Wavelet Toolbox Previous page   Next Page

Controlling the Colormap

The Colormap selection box, located at the lower right of the window, allows you to adjust the colormap that is used to plot images or coefficients (wavelet or wavelet packet).

This is more than an aesthetic adjustment because you are likely to see different features depending on your colormap selection.

Consider these images of the Mandelbrot set generated in the Wavelet Packet 2-D tool, shown here using the bone and 1-bone colormaps.

Controlling the Number of Colors

The Nb. Colors slider, located at the bottom right of the window, allows you to adjust how many colors the tool uses to plot images or coefficients (wavelet or wavelet packet). You can also use the edit control to adjust the number of colors. Adjusting the number of colors can highlight different features of the plot.

Consider the coefficients plot of the Koch curve generated in the Continuous Wavelet tool, shown here using 129 colors.

and here using 68 colors.

Controlling the Coloration Mode

In the Continuous Wavelet tools, the coloration of coefficients can be done in several different ways.

In the Wavelet 1-D tool, you access coefficients coloration with the More Display Options button, and then select the desired Coloration Mode option.

The More Display Options button appears only when the Display mode is one of the following -- Show and Scroll, Show and Scroll (Stem Cfs), Superimposed, and Separate). In this case, scales are replaced by levels in all options of the Coloration Mode menu.


Previous page  Using the Mouse Using Menus Next page

© 1994-2005 The MathWorks, Inc.