X Window System Colormap Editor
Senior Project: 1989-1990
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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