JPEG Files

JPEG is a common image format.

JPEG files are:

• binary
• Color (24 bit, that is, 8 bits each of RGB)
• 2D
• Lossy compression
• 1 image

Reference:

William Pennebaker and Joan Mitchell,
JPEG: Still Image Data Compression Standard,
International Thomson Computer Press,
London, 1993

Programs to create a JPEG file include:

• MATLAB

Programs to view a JPEG file include:

• Microsoft EXPLORER
• GIMP
• The ImageVision program imgview can display a JPEG file.
• The Macintosh program JPEGVIEW can display a JPEG file.
• The Netscape program can display a JPEG file.
• XV
• Microsoft WORD

Programs to convert a JPEG file to another format:

• GIMP
• The Netscape program can save a displayed JPEG file as a PostScript file.
• XV can save a JPEG file in BMP, FIT, GIF, PBM/PGM/PPM, RGB or TIF formats, among others.

Programs to convert a file to JPEG format:

• GIMP
• XV can read a BMP, FIT, GIF, PBM/PGM/PPM, RGB or TIF file, and save it as a JPG file.

Files you may copy (careful, BINARY files!):

• bent_fish.jpg, front, side and top views of a colorful fish model for use in a science animation;
• brain.jpg, the shadow of a head, with the image of a brain, and the optical system highlighted;
• brain_scan.jpg, an image of the activated portions of the brain during a particular activity;
• dome_back1.jpg, a mockup of how the science animation would appear in the auditorium;
• dome_neuron1.jpg;
• head_44ks.jpg;
• neuron_diagram.jpg;
• newton.jpg, which displays the convergence of points in the complex plane to one of the three roots of z^2=-1 under Newton's method;
• png_bar.jpg, a bar graph;
• stirling.jpg, which displays the convergence of points in the complex plane to one of the three roots of z^2=-1 under Stirling's method;

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