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Re: PSA Using Python Pillow to foil camera image PRNU fingerprinting

From Piergiorgio Sartor <piergiorgio.sartor.this.should.not.be.used@nexgo.REMOVETHIS.de>
Newsgroups rec.photo.digital, comp.lang.python
Subject Re: PSA Using Python Pillow to foil camera image PRNU fingerprinting
Date 2026-07-31 09:35 +0200
Organization A noiseless patient Spider
Message-ID <pqvtjm-u55.ln1@lazy.lzy> (permalink)
References <114en2t$7bu$1@nnrp.usenet.blueworldhosting.com> <114f0l7$1is0l$1@dont-email.me> <114frd8$2okp$1@nnrp.usenet.blueworldhosting.com>

Cross-posted to 2 groups.

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On 30/07/2026 17.42, Maria Sophia wrote:
[...]
> Right now, the PRNU-scrubbing script pipeline is running two full
> destructive passes, each intended to disrupt PRNU by performing
>   a. blur
>   b. rotate
>   c. crop
>   d. resize
>   e. inject noise
> But that doubly scrubbed image is a bit to destroyed to be usable.	
Have you tried to de-noise first, with
something like BM3D, and then re-noise?

For both operations likely some noise
parameter is required.

I know this is not the same as the PRNU,
but de-noising will reduce / remove any
uncorrelated information.

Re-noise will make it plausible.

bye,

-- 

piergiorgio

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Thread

PSA Using Python Pillow to foil camera image PRNU fingerprinting Maria Sophia <mariasophia@comprehension.com> - 2026-07-29 22:22 -0700
  Re: PSA Using Python Pillow to foil camera image PRNU fingerprinting Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-07-30 08:06 +0000
    Re: PSA Using Python Pillow to foil camera image PRNU fingerprinting Maria Sophia <mariasophia@comprehension.com> - 2026-07-30 07:42 -0800
      Re: PSA Using Python Pillow to foil camera image PRNU fingerprinting Piergiorgio Sartor <piergiorgio.sartor.this.should.not.be.used@nexgo.REMOVETHIS.de> - 2026-07-31 09:35 +0200
        Re: PSA Using Python Pillow to foil camera image PRNU fingerprinting Maria Sophia <mariasophia@comprehension.com> - 2026-07-31 13:59 -0800
          Re: PSA Using Python Pillow to foil camera image PRNU fingerprinting Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-07-31 22:49 +0000
            Re: PSA Using Python Pillow to foil camera image PRNU fingerprinting Maria Sophia <mariasophia@comprehension.com> - 2026-07-31 15:13 -0800
              Re: PSA Using Python Pillow to foil camera image PRNU fingerprinting Piergiorgio Sartor <piergiorgio.sartor.this.should.not.be.used@nexgo.REMOVETHIS.de> - 2026-08-01 11:48 +0200
                Re: PSA Using Python Pillow to foil camera image PRNU fingerprinting Maria Sophia <mariasophia@comprehension.com> - 2026-08-01 09:42 -0800
                Re: PSA Using Python Pillow to foil camera image PRNU fingerprinting Maria Sophia <mariasophia@comprehension.com> - 2026-08-03 09:28 -0800
                Re: PSA Using Python Pillow to foil camera image PRNU fingerprinting Chris <ithinkiam@gmail.com> - 2026-08-02 17:48 +0000
                Re: PSA Using Python Pillow to foil camera image PRNU fingerprinting Maria Sophia <mariasophia@comprehension.com> - 2026-08-02 11:18 -0800
                Re: PSA Using Python Pillow to foil camera image PRNU fingerprinting Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-08-02 22:54 +0000
                Re: PSA Using Python Pillow to foil camera image PRNU fingerprinting Maria Sophia <mariasophia@comprehension.com> - 2026-08-03 09:20 -0800
                Re: PSA Using Python Pillow to foil camera image PRNU fingerprinting Chris <ithinkiam@gmail.com> - 2026-08-03 17:50 +0000
                Re: PSA Using Python Pillow to foil camera image PRNU fingerprinting Maria Sophia <mariasophia@comprehension.com> - 2026-08-20 09:03 -0800
                Re: PSA Using Python Pillow to foil camera image PRNU fingerprinting danny burstein <dannyb@panix.com> - 2026-08-20 17:28 +0000
                How to increase your "Convincingness" [Anthropic AI Text Hacked] (Was: PSA Using Python Pillow to foil camera image PRNU fingerprinting) Mild Shock <janburse@fastmail.fm> - 2026-08-20 19:30 +0200
      Re: PSA Using Python Pillow to foil camera image PRNU fingerprinting Maria Sophia <mariasophia@comprehension.com> - 2026-07-31 14:10 -0800
        Re: PSA Using Python Pillow to foil camera image PRNU fingerprinting Maria Sophia <mariasophia@comprehension.com> - 2026-07-31 14:51 -0800
          Re: PSA Using Python Pillow to foil camera image PRNU fingerprinting Maria Sophia <mariasophia@comprehension.com> - 2026-07-31 15:02 -0800

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