exiftags parses a JPEG file looking for Exif (Exchangeable Image File) data, formatting, and printing image properties. Digital cameras typically add Exif data to the image files they produce containing information about the camera and digitized image. exiftags includes support for some camera manufacturer-specific properties.
Kooka, part of the kdegraphics package, is a raster image scan program which supports OCR. It is based on the scanner access library SANE. It supports scanning in different modes and resolutions, preview, scan area selection, and an image save assistant which features a gallery organised in a treeview with a comfortable image viewer and thumbnail support. OCR is supported through GOCR, an open source project. Kooka uses the libkscan, which offers scanner support to all KDE applications.
Camsource is a modularized and multithreaded daemon for grabbing image frames from a video4linux device. It uses a simple yet powerful plugin system, which allows it to use the same grabbed images for multiple purposes at the same time. It features image filter plugins, which can be daisychained in the XML config file to modify the image before passing them to other plugins. Included plugins provide compatibility with camserv (multipart jpeg streams) and webcam_server, a local snapshot file writing module, and an FTP upload module, as well as basic image filtering (resizing, flipping, and rotating).
iCam2 is a video4linux/imlib2 based application for handling a webcam. It grabs a frame every few seconds from a V4L video source, timestamps it with a custom string and TrueType fonts, and writes it to disk. It has an X11 interface for previewing video, filtering, and more. The console-only mode works quite stably, but the X11 interface has some severe problems. It also features limited built-in filtering and auto-brightness adjustment.
ZoneMinder is a suite of applications intended for use in video camera security applications, including theft prevention and child or family member monitoring. It supports capture, analysis, recording, and monitoring of video data coming from one or more video or network cameras attached to a Linux system. It also features a user-friendly Web interface which allows viewing, archival, review, and deletion of images and movies captured by the cameras. The image analysis system is highly configurable, permitting retention of specific events, while eliminating false positives. ZoneMinder supports both directly connected and network cameras and is built around the definition of a set of individual 'zones' of varying sensitivity and functionality for each camera. This allows the elimination of regions which should be ignored or the definition of areas which will alarm if various thresholds are exceeded in conjunction with other zones. All management, control, and other functions are supported through the Web interface.