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Senior Project - XCOED


X Window System Colormap Editor

Senior Project: 1989-1990
Jeffrey Boote, Daniel Wells and Dee Wu
Scientific Computing Division
Boulder, CO

Images, such as those of weather phenomena or extraterrestrial objects, are among the many types of data used by scientists. The images may be created not only by optical cameras, but by other means, such as infrared cameras. These images may be both grayscale and color. One method of gaining better understanding of the data represented by these images is to edit a color map associated with the image. For example, an infrared image of a hurricane might appear as a grayscale bitmap with varying intensities of gray representing varying temperatures. By modifying the color map for a particular pixel (e.g. changing that pixel to bright red), all areas with the same temperature are made immediately quite visible. This project provided an X Windows based color image editor, implemented in C, allowing scientists to modify the color map of an image in a variety of ways, while viewing the resultant image on the screen. This modification included the editing of individual pixels and the application of sin and linear functions to ranges of pixel values using both the RGB and HLS color models.

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May 5, 2012 (14:07)