raspistill

raspistill is a command-line utility for the Raspberry Pi camera module. It allows users to capture still images using the camera. The command is typically accessed through the terminal on a Raspberry Pi running Raspberry Pi OS or a similar Linux-based operating system.

The basic usage of raspistill involves simply typing the command in the terminal. However, it supports a wide range of optional parameters to customize image capture. These parameters allow users to control aspects such as image resolution, image quality, exposure settings, white balance, and even apply various image effects. For instance, users can specify the output filename, set a timer for delayed capture, or take a burst of photos.

Commonly used options include `-o` for specifying the output file name, `-w` and `-h` for setting the width and height of the image, and `-t` for setting a timeout in milliseconds before capturing the image. Advanced users can also adjust parameters like `-ex` for exposure mode, `-awb` for auto white balance, and `-ifx` for image effects.

raspistill is a powerful tool for both hobbyists and developers who want to integrate camera functionality into their Raspberry Pi projects. It provides a straightforward way to programmatically capture images, which can then be used in various applications, from simple photography to more complex computer vision tasks. Documentation for all available options can typically be found by running `raspistill --help` in the terminal.