comfyui-propost

ComfyUI ProPost

A set of custom ComfyUI nodes for performing basic post-processing effects. These effects can help to take the edge off AI imagery and make them feel more natural. We only have five nodes at the moment, but we plan to add more over time.

ComfyUI Screenshot using Pro Post

Installation

The easiest way is using the ComfyUI Manager to install this package. Just search for propost and click install.

Manual Installation

• Navigate to the /ComfyUI/custom_nodes/ folder
• Run git clone https://github.com/digitaljohn/comfyui-propost.git
• Run pip install -r requirements.txt
• Restart ComfyUI

Nodes

Film Grain

A film grain effect with many parameters to control the look of the grain. It can create different noise types and patterns, and it can be used to create a variety of film grain looks.

Pro Post Film Grain Example

Parameter	Default	Type	Description
gray_scale	false	Boolean	Enables grayscale mode. If true, the output will be in grayscale.
grain_type	Fine	String	Sets the grain type. Values can be Fine, Fine Simple, Coarse, or Coarser.
grain_sat	0.5	Float	Grain color saturation, with a range of 0.0 to 1.0.
grain_power	0.7	Float	Overall intensity of the grain effect.
shadows	0.2	Float	Intensity of grain in the shadows.
highs	0.2	Float	Intensity of grain in the highlights.
scale	1.0	Float	Image scaling ratio. Scales the image before applying grain and scales back afterwards.
sharpen	0	Integer	Number of sharpening passes.
src_gamma	1.0	Float	Gamma compensation applied to the input.
seed	1	Integer	Seed for the grain random generator.

Note: This code is a direct port/lift of the versatile Filmgrainer library available here: https://github.com/larspontoppidan/filmgrainer

Vignette

A simple vignette effect that darkens the edges of the screen. It supports very subtle vignettes, as well as more pronounced ones.

Pro Post Film Grain Example

Parameter	Default	Type	Description
intensity	1.0	Float	The intensity of the vignette effect, with a range of 0.0 to 10.0.
center_x	0.5	Float	The x-coordinate of the center of the vignette. 0.0 to 1.0.
center_y	0.5	Float	The y-coordinate of the center of the vignette. 0.0 to 1.0.

Radial Blur

This filter allows you to blur the edges of the image. It has a few different options that allows you to accomplish a variety of effects.

Pro Post Radial Blur Example

Parameter	Default	Type	Description
blur_strength	64.0	Float	The intensity of the blur at the edges, with a range of 0.0