensor([[[0.]], [[1.]], [[2.]]], dtype=torch.float64),
torch.tensor([[[0.]], [[1.]], [[2.]]], dtype=torch.float64),
torch.tensor([[[0.]], [[1.]], [[2.]]], dtype=torch.float64)],
m=["RGB", "YCbCr", "HSV"])
show_images(im=[torch.tensor([[[0.]], [[1.]], [[2.]], [[3.]]],
dtype=torch.float64),
torch.tensor([[[0.]], [[1.]], [[2.]], [[3.]]],
dtype=torch.float64),
torch.tensor([[[0.]], [[1.]], [[2.]], [[3.]]],
dtype=torch.float64)],
m=["RGBA", "CMYK", "RGBX"])
print()
show_images(im=[torch.tensor([[[0.+0.j]], [[1.+0.j]]])], # complex64
m=["LA"])
show_images(im=[torch.tensor([[[0.+0.j]], [[1.+0.j]], [[2.+0.j]]]),
torch.tensor([[[0.+0.j]], [[1.+0.j]], [[2.+0.j]]]),
torch.tensor([[[0.+0.j]], [[1.+0.j]], [[2.+0.j]]])],
m=["RGB", "YCbCr", "HSV"])
show_images(im=[torch.tensor([[[0.+0.j]], [[1.+0.j]], [[2.+0.j]],
[[3.+0.j]]]),
torch.tensor([[[0.+0.j]], [[1.+0.j]], [[2.+0.j]],
[[3.+0.j]]]),
torch.tensor([[[0.+0.j]], [[1.+0.j]], [[2.+0.j]],
[[3.+0.j]]])], m=["RGBA", "CMYK", "RGBX"])
print()
show_images(im=[torch.tensor([[[True]], [[False]]])], m=["LA"])
show_images(im=[torch.tensor([[[True]], [[False]], [[True]]]), # bool
torch.tensor([[[True]], [[False]], [[True]]]),
torch.tensor([[[True]], [[False]], [[True]]])],
m=["RGB", "YCbCr", "HSV"])
show_images(im=[torch.tensor([[[True]], [[False]], [[True]], [[False]]]),
torch.tensor([[[True]], [[False]], [[True]], [[False]]]),
torch.tensor([[[True]], [[False]], [[True]], [[False]]])],
m=["RGBA", "CMYK", "RGBX"])






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1. Sofort-Triage & Abwehrmaßnahmen

SOC Incident Playbook: Vulnerability Remediation & Verification
Syntax validiert (0 Fehler)
title: Detect Exploitation - ToPILImage in PyTorch (4)
id: 66b2fd68-e8ae-4340-849b-ca15f8850234
status: experimental
description: Automatisch generierte SIEM-Erkennungsregel basierend auf CTI Intelligence
references:
  - https://tsecurity.de/
author: iShareStuff CTI Automated Detection Engine
date: 2026-09-25
logsource:
  category: network_connection
  product: any
detection:
  selection:
      CommandLine|contains:
        - 'exploit'
  condition: selection
falsepositives:
  - Legitime administrative Zugriffe oder Penetrationstests
level: high
tags:
  - attack.initial_access
Syntax validiert (0 Fehler)
rule CTI_Threat_Indicator {
    meta:
        author = "iShareStuff CTI Automated Detection Engine"
        date = "2026-09-25"
        description = "YARA Signature for "
    strings:
        $str = "ToPILImage in PyTorch (4)" ascii wide
    condition:
        any of them
}
Syntax validiert (0 Fehler)
index=security sourcetype IN ("cisco:asa", "pan:traffic", "zeek_conn", "suricata", "WinEventLog:Security")
("ToPILImage in PyTorch 4")
| stats count earliest(_time) as first_seen latest(_time) as last_seen by src_ip, dest_ip, dest_host, signature
| eval first_seen=strftime(first_seen, "%Y-%m-%d %H:%M:%S"), last_seen=strftime(last_seen, "%Y-%m-%d %H:%M:%S")
| sort - count
Syntax validiert (0 Fehler)
message: "*ToPILImage in PyTorch 4*"
Syntax validiert (0 Fehler)
CommonSecurityLog
| where Message has "ToPILImage in PyTorch 4"
| summarize EventCount = count(), FirstSeen = min(TimeGenerated), LastSeen = max(TimeGenerated) by SourceIP, DestinationIP, DestinationPort, Activity
| extend DetectionRule = "iShareStuff-CTI-Compiled"
| sort by EventCount desc

2. Cyber Threat Intelligence & Forensik

🎯
MITRE ATT&CK Matrix Navigator 14 Taktiken
Reconnaissance
-
Resource Development
-
Initial Access
Execution
Persistence
-
Privilege Escalation
Defense Evasion
Credential Access
-
Discovery
-
Lateral Movement
-
Collection
-
Command and Control
Exfiltration
-
Impact
tsecurity.de Cognitive Threat RAG
Fokus-Vektor:

Kognitive Analyse für identifizierte Bedrohung: Erhöhte Bedrohungslage im Bereich ToPILImage in PyTorch (4).... Basierend auf 368k Vektor-Korrelationen werden sofortige Isolationsmaßnahmen für betroffene Endpunkte empfohlen.

🛡️ Angriffsfläche & Exposure

Netzwerk/Remote-Zugriff ohne Vorauthentifizierung möglich.

⚡ Empfohlene Sofortmaßnahmen
  • 1. Perimeter-Inspektion: Relevante Portfreigaben und exponierte Endpunkte unverzüglich scannen.
  • 2. Patch-Applikation: Hersteller-Hotfix einspielen oder betroffene Daemons in isolierte DMZ-Segmente überführen.
  • 3. Telemetrie & EDR-Alerts: Prozessaufrufe und Child-Processes auf anomale Shell-Spawns überwachen.
🔗 Semantisch verwandte Zero-Days MariaDB 11.7 VEC
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