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Subtracts a scalar value from each pixel.
Name | Type | Description | |
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inImage | Image | Input image |
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inRoi | Region* | Range of pixels to be processed |
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inValue | Real | Value to be subtracted |
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outImage | Image | Output image |
Description
The operation decreases the brightness of the inImage by subtracting a fixed value from each of its pixels.
![\forall_{i,j} \text{\textbf{OutImage} }_{i,j} = \text{\textbf{InImage} }_{i,j} - \text{\textbf{inValue} }](../../img/filters/SubtractFromImage.png)
Whenever the resulting value exceeds the range of pixel values, it is clipped to the nearest proper value.
Examples
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The SubtractFromImage performed on the sample image with inValue = 50.0.
Hardware Acceleration
This operation is optimized for SSE2 technology for pixels of types: UINT8, SINT8, SINT16, REAL.
This operation supports automatic parallelization for multicore and multiprocessor systems.
Complexity Level
This filter is available on Basic Complexity Level.