ImageMagick is a collection of X11 image processing and display utilities. It is available on export.lcs.mit.edu as contrib/ImageMagick.tar.Z. cristy@dupont.com --- Display Display is a machine architecture independent image processing and display program. It can display an image on any workstation display running an X server. Display first determines the hardware capabilities of the workstation. If the number of unique colors in the image is less than or equal to the number the workstation can support, the image is displayed in an X window. Otherwise the number of colors in the image is first reduced to match the color resolution of the workstation before it is displayed. This means that a continuous-tone 24 bits/pixel image can display on a 8 bit pseudo-color device or monochrome device. In most instances the reduced color image closely resembles the original. Alternatively, a monochrome or pseudo-color image can display on a continuous-tone 24 bits/pixels device. Import Import reads an image from any visible window on an X server and outputs it as an image file. You can capture a single window, the entire screen, or any rectangular portion of the screen. You can use display (see display(1)) utility for redisplay, printing, editing, formatting, archiving, image processing, etc. of the captured image. The target window can be specified by id, name, or may be selected by clicking the mouse in the desired window. If you press a button and then drag, a rectangle will form which expands and contracts as the mouse moves. To save the portion of the screen defined by the rectangle, just release the button. The keyboard bell is rung once at the beginning of the screen capture and twice when it completes. Animate Animate displays a sequence of images on any workstation display running an X server. Animate first determines the hardware capabilities of the workstation. If the number of unique colors in an image is less than or equal to the number the workstation can support, the image is displayed in an X window. Otherwise the number of colors in the image is first reduced to match the color resolution of the workstation before it is displayed. This means that a continuous-tone 24 bits/pixel image can display on a 8 bit pseudo-color device or monochrome device. In most instances the reduced color image closely resembles the original. Alternatively, a monochrome or pseudo-color image sequence can display on a continuous-tone 24 bits/pixels device. Montage Montage creates a composite image by combining several separate images. The images are tiled on the composite image with the name of the image optionally appearing just below the individual tile. Mogrify Mogrify transforms an image or a sequence of images. These transforms include image scaling, image rotation, color reduction, and others. The transmogrified image overwrites the original image. Convert Convert converts an input file using one image format to an output file with a differing image format. By default, the image format is determined by it's magic number. To specify a particular image format, precede the filename with an image format name and a colon (i.e. ps:image) or specify the image type as the filename suffix (i.e. image.ps). Specify file as - for standard input or output. If file has the extension .Z, the file is decoded with uncompress. Convert recognizes the following image formats: Tag Description ---------------------------------------------------- ALPHA Raw alpha bytes AVS AVS X image file BMP Microsoft Windows bitmap image file CMYK Raw cyan, magenta, yellow, and black bytes EPS Adobe Encapsulated Postscript FAX Group 3 GIF Compuserve Graphics image file GRAY Raw gray bytes JPEG MIFF Machine Independant file format MTV PICT Apple Macintosh QuickDraw/PICT file PNM Portable bitmap PS Adobe PostScript file PS Adobe PostScript Level II file RGB Raw red, green, and blue bytes RLE Utah Raster Toolkit SUN SUN raster TGA Truevision Targa image file TEXT raw text file; read only TIFF Tagged Image File Format VICAR VIFF Khoros Visualization image file. X select image from X server screen; read only XC constant image of X server background color XBM X11 bitmap XWD X11 window dump YUV Raw Y, U, and V bytes Combine Combine combines images to create new images. Segment Segment segments an image by analyzing the histograms of the color components and identifying units that are homogeneous with the fuzzy c-means technique. The scale-space filter analyzes the histograms of the three color components of the image and identifies a set of classes. The extents of each class is used to coarsely segment the image with thresholding. The color associated with each class is determined by the mean color of all pixels within the extents of a particular class. Finally, any unclassified pixels are assigned to the closest class with the fuzzy c- means technique. XTP Xtp is a utility for retrieving, listing, or printing files from a remote network site, or sending files to a remote network site. Xtp performs most of the same functions as the ftp program, but does not require any interactive commands. You simply specify the file transfer task on the command line and xtp performs the task automatically.