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NegateImage


Module: FoundationLite

Reverts the pixel value range (unsigned) or applies numeric negation (signed).

Name Type Description
Input value inImage Image Input image
Input value inRoi Region* Range of pixels to be processed
Output value outImage Image Output image

Description

The operation negates the pixel values of the inImage. Depending on the pixel type, the negation is defines as follows:

  • For the signed pixel types: \forall_{i,j} \text{\textbf{OutImage} }_{i,j} = -\text{\textbf{InImage} }_{i,j}
  • For the unsigned pixel types: \forall_{i,j} \text{\textbf{OutImage} }_{i,j} =  \text{\textbf{MaximalValue} } - \text{\textbf{InImage} }_{i,j} (which can be thought of as mirroring the pixel values around the center of the pixel values range)

Examples

Description of usage of this filter can be found in examples and tutorial: Image Modification Using the HMI.

The NegateImage performed on the sample image.

Hardware Acceleration

This operation is optimized for SSE2 technology for pixels of types: UINT8, SINT8, SINT16, REAL NEON: UINT8, SINT8, UINT16, SINT16, SINT32, REAL.

This operation supports automatic parallelization for multicore and multiprocessor systems.

Errors

This filter can throw an exception to report error. Read how to deal with errors in Error Handling.

List of possible exceptions:

Error type Description
DomainError Region exceeds an input image in NegateImage.

Complexity Level

This filter is available on Basic Complexity Level.