Attenuation correction algorithm
#include "dip_microscopy.h"
dip_Error dip_AttenuationCorrection ( in, out, fAttenuation, bAttenuation, background, threshold, NA, refIndex, ratio, method )
binary, integer, float
This function implements an attenuation correction using three different recursive attenuation correction algorithms. The RAC-DET algorithm is the most accurate one, since it takes both forward and backward attenuation into account. It is however considerably slower that the RAC-LT2 and RAC-LT1 algorithms which take only forward attenuation into account. These last two algorithms assume a constant attenuation (background) for pixels with an intensity lower than the threshold.
| Data type | Name | Description |
| dip_Image | in | Input image |
| dip_Image | out | Output image |
| dip_float | fAttenuation | Forward attenuation factor |
| dip_float | bAttenuation | Backward attenuation factor |
| dip_float | background | Background attenuation factor |
| dip_float | threshold | Background threshold |
| dip_float | NA | Numerical aperture |
| dip_float | refIndex | Refractive index |
| dip_float | ratio | Z/X sampling ratio |
| dipf_AttenuationCorrection | method | Correction method |
The dipf_AttenuationCorrection enumaration consists of the following flags:
| Name | Description |
| DIP_ATTENUATION_RAC_LT2 | Recursive Attenuation Correction algorithm using two Light Cone convolutions |
| DIP_ATTENUATION_RAC_LT1 | Recursive Attenuation Correction algorithm using one Light Cone convolution |
| DIP_ATTENUATION_RAC_DET | Recursive Attenuation Correction algorithm using Directional Extinction Tracking |
K.C. Strasters, H.T.M. van der Voort, J.M. Geusebroek, and A.W.M. Smeulders, Fast attenuation correction in fluorescence confocal imaging: a recursive approach, BioImaging, vol. 2, no. 2, 1994, 78-92.
Karel Strasters, adapted to DIPlib by Geert van Kempen.