AI Could Build the Next JPEG Image Codec

· Andrew Orr · Link

The Joint Photographic Experts Group (JPEG) is exploring methods to use machine learning to create the next JPEG image codec.

In a recent meeting held in Sydney, the group released a call for evidence to explore AI-based methods to find a new image compression codec. The program, aptly named JPEG AI, was launched last year; with a special group to study neural-network-based image codecs.

Twitter Will Stop Transcoding JPEG Images Which Lowered Quality

· Andrew Orr · Link

Twitter engineer Nolan O’Brien said that Twitter will preserve JPEGs as they are uploaded. This means that uploaded images will retain their original quality.

It’s a small change that has the potential to make a big difference to the way photographers view and use the platform. Nolan’s thread has inevitably kick-started a conversation about plans for other image formats and user-requested changes, so Twitter could make itself even more photo-friendly soon.

Another interesting note is that Twitter automatically strips EXIF data from photos, which I didn’t know. This is nice because this metadata can contain private information, such as where the photo was shot.

This Playboy Model's Image Was Used to Create the JPEG Format

· Andrew Orr · Link

In 1973 a photo of a Swedish Playboy model was used to create the JPEG image format. Linda Kinstler tracked down Lena Forsen.

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.

A fascinating story that I had never heard of before.

How to Batch Convert Images with Preview

· Melissa Holt · Quick Tip

Got a bunch of JPEGs you need to convert to PNGs? Preview can do them all in one batch! In today’s Quick Tip, we’ll tell you how to change your preferences to make this possible.