The identity of the image sample "Rena" is the playmate who recorded the most sales number of "PLAYBOY" magazine

Women of the above image are often seen in image processing related papers and sample images of image processing software as announced at academic societiesExample 1,Example 2,Example 3,Example 4It feels like.

As I often see it from long ago, I thought "Who the hell are you?", And as a result I examined this image data as "RenaIt is called "Lena soda burg" exactly. He was one of the play mates posted in that "PLAYBOY" magazine. Moreover, the November 1972 issue on which she was postedApproximately 7.16 million copiesIt is also sold (it is amazing that it is not the circulation circle but the actual sold circulation is great), it is said that it is recorded as the most sales circle of "PLAYBOY" magazine.

In short, it is supposed to be using the gravure published as a magazine as a sample of image processing, but how did it come about under what circumstances? Details are as below.
The details about this image are basically summarized in the following sites basically.

Lenna 97: A Complete Story of Lenna

This image is called "Lenna" or "Lena" and it is widely used around the world as a standard test image. Its triggers etc. are easily summarized on the following page.

Rena (image data) - Wikipedia

According to the testimony of Professor Alexander Souchac of the University of Southern California,

"In June or July of 1973, graduate students and laboratory managers at the Signal and Image Processing Institute (SIPI) (of the same university) scan the images to be posted in papers published at academic conferences I was bored with the test image stock for the boring television standards dating back in the early 1960's, they guarantee a glossy and good output dynamic range Image, and a human face were desired.

Then just then, someone brought a Playboy magazine by chance. Suddenly they cut out one-third of the women's pictures of the center gravure, and Muirhead Wirephoto (equipped with an A / D converter for each of the red, green, and blue channels and connected to a Hewlett-Packard 2100 minicomputer) I wound it around the drum of the Scanner.

Muirhead had a fixed resolution of 100 lines per inch, but because they wanted a 512 x 512 image, we restricted the scan to the top 5.12 inches of the image, so the image just broke on the shoulder of the model That's why "

This is the cover of the November 1972 issue of that time


As for what kind of circumstances the use was licensed, it seems to have been as follows.

The use of this image initially caused controversy. Certain people were concerned about their colorful content of Playboy magazine, and Playboy first warned that they would prosecute users if they used images without permission. But Playboy then ceased warning and allowed the use of images for public reasons.

You can see the full image of what kind of image the actual whole body image before clipping is on the following page. Three size 86 - 66 - 91, height 168 cm, weight 50 kg.

※ Because it is a naked image, browse notice
The Complete Lenna Story
http://www.lenna.org/full/len_full.html


She got married after this and got 3 children, currently living near Stockholm, he seems to work at a government-owned liquor store. Also, Wikipedia's "Lena Sodaberg"According to the item of 1997 Society for Imaging Science and Technology 50th anniversary commemorative meeting invited as guests, seems to have been very busy signing, taking photographs and introducing themselves, The situation at that time is "Imaging Experts Meet Lenna in Person"It is introduced with images at.

Lena Sodaberg himself on the left in commemoration of the 50th anniversary


In chat


I am staring at the documents and photos at the time. This scene itself is deep emotion.


Regarding the reason why this image still survives as a test image,This pageThen we explain it as follows.

Since Lena had properties suitable for research on various image processing, I read somewhere that he survived as a test image. It is such a feeling when putting together the dumb memory of that theory and the "property suitable for research subject" who forcibly thought.

· It is a color image (although grayscale images are also commonly used).
· Includes both the focused person area and the out-of-focus background area.
- The background area is not monotonous, such as just a single wall, but includes a "structure" like a mirror or an obliquely running pillar.
· Includes both high frequency (hat decoration and hair) regions and low frequency regions (arms and background).