Autochrome Noise effect

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Auto Chrome Noise Effect Plugin

Model / Result :

autochrom01.jpg   autochrom.jpg

( original model from )



What's this?

Autochrome is a primilary method to obtain colored photos. See the wiki for more info

This effect create a noise in Orange (25%), Green (40%) and Purple (35%) pixels.


Mixed with/over picture it could give some old aspect...



Download it!

Plugin AutoChromeNoise.dll

ar.pngHere is the DLLal.png


The MadJik's All plugins package is available !



How to install


Unzip and (re)place the DLL in your Effect folder usually: C:/Program Files/Paint.NET/Effects



The User interface

This plugin is added to the menu Effects, submenu Noise.


Orange / Green / Purple %: set the amount value of the basic colors.

Back color %:

...This is the ratio for the back color as the grains shouldn't cover 100% of the picture, usualy 3%. This uses the primary color.

Color Variation: could add a random variation to the basic colors to make it less regular.

Merge with image:

...This mixes the noise with the image if the color of autochrome and the color of the image are "similar", other pixels are turned to grey scale.

red <--> orange, green <--> green, blue <--> purple

Mask Orange-Green-Purple:

...If checked the image is replaced by the basic colors where the color of autochrome and the color of the image are "similar".


...This is a slider to make the basic colors remain stable in horizontal lines.

Effect Mix:

...This is a slider to mix the final image with the orignal image to make the effect more or less subtile.

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Updated user interface and Russian translation (thanks to @ReMake).


Playing with this plugin I found a possibility I'm sharing:




Set back color % to 0

Check Mask Orange-Green-Purple

and play with Color variation.


Model / Result



Oiseau1.jpg Oiseau2.jpg


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