JPEG: security and privacy of your photos
The use of images in the .jpg extension is increasing exponentially every day. It is not a luxury to see how we can protect ourselves and our images.
Yesterday we saw that technology is changing rapidly, and that this also applies to your photos. JPEG is celebrating 26 years and in that period the composition of the .jpg extension several times already changed significantly. Also in the near future is a lot of lift for your images. But what about those with security and privacy?
Taking pictures is becoming easier thanks to our smartphones. We share them increasingly with friends and family, without us thereby think that we pretty much give up personal information. we share our pictures on Facebook, they will be analyzed by unscrupulous complex algorithms to tailor advertising to us.
Once you swing a photo on the web, you can it also not be surprised if you see it used one week later on different websites for various purposes. Infringement of copyright is called so. Often, however, it is so difficult to trace the original source, which many people have quickly lose courage.
Of course, there are now already ways to indicate this with a watermark in the metadata is clogged, but this is for many users with a mysterious process that seems to be difficult and tiring. The metadata also contains a printout of location, which also are used by social media like Facebook and Snapchat to attract advertisers.
As far as necessary,
Peter Schelkens, professor at the VUB and employee iMinds indicates that large companies do not attract much here. JPEG evangelist professor Touradj Ebrahimi enter him in with "great players think they are big enough to have to take this into account." Google was ever have thought, but his file was nowhere really entrance. "Who knows even that Google has ever tried it?" Asked Ebrahimi, where the conference room was silent.
"Social media are not necessarily far and they do not do it on purpose, they go as far as is necessary for them," says Schelkens. Therefore, the protection of consumers should be dealt with at a different level.iMinds works with several spin-offs from universities around these issues. Currently they are working on the future of JPEG, they want to say tighten the security and privacy of users in the technology itself. "In this way we try to influence policy and decision makers," said Schelkens.
It is in the segments
A possible solution is contained in the metadata. According Schelkens there is a need for a standard that footage linking inextricably with the metadata, which could become a reality in a new standard of JPEG. Moreover, it would not be so difficult to also create a legacy-friendly solution here. This would mean that the new standard would be compatible with the older version, without compromising privacy and security.
Indeed, there are some so-called appmarker segments available in the current JPEG standard. Currently though some segments are used to succeed in your location and to register the type of camera that took the picture is taken. This would be more than enough room to implement further measures. Not every kind of new information could be detected by this older decoders, but it would be possible to take pictures after repeated sharing via social media continues to detect.
As with intoPIX has Schelkens however, no guarantee that the idea of his team will be fully accepted or implemented in any new standard. However, in the past, we know that iMinds a valuable partner for JPEG. It is also far from unlikely that the safety of your photos and privacy in the future is assured thanks to a Belgian contribution.
Photo format JPEG Microsoft heir
The group behind the ubiquitous JPEG format HD Photo is Microsoft's take a closer look. These Joint Photographic Expert Group will standardize the format as a new generation of JPEG. The new format would bear the name "JPEG XR" and supported eventually by digital cameras. Provisional only Windows Vista and Adobe software lusts Microsoft format.
The vote on the new format takes place in October. Then Microsoft expects that will elapse before the JPEG XR standard is a fact for another year. The software giant promises that simultaneously with the adoption of HD Photo as a new JPEG standard all relevant patents can be used without licensing fees.
By putting Microsoft will probably eliminate the resistance HD Photo. That the company did once before, when the original name "Windows Media Photo 'was changed in HD Photo. The name change was seen as an attempt to make the format more popular with potential partners who do not want to promote the Windows name.
Technically, according to Microsoft's reason enough to switch from JPEG to HD Photo. The format allows both loss-making aslossless compression, color depths up to 128 bits can handle (at 24 bits for JPEG) and has a high dynamic range variant (HDR).A plus is that HD Photo allows you to show a part of an image without having to extract the full image.
Some of these features gives HD Photo ahead of the other heir to JPEG, JPEG 2000. This standard has been around for a while, but hardly found supporters in digital camera manufacturers.