flscan (Fast Light Scan) is a new frontend for the SANE libraries and dlls. It can rotate images by 90° both clockwise and counter clockwise, flip images both vertically and horizontally, correct the horizontal aspect of the image, save aquired images in JPEG or in PNG format, let you view images even at full size after they've been acquired, and potentially supports all the SANE backends.
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.
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.