Is there a node or combination of nodes that can take an average colour out of a single image?2019 Community Moderator Election Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern) 2019 Moderator Election Q&A - QuestionnaireHow to make textures in Blender without any flat work with a painting program? (3D painting)How to make use of a cubemap in Blender CyclesHow can I create an image of my UV unwrapSet image texture node label based upon characters in filename/filepath stringHow can I reuse texture within the same model?Movie set as image texture not playing in cycles?How to have layer textures on a mesh in Cycles RenderHow Does Eevee Handle Shader Nodes?Linking Mist pass to OutputFile Node Image cannot be performed using Python API?Access color channels independently of alpha with Cycles?
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Is there a node or combination of nodes that can take an average colour out of a single image?
2019 Community Moderator Election
Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)
2019 Moderator Election Q&A - QuestionnaireHow to make textures in Blender without any flat work with a painting program? (3D painting)How to make use of a cubemap in Blender CyclesHow can I create an image of my UV unwrapSet image texture node label based upon characters in filename/filepath stringHow can I reuse texture within the same model?Movie set as image texture not playing in cycles?How to have layer textures on a mesh in Cycles RenderHow Does Eevee Handle Shader Nodes?Linking Mist pass to OutputFile Node Image cannot be performed using Python API?Access color channels independently of alpha with Cycles?
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$begingroup$
This is the opposite of what people usually ask for, where when there is no UV Map for an image texture, an average of the image is applied to the model.
However in this case I am asking if there is a way to use an image to generate a single colour that can then be passed through other nodes.
For example in this Screenshot, the image texture would apply as an image texture to the top half, whereas the same image would produce a single colour, pass through a HSB node to be darkened to produce the bottom colour. Currently I am manually selecting the colour.
texturing nodes color
edited 16 hours ago
Ray Mairlot
22.6k56799
asked 16 hours ago
YoshiharaYoshihara
415
$endgroup$
add a comment |
$begingroup$
This is the opposite of what people usually ask for, where when there is no UV Map for an image texture, an average of the image is applied to the model.
However in this case I am asking if there is a way to use an image to generate a single colour that can then be passed through other nodes.
For example in this Screenshot, the image texture would apply as an image texture to the top half, whereas the same image would produce a single colour, pass through a HSB node to be darkened to produce the bottom colour. Currently I am manually selecting the colour.
texturing nodes color
edited 16 hours ago
Ray Mairlot
22.6k56799
asked 16 hours ago
YoshiharaYoshihara
415
$endgroup$
$begingroup$
Is it Cycles you are working with? Blender version 2.79b?
$endgroup$
– Martin Z
15 hours ago
add a comment |
$begingroup$
This is the opposite of what people usually ask for, where when there is no UV Map for an image texture, an average of the image is applied to the model.
However in this case I am asking if there is a way to use an image to generate a single colour that can then be passed through other nodes.
For example in this Screenshot, the image texture would apply as an image texture to the top half, whereas the same image would produce a single colour, pass through a HSB node to be darkened to produce the bottom colour. Currently I am manually selecting the colour.
texturing nodes color
edited 16 hours ago
Ray Mairlot
22.6k56799
asked 16 hours ago
YoshiharaYoshihara
415
$endgroup$
This is the opposite of what people usually ask for, where when there is no UV Map for an image texture, an average of the image is applied to the model.
However in this case I am asking if there is a way to use an image to generate a single colour that can then be passed through other nodes.
For example in this Screenshot, the image texture would apply as an image texture to the top half, whereas the same image would produce a single colour, pass through a HSB node to be darkened to produce the bottom colour. Currently I am manually selecting the colour.
texturing nodes color
texturing nodes color
edited 16 hours ago
Ray Mairlot
22.6k56799
asked 16 hours ago
YoshiharaYoshihara
415
edited 16 hours ago
Ray Mairlot
22.6k56799
asked 16 hours ago
YoshiharaYoshihara
415
edited 16 hours ago
Ray Mairlot
22.6k56799
edited 16 hours ago
Ray Mairlot
22.6k56799
edited 16 hours ago
Ray Mairlot
22.6k56799
22.6k56799
asked 16 hours ago
YoshiharaYoshihara
415
asked 16 hours ago
YoshiharaYoshihara
415
asked 16 hours ago
YoshiharaYoshihara
415
415
$begingroup$
Is it Cycles you are working with? Blender version 2.79b?
$endgroup$
– Martin Z
15 hours ago
add a comment |
$begingroup$
Is it Cycles you are working with? Blender version 2.79b?
$endgroup$
– Martin Z
15 hours ago
$begingroup$
Is it Cycles you are working with? Blender version 2.79b?
$endgroup$
– Martin Z
15 hours ago
$begingroup$
Is it Cycles you are working with? Blender version 2.79b?
$endgroup$
– Martin Z
15 hours ago
add a comment |
1 Answer
1
active
oldest
votes
$begingroup$
If you shrink the image to a size smaller than a pixel of the render result it will render as average, so you could just change the mapping of the coordinates:
You can use vector mapping node as well.
That might not be the most efficient way to calculate the average, but it's easy to achieve and it works.
answered 15 hours ago
Martin ZMartin Z
6,2671628
$endgroup$
$begingroup$
Is this calculating an average or cropping to a corner? eg will a b&w chessboard image fade to gray?
