Dear reader,
I just released version 6.1.0 of tumblelog, a static microblog generator
which generates HTML5, an RSS feed, a JSON feed and optionally tag pages
from a single Markdown file with additional directives.
Example microblog: https://plu.com/
GitHub: https://github.com/john-bokma
Lawrence D'Oliveiro wrote:
> On Wed, 29 Jul 2026 09:31:42 -0700, Maria Sophia wrote:
>
>> Python Pillow was used to try to foil AI image detection
>> https://arstechnica.com/ai/2026/07/tested-google-synthid-works-great-but-labeling-ai-content-may-be-a-losing-game/
>>
>> I'm surprised it's so hard,
Python Pillow was used to try to foil AI image detection
https://arstechnica.com/ai/2026/07/tested-google-synthid-works-great-but-labeling-ai-content-may-be-a-losing-game/
I'm surprised it's so hard, but where it matters is for years,
we've been "destroying" images so that they can't be correlate
Today, this article showed up in my technical-news feed about using Python
Pillow to discern the reliability of watermarking in AI-generated images.
https://arstechnica.com/ai/2026/07/tested-google-synthid-works-great-but-labeling-ai-content-may-be-a-losing-game/
As is my wont, I hacked out a Pyt
Piergiorgio Sartor wrote:
> 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.
>
> R
Lawrence D'Oliveiro wrote:
> On Wed, 29 Jul 2026 22:22:37 -0700, Maria Sophia wrote:
>
>> Having never used Python Pillow, and while I was already writing
>> code, I decided to try to use it to foil camera sensor PRNU
>> fingerprinting.
>
> This was the first I had heard of such a thing, so I loo
Dear reader,
I just released version 6.2.0 of tumblelog, a static microblog generator
which generates HTML5, an RSS feed, a JSON feed and optionally tag pages
from a single Markdown file with additional directives.
I have mostly updated the Python version: dataclasses and type hints.
Example
Piergiorgio Sartor
wrote:
> On 01/08/2026 01.13, Maria Sophia wrote:
> [...]
>
> I'm under the impression there is some
> confusion here.
To be expected considering who the OP is...
> On the other hand, PRNU will have some
> spatial statistical properties, even if
> it is fixed for a given sens
Maria Sophia wrote:
> 1. Run adbcopy.bat to copy your images over Wi-Fi to your desktop
For those who don't have the aforementioned adbcopy.bat, here it is.
I wrote it for my filespecs, so you need to change the defaults.
It is designed to copy images to/from desktop/phone using Wi-Fi or USB.
Mos
Lawrence D'Oliveiro wrote:
>> With respect to the Pillow imaging tools, the part I'm experimenting
>> with is how best to easily break that PRNU fingerprint with image
>> manipulation.
>
> You mean in the general case, for an image obtained from an unknown
> camera?
>
> Because if you only want t
On 2026-07-29, Lawrence D’Oliveiro wrote:
> On Sat, 25 Jul 2026 15:59:03 GMT, Gilmeh Serda wrote:
>> On Sat, 25 Jul 2026 04:33:42 - (UTC), Lawrence D’Oliveiro wrote:
>>> I often copy and paste links into the following script for this
>>> reason.
>>
>> Why not use pyperclip? Then you can just u
Piergiorgio Sartor wrote:
> I'm under the impression there is some
> confusion here.
> It seems to me there is a lot to explore way
> beyond the simple image modification algorithms.
Hi Piergiorgio,
Thank you for your expert input, as you obviously understand the topic
better than I do, by far, s
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
Lawrence D'Oliveiro wrote:
>> ... but PRNU isn't random noise.
>
> It is random noise, but only in the spatial domain; it is not
> time-varying.
Thank you for that correction as all of this is brand new to me.
Regarding my mis-statement of:
"I never heard of BM3D denoising/renoising until you m
Chris wrote:
>> I'm under the impression there is some
>> confusion here.
>
> To be expected considering who the OP is...
I'm curious, Chris, why you always feel so desperate to try to insult me?
--
https://mail.python.org/mailman3//lists/python-list.python.org
Maria Sophia wrote:
> But how does this sound as a game plan for creating that flow on Windows?
> 1. Build a reference PRNU fingerprint from a folder of calibration images
> 2. Subtract that fingerprint from a target image we want to publish
Here's the first generation of an attempt to follow up o
On 01/08/2026 01.13, Maria Sophia wrote:
[...]
I'm under the impression there is some
confusion here.
De-noising algorithms, like BM3D or any
de-noising auto-encoder, de-noise just
one image.
There is no temporal noise involved, it
is only spatial, since the algorithms
see only one, single, imag
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