Engauge Digitizer is digitizing software that converts an image showing a graph or map into numbers. The image file can come from a scanner, digital camera, or screenshot. The numbers can be read on the screen, and written or copied to a spreadsheet. Highlights for beginners include an intuitive interface and extensive context-sensitive documentation. Highlights for experts include compensation for image distortion, cartesian and polar coordinates, linear and logarithmic coordinates, automatic scanning, graphical previews, and browser help.
Morena is a Java framework that allows a Java program to acquire an image from a scanner or camera. To communicate with the hardware, it uses standard interfaces: Twain for MS Windows and Mac OS X and Sane for a number of Unix platforms (AIX, BeOS, Darwin, FreeBSD, HP-UX, Linux, NetBSD, OpenBSD, OS2, Solaris, Unixware).
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.
Signsrch is a tool that searches for signatures inside raw files and executables. It can recognize a large number of compression, multimedia, and encryption algorithms and many other things like known strings and portions of anti-debugging code. Definitions can be manually added, since they are based on an ease-to-modify text signature file that is read at runtime. It also supports the scanning of processes, conversion of executable memory offsets, 8, 16, 32 and 64 bits, float and double, plus automatic CRC table creation and C style strings.
Multi Threaded TCP Port Scanner allows you to scan 65535 TCP ports on an IP address. You can specify how many threads to run and the timeout. Furthermore, it will tell you the MAC address of the target and the services that are running. You can scan IP addresses on your network and find out which open ports you have.