$endgroup$
– batFINGER
1 hour ago
$begingroup$
It will eventually fade to grey. imgur.com/PyeKlty In case of black and white it is going to be a linear grey so to human eye it is going to be light grey, grey to us is around 21.4% or 18% depending on who you ask. The problem here is that it relies on sampling so it may need a lot of samples for the noise to clear up.
$endgroup$
– Martin Z
10 mins ago
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
If you shrink the image to a size smaller than a pixel of the render result it will render as average, so you could just change the mapping of the coordinates:
You can use vector mapping node as well.
That might not be the most efficient way to calculate the average, but it's easy to achieve and it works.
answered 15 hours ago
Martin ZMartin Z
6,2671628
$endgroup$
$begingroup$
Is this calculating an average or cropping to a corner? eg will a b&w chessboard image fade to gray?
$endgroup$
– batFINGER
1 hour ago
$begingroup$
It will eventually fade to grey. imgur.com/PyeKlty In case of black and white it is going to be a linear grey so to human eye it is going to be light grey, grey to us is around 21.4% or 18% depending on who you ask. The problem here is that it relies on sampling so it may need a lot of samples for the noise to clear up.
$endgroup$
– Martin Z
10 mins ago
add a comment |
$begingroup$
If you shrink the image to a size smaller than a pixel of the render result it will render as average, so you could just change the mapping of the coordinates:
You can use vector mapping node as well.
That might not be the most efficient way to calculate the average, but it's easy to achieve and it works.
answered 15 hours ago
Martin ZMartin Z
6,2671628
$endgroup$
$begingroup$
Is this calculating an average or cropping to a corner? eg will a b&w chessboard image fade to gray?
$endgroup$
– batFINGER
1 hour ago
$begingroup$
It will eventually fade to grey. imgur.com/PyeKlty In case of black and white it is going to be a linear grey so to human eye it is going to be light grey, grey to us is around 21.4% or 18% depending on who you ask. The problem here is that it relies on sampling so it may need a lot of samples for the noise to clear up.
$endgroup$
– Martin Z
10 mins ago
add a comment |
$begingroup$
If you shrink the image to a size smaller than a pixel of the render result it will render as average, so you could just change the mapping of the coordinates:
You can use vector mapping node as well.
That might not be the most efficient way to calculate the average, but it's easy to achieve and it works.
answered 15 hours ago
Martin ZMartin Z
6,2671628
$endgroup$
If you shrink the image to a size smaller than a pixel of the render result it will render as average, so you could just change the mapping of the coordinates:
You can use vector mapping node as well.
That might not be the most efficient way to calculate the average, but it's easy to achieve and it works.
answered 15 hours ago
Martin ZMartin Z
6,2671628
answered 15 hours ago
Martin ZMartin Z
6,2671628
answered 15 hours ago
Martin ZMartin Z
6,2671628
answered 15 hours ago
Martin ZMartin Z
6,2671628
6,2671628
$begingroup$
Is this calculating an average or cropping to a corner? eg will a b&w chessboard image fade to gray?
$endgroup$
– batFINGER
1 hour ago
$begingroup$
It will eventually fade to grey. imgur.com/PyeKlty In case of black and white it is going to be a linear grey so to human eye it is going to be light grey, grey to us is around 21.4% or 18% depending on who you ask. The problem here is that it relies on sampling so it may need a lot of samples for the noise to clear up.
$endgroup$
– Martin Z
10 mins ago
add a comment |
$begingroup$
Is this calculating an average or cropping to a corner? eg will a b&w chessboard image fade to gray?
$endgroup$
– batFINGER
1 hour ago
$begingroup$
It will eventually fade to grey. imgur.com/PyeKlty In case of black and white it is going to be a linear grey so to human eye it is going to be light grey, grey to us is around 21.4% or 18% depending on who you ask. The problem here is that it relies on sampling so it may need a lot of samples for the noise to clear up.
$endgroup$
– Martin Z
10 mins ago
$begingroup$
Is this calculating an average or cropping to a corner? eg will a b&w chessboard image fade to gray?
$endgroup$
– batFINGER
1 hour ago
$begingroup$
Is this calculating an average or cropping to a corner? eg will a b&w chessboard image fade to gray?
$endgroup$
– batFINGER
1 hour ago
$begingroup$
It will eventually fade to grey. imgur.com/PyeKlty In case of black and white it is going to be a linear grey so to human eye it is going to be light grey, grey to us is around 21.4% or 18% depending on who you ask. The problem here is that it relies on sampling so it may need a lot of samples for the noise to clear up.
$endgroup$
– Martin Z
10 mins ago
$begingroup$
It will eventually fade to grey. imgur.com/PyeKlty In case of black and white it is going to be a linear grey so to human eye it is going to be light grey, grey to us is around 21.4% or 18% depending on who you ask. The problem here is that it relies on sampling so it may need a lot of samples for the noise to clear up.
$endgroup$
– Martin Z
10 mins ago
add a comment |
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-color, nodes, texturing
$begingroup$
Is it Cycles you are working with? Blender version 2.79b?
$endgroup$
– Martin Z
15 hours ago