Back to Adaptive Vision Studio website
You are here: Start » Filter Reference » Image Point Transforms » LogarithmImage
LogarithmImage
Computes a natural logarithm of each pixel.
| Name | Type | Range | Description | |
|---|---|---|---|---|
 |
inImage | Image | Input image | |
|
inRoi | Region* | Region of interest | |
|
inScale | Real* | Scaling factor (default: 255) | |
|
inOffset | Real | 1.0 -  |
Offset factor |
|
inNormalizeZero | Bool | Specifies whether the output range should be rescaled to start from 0 | |
 |
outImage | Image | Output image | |
 |
diagLutProfile | Profile | Profile depicting the resulting look-up table of the logarithm transform | |
Requirements
For input inImage only pixel formats are supported: int8, uint8, int16, uint16, int32.
Read more about pixel formats in Image documentation.
Applications
Transforms an image in such a way that a quotient on the input image becomes a difference on the output image. This can be useful for dealing with variable illumination.
Examples
Description of usage of this filter can be found in examples and tutorial: Fourier Analysis.
Hardware Acceleration
This operation supports automatic parallelization for multicore and multiprocessor systems.
Complexity Level
This filter is available on Basic Complexity Level.
