Barcode Writer in Pure Postscript implements the printing of many barcode formats entirely within PostScript, so that the process of converting the input string into the printed output is performed by the printer or print system. The project supports all major barcode formats including: EAN-13 (JAN-13), EAN-8 (JAN-8), UPC-A, UPC-E, EAN-5 & EAN-2 (EAN/UPC add-ons), ISBN (including legacy ISBN), ISMN (including legacy ISMN), ISSN, Code 128 (A, B & C), GS1-128, SSCC-18 (EAN-18, NVE), EAN-14, Code 39, Code 39 Extended, Code 93, Code 93 Extended, Code 32 (Italian Pharmacode), Pharmazentralnummer (PZN), Interleaved 2 of 5, ITF-14 (UPC SCS), GS1 DataBar (Omnidirectional, Stacked, Stacked Omnidirectional, Limited, Expanded, Expanded Stacked), Code 2 of 5 (Industrial, IATA, Matrix, Datalogic & COOP), Code 11 (USD-8), BC412, Codabar (NW-7), Pharmacode (including two-track), MSI, Plessey, Telepen, Channel Code, PosiCode, PDF417, Data Matrix (ECC200), QR Code (including Micro QR Code), and more.
ExactScan is a versatile document capture application for home offices and workgroups. It is designed from the ground up for high-speed document scanners and can easily handle hundreds of images per minute, including duplex scans. Included functionality reaches from managing, sorting, and editing singles pages to writing multi- as well as single-page PDF files including JPEG compression and TIFF, JPEG, JPEG2000, and PNG bitmap files. ExactScan allows performing state of the art image processing including automatic cropping, deskewing, dynamic thresholding for perfect black and white documents, and descreening print rasters.
The metric implemented in the Image::Density Perl Module estimates the density of data where there is data, and has a reasonable correlation with goodness as judged by humans. That is, if you let a human look at a set of images and judge quality, the density values for those images as calculated here tend to correlate well with the human judgement (densities that are too high or too low represent "bad'' images). It is intended for use on bitonal TIFF images, such as those from scanning paper documents.
UNG (UNG’s Not Gallery) is an image gallery script for control freaks, tweakers, and other power users. It browses subdirectories (uploaded manually via FTP, SCP, or another protocol) of a specified location and creates a hierarchy of categories and pictures. It automatically creates thumbnails for images that don’t have them already and has an optional comment system so people can discuss posted pictures.
Vis/Space is a client-server system for visually exploring data structures in 3D virtual space. It allows the placement of various data sources in a three-dimensional environment. Custom search terms can be entered into a query field, or can be navigated to and from an existing object. All objects like images and "text screens" can be moved around. A single click on an image shows the full-resolution version in the foreground. Whole collections of images can be moved. A click to the cube also toggles among several different possible layouts. Data sources include search engines, microblogging, Wikipedia, image/video search, and 4chan.