Jawad: Created page with "NOTOC Removes fixed point camera noise from the image using a more robust method than Function:fpn. In addition to black image, the function also takes a white image and gain value to remove noise from the input image using the internal formula: ''dst[i] = Saturate(gain * (src[i]- black[i])/(white[i] - black[i]),0,maxValue)''; ====Function==== {| |style="font-size:100%;"| CuviStatus FPNCorrection(const CuviImage& src,..."

2022-11-07T07:08:01Z

Created page with "__NOTOC__ Removes fixed point camera noise from the image using a more robust method than Function:fpn. In addition to black image, the function also takes a white image and gain value to remove noise from the input image using the internal formula: ''dst[i] = Saturate(gain * (src[i]- black[i])/(white[i] - black[i]),0,maxValue)''; ====Function==== {| |style="font-size:100%;"| <syntaxhighlight lang="cpp"> CuviStatus FPNCorrection(const CuviImage& src,..."

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__NOTOC__
Removes fixed point camera noise from the image using a more robust method than [[Function:fpn]]. In addition to black image, the function also takes a white image and gain value to remove noise from the input image using the internal formula: ''dst[i] = Saturate(gain * (src[i]- black[i])/(white[i] - black[i]),0,maxValue)'';
====Function====
{|
|style="font-size:100%;"|
<syntaxhighlight lang="cpp">
CuviStatus FPNCorrection(const CuviImage& src,
CuviImage& dst,
const CuviImage& white,
const CuviImage& black,
Cuvi32f gain,
const CuviStream& stream)
</syntaxhighlight>
|}

====Parameters====
{|
|style="font-size:75%;"|
{|class="wikitable"
|-
! Name
! Type
! Description
|-
| src
| CuviImage&
| Source Image with noise
|-
| dst
| CuviImage&
| Resultant Image with no noise
|-
| white
| CuviImage&
| White image from camera
|-
| black
| CuviImage&
| Black image from camera with closed shutter
|-
| gain
| Cuvi32f
| Gain value for white correction
|-
| stream
| CuviStream&
| GPU stream ID for execution
|}
|}

===Image Type Support===
{|
|style="font-size:75%;"|
{| class="wikitable"
|-
! output
! input
! blackImage
|-
| 8uC1
| 8uC1
| 8uC1
|-
| 16uC1
| 16uC1
| 16uC1
|-
| 8uC3
| 8uC3
| 8uC3
|-
| 16uC3
| 16uC3
| 16uC3
|}
|}

====Example====
{|
|style="font-size:100%;"|
<syntaxhighlight lang="cpp">

CuviImage src= cuvi::io::loadImage(path);
CuviImage black= cuvi::io::loadImage(path);
CuviImage white= cuvi::io::loadImage(path);
CuviImage src;
Cuvi32f gain = 1.15f;

//fpn
cuvi::colorOperations::FPNCorrection(const CuviImage& src,
CuviImage& dst,
const CuviImage& white,
const CuviImage& black,
Cuvi32f gain)

</syntaxhighlight>
|}

Function:FPNCorrection - Revision history