Hi, as written in previous posts, my sister is looking for a cheap device which could replace expensive commercially available digital magnifiers for visually impaired. Finally she was (together with brother and grandpa) able to construct a prototype of a stand magnifier – DIY stand similar to that used on microscopes, with coarse and fine vertical camera position setting. Using normal cheap Genius webcam, this device can magnify standard book text so that one row is as high as one half of the screen height.
The software used to display the webcam video is Cheese in Vinux distro. However it still does not have appropriate color filters like high contrast B/W and W/B (inverse), high contrast blue on yellow/ yellow on blue. It also does not have the guide line – horizontal bright color (red) thick line in the center of the screen, which makes it easier for user to focus eyes on the text line. The guys here told us, that this should be not difficult to achieve, however we were not able to get it working (probably needs someone with at least basic programming skills). If someone is interested in this device (could be very useful also for elderly people), here is an article containing also many photos and a video how it works: http://petrahele.webnode.cz/news/assistive/ regards Helios _______________________________________________ gnome-accessibility-list mailing list gnome-accessibility-list@gnome.org http://mail.gnome.org/mailman/listinfo/gnome-accessibility-list
