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Graphics and 3-D Visualization, MATLAB Version 7.8 (R2009a)

New features and changes introduced in this version are:

Functions Previously Only Available in the Image Processing Toolbox Now Available in MATLAB

The following functions have been added to MATLAB from the Image Processing Toolbox™:

• rgb2ind: Convert RGB image to indexed image.

• dither: Convert image using dithering.

• cmunique: Eliminate unneeded colors in colormap of indexed image.

• cmpermute: Rearrange colors in colormap.

• imapprox: Approximate indexed image by one with fewer colors.

Compatibility Considerations

• The dither and imapprox functions no longer display their output as an image via a call to imshow when called with no output arguments. Instead, the first output argument appears in the Command Window if no semicolon ends the line.

• Function rgb2ind errors when called with syntax rgb2ind(rgb).

• Function imapprox errors when called with syntax imapprox(x,map).

Programming Fundamentals, MATLAB Version 7.8 (R2009a)

Creating Graphical User Interfaces (GUIs), MATLAB Version 7.8 (R2009a)

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