controlbad.blogg.se - april 2023

The IPTC section of an image usually contains information about the image, such as title, description, keywords, photographer’s information, copyright restrictions, and more.

IPTC (International Press Telecommunications Council) – A format originally adopted by old media news agencies to streamline information, but has been implemented by new media to do much the same thing.

This specification also helps cameras use formats that can be exchanged between devices for example, ensuring an iPhone photo appears correctly on a Samsung device. cameras and smartphones), such as data and time, and camera settings (make and model, image orientation, aperture, shutter speed, focal length, metering mode, ISO speed etc).

EXIF (Exchangeable image file format) – Information generated automatically by the device that captured the image (i.e.

In addition to visual data, image files actually contain several different formats for metadata, which in turn store different types of information: Image metadata, specifically, is information embedded into an image that includes details about the image itself as well as information about how it was created. Metadata is generally described as data about data. In this post, we’ll take a look at what image metadata is, its performance impacts, some security concerns you might not be aware of, along with details on how to scrub metadata from your images. But what you might not be doing is trimming excess metadata. When it comes to website optimization, images are often considered low hanging fruit since they’re easy to compress.

This means 8% of what we download online is useless, unnecessary metadata. But consider this: On average, image metadata makes up 16% of a typical JPEG file on the web, according to website optimization service Dexecure. Images account for a whopping 50% of the total file size of a web page.