The practice of messages in the data underlying an image is called steganography. Steganographic encryption works by adding a small pattern as a layer over an image. Sometimes the pattern is invisible ...

Researchers developed a new optical system that uses holograms to encode information, creating a level of encryption that traditional methods cannot penetrate. As the demand for digital security grows ...

Encoding images in photon correlations Simplified experimental setup (a). A conventional intensity image (b) reveals no information about the object, while a correlation image acquired using an ...

The Shortcuts Corner is a regular section of our MacStories Weekly newsletter, exclusive to Club MacStories members, where I share advanced shortcuts and respond to readers’ requests for automation.

[Click on image for larger view.] Figure 1: Programmatically Encoding Categorical Data The demo is a Python language program but programmatic data encoding can be implemented using any language. The ...