3 ms·

A good portion of the world and Lenna herself have asked that image be retired.

by JayGuerette 8mo ago

DiggyJohnson 8mo ago
Who is Lenna?
- deleted 8mo ago
  [deleted]
- Conscat 8mo ago
  The eponymous woman in the Playboy photograph.
- kikoreis 8mo ago
  https://en.wikipedia.org/wiki/Lenna https://en.wikipedia.org/wiki/Lenna
- _ache_ 8mo ago
  A copyrighted image of a nude model elected for no obvious reason has a test image in the University of South California by some pervs and then used in a lot of papers as a test image. Or, a standard cropped image of a playgirl used in the field of image processing.
  - groundzeros2015 8mo ago
    It’s perverted now?
    - monocasa 8mo ago
      It's literally cropped pornography.
      - groundzeros2015 8mo ago
        Is a nude picture perverted?
        monocasa 8mo ago
        [dead]
        _ache_ 8mo ago
        No. That is not the question. The question is "do you hang out with an erotic magazine at work ?" and "Is it normal ?"
        groundzeros2015 8mo ago
        No I think the social context is inappropriate. However I do not think possessing or liking such a picture is perverted. I also do not thinking a cropped version of the picture which has no sexual content is inappropriate.
  - TGower 8mo ago
    "elected for no obvious reason" isn't quite right, as a test image for computer graphics it has regions of very high frequency detail and regions of very low frequency detail which make it easier to spot various compression artifacts, and it makes a good study for edge detection, with both very clear edges along the outline, but more subjective edges in the feathering.
    - _ache_ 8mo ago
      It's redish. Ok it has a blur and details on the foreground but could have been any image with blurred background and a face. "very low frequency detail", we are talking about a 512x512 picture here, it has low and high frequency details (FFT speaking) like most photos. "Good for edges detection" doesn't mean anything. Like, is the image good for edge detection or the algorithm is good at detecting edges ? What does "subjective edges" even mean ? Does it mean hard to spot ? That looks like technical reasons but it just noise. They literally grab a playboy magazine and decided it was well enough (and indeed, it wasn't that bad, yes). Still not professional. The message is "We have playboy magazines at work and we are proud of it".
      - TGower 8mo ago
        Try out running different edge detection algorithms on that image and you will see that there is a lot of disagreement amongst them in the feathering region. Exploring what the differences are, and how the algorithms lead to those differences helps build intuition about the range of things we might call an "edge", and which algorithm is appropriate for a particular task at hand.
superb_dev 8mo ago
Which image?
tomovo 8mo ago
Now at least parts of it are paged out...
groundzeros2015 8mo ago
“Good portion of the world” is probably a handful of people. Her full quote btw: “Once upon a time, I was the centerfold of Playboy,” says the former model in the new documentary Losing Lena. “But I retired from modeling a long time ago. It’s time I retired from tech, too.”
- monocasa 8mo ago
  Well, for instance, it's the official policy of the IEEE to not allow this image in new publications. And they're far from the only journal (or set of journals) that have this policy.
  - groundzeros2015 8mo ago
    Of course. Most people don’t care and a few vocal ones do.
    - monocasa 8mo ago
      As in most organizations that would know about it and come into contact with it.
      - groundzeros2015 8mo ago
        I think my comment is true of the graphics programming/research community.
        monocasa 8mo ago
        Given that it's use is banned in most academic journals dealing with imaging/graphics, you'd be wrong. And as several journals have brought up in the banning, it's not even good at what it purports to be for these use cases. It's a pretty poor quality image to start off with due to being scanned to a digital file with 1970s technology. At this point the ones defending its continued use are the vocal minority on some weird anti-woke crusade that doesn't even make sense on technical grounds.
incanus77 8mo ago
Best replacement I've seen: https://mortenhannemose.github.io/lena/ https://mortenhannemose.github.io/lena/

A good portion of the world and Lenna herself have asked that image be retired.

DiggyJohnson 8mo ago

Who is Lenna?

deleted 8mo ago
[deleted]
Conscat 8mo ago
The eponymous woman in the Playboy photograph.
kikoreis 8mo ago
https://en.wikipedia.org/wiki/Lenna https://en.wikipedia.org/wiki/Lenna
_ache_ 8mo ago
A copyrighted image of a nude model elected for no obvious reason has a test image in the University of South California by some pervs and then used in a lot of papers as a test image. Or, a standard cropped image of a playgirl used in the field of image processing.
- groundzeros2015 8mo ago
  It’s perverted now?
  - monocasa 8mo ago
    It's literally cropped pornography.
    - groundzeros2015 8mo ago
      Is a nude picture perverted?
      - monocasa 8mo ago
        [dead]
      - _ache_ 8mo ago
        No. That is not the question. The question is "do you hang out with an erotic magazine at work ?" and "Is it normal ?"
        groundzeros2015 8mo ago
        No I think the social context is inappropriate. However I do not think possessing or liking such a picture is perverted. I also do not thinking a cropped version of the picture which has no sexual content is inappropriate.
- TGower 8mo ago
  "elected for no obvious reason" isn't quite right, as a test image for computer graphics it has regions of very high frequency detail and regions of very low frequency detail which make it easier to spot various compression artifacts, and it makes a good study for edge detection, with both very clear edges along the outline, but more subjective edges in the feathering.
  - _ache_ 8mo ago
    It's redish. Ok it has a blur and details on the foreground but could have been any image with blurred background and a face. "very low frequency detail", we are talking about a 512x512 picture here, it has low and high frequency details (FFT speaking) like most photos. "Good for edges detection" doesn't mean anything. Like, is the image good for edge detection or the algorithm is good at detecting edges ? What does "subjective edges" even mean ? Does it mean hard to spot ? That looks like technical reasons but it just noise. They literally grab a playboy magazine and decided it was well enough (and indeed, it wasn't that bad, yes). Still not professional. The message is "We have playboy magazines at work and we are proud of it".
    - TGower 8mo ago
      Try out running different edge detection algorithms on that image and you will see that there is a lot of disagreement amongst them in the feathering region. Exploring what the differences are, and how the algorithms lead to those differences helps build intuition about the range of things we might call an "edge", and which algorithm is appropriate for a particular task at hand.

superb_dev 8mo ago

Which image?

tomovo 8mo ago

Now at least parts of it are paged out...

groundzeros2015 8mo ago

“Good portion of the world” is probably a handful of people. Her full quote btw: “Once upon a time, I was the centerfold of Playboy,” says the former model in the new documentary Losing Lena. “But I retired from modeling a long time ago. It’s time I retired from tech, too.”

monocasa 8mo ago
Well, for instance, it's the official policy of the IEEE to not allow this image in new publications. And they're far from the only journal (or set of journals) that have this policy.
- groundzeros2015 8mo ago
  Of course. Most people don’t care and a few vocal ones do.
  - monocasa 8mo ago
    As in most organizations that would know about it and come into contact with it.
    - groundzeros2015 8mo ago
      I think my comment is true of the graphics programming/research community.
      - monocasa 8mo ago
        Given that it's use is banned in most academic journals dealing with imaging/graphics, you'd be wrong. And as several journals have brought up in the banning, it's not even good at what it purports to be for these use cases. It's a pretty poor quality image to start off with due to being scanned to a digital file with 1970s technology. At this point the ones defending its continued use are the vocal minority on some weird anti-woke crusade that doesn't even make sense on technical grounds.

incanus77 8mo ago

Best replacement I've seen: https://mortenhannemose.github.io/lena/ https://mortenhannemose.github.io/lena/