Developer Reference

  • 2020
  • 10/21/2020
  • Public Content


The threshold functions change pixel values depending on whether they are less or greater than the specified
The type of comparison operation used to threshold pixel values is specified by the
parameter; this operation can be either “greater than” or “less than” (see Structures and Enumerators for more information). For some thresholding functions the type of comparison operation is fixed.
If an input pixel value satisfies the compare condition, the corresponding output pixel is set to the fixed value that is specific for a given threshold function flavor. Otherwise, it is either not changed, or set to another fixed value, which is defined in a particular function description.
For images with multi-channel data, the compare conditions should be set separately for each channel.

Product and Performance Information


Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804