Image Processing Toolbox Release Notes

Optimized Image Arithmetic Functions

The image arithmetic functions have been optimized in two ways:

• Portable code improvements have been made to speed up the arithmetic functions on all platforms.
• Pentium- and MMX-specific code improvements have been made to provide additional speed improvements on the Windows and Linux platforms. The changes are based on the Intel Performance Primitives Library.

Functions affected by these improvements include the imabsdiff, imadd, imcomplement, imdivide, imlincomb, and the immultiply functions. To determine if the Intel Performance Primitives Library is being used, call the ippl function.

Unsigned Integer Lookup Tables

Performance Improvements

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