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Image File Types Decoded — Cool Infographics
JPEG、PNG-8、GIF、PNG-24、SVGの特徴を図解
images  comparison  visualization  jpeg  png  gif  svg 
4 weeks ago by lilili
Finding Lena Forsen, the Patron Saint of JPEGs | WIRED
EVERY MORNING, LENA Forsen wakes up beneath a brass-trimmed wooden mantel clock dedicated to “The First Lady of the Internet.”
compression  graphics  history  jpeg 
4 weeks ago by jchris
JPEGmini - Photo optimization for creatives
Image optimization pictures camera Lightroom Photoshop jpeg
photography  photographs  image  jpeg  photoshop  photos  lightroom  photo 
5 weeks ago by fclough
How the JPEG Changed Everything | Frieze
‘Every two minutes, people upload more images to the internet than existed in total just 150 years ago’
compression  digital  images  internet  jpeg  jpegs  photos  stream 
6 weeks ago by therourke
Finding Lena Forsen, the Patron Saint of JPEGs | WIRED
EVERY MORNING, LENA Forsen wakes up beneath a brass-trimmed wooden mantel clock dedicated to “The First Lady of the Internet.”

IT WAS PRESENTED to her more than two decades ago by the Society for Imaging Science and Technology, in recognition of the pivotal—and altogether unexpected—role she played in shaping the digital world as we know it.

Among some computer engineers, Lena is a mythic figure, a mononym on par with Woz or Zuck. Whether or not you know her face, you’ve used the technology it helped create; practically every photo you’ve ever taken, every website you’ve ever visited, every meme you’ve ever shared owes some small debt to Lena. Yet today, as a 67-year-old retiree living in her native Sweden, she remains a little mystified by her own fame. “I’m just surprised that it never ends,” she told me recently.
photo  sampleimage  MediaArchaeology  image  compression  jpeg 
6 weeks ago by hockendougal
Finding Lena Forsen, the Patron Saint of JPEGs | WIRED
In 1972, a photo of a Swedish Playboy model was used to engineer the digital image format that would become the JPEG. The model herself was mostly a mystery—until now.
history  jpeg  compression  fascinating 
6 weeks ago by po
Exiv2 - Image metadata library and tools
Exiv2 is a Cross-platform C++ library and a command line utility to manage image metadata. It provides fast and easy read and write access to the Exif, IPTC and XMP metadata and the ICC Profile embedded within digital images in various formats. Exiv2 is available as free software and is used in many projects including KDE and Gnome Desktops as well as many applications including GIMP, darktable, shotwell, GwenView and Luminance HDR.
photography  jpeg  c++  software  opensource 
9 weeks ago by ssorc
darkjpeg
Free, secure and fast open source JPEG steganography web service written in JavaScript under the MIT License, supporting SHA3 key generation, AES256 encoding, random image containters, RarJPEGs, deniable encryption and non-tracking anonymous client-side processing
jpeg  steganography  security  opensource  floss  online  service 
10 weeks ago by gilberto5757
Fourier Transforms
I love interactive explainers like this one on Fourier transforms (wish we could do the same for money laundering):
fourier  _eimi  jpeg 
10 weeks ago by raphman

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