FluxProCannyNode - ComfyUI Built-in Node Documentation - ComfyUI

Generate image using a control image (canny). This node takes a control image and generates a new image based on the provided prompt while following the edge structure detected in the control image.

Inputs

Parameter	Description	Data Type	Required	Range
`control_image`	The input image used for canny edge detection control	IMAGE	Yes	-
`prompt`	Prompt for the image generation (default: empty string)	STRING	No	-
`prompt_upsampling`	Whether to perform upsampling on the prompt. If active, automatically modifies the prompt for more creative generation, but results are nondeterministic (same seed will not produce exactly the same result). (default: False)	BOOLEAN	No	-
`canny_low_threshold`	Low threshold for Canny edge detection; ignored if `skip_preprocessing` is True (default: 0.1)	FLOAT	No	0.01 - 0.99
`canny_high_threshold`	High threshold for Canny edge detection; ignored if `skip_preprocessing` is True (default: 0.4)	FLOAT	No	0.01 - 0.99
`skip_preprocessing`	Whether to skip preprocessing; set to True if `control_image` already is canny-fied, False if it is a raw image. (default: False)	BOOLEAN	No	-
`guidance`	Guidance strength for the image generation process (default: 30)	FLOAT	No	1 - 100
`steps`	Number of steps for the image generation process (default: 50)	INT	No	15 - 50
`seed`	The random seed used for creating the noise. (default: 0)	INT	No	0 - 18446744073709551615

Note: When skip_preprocessing is set to True, the canny_low_threshold and canny_high_threshold parameters are ignored since the control image is assumed to already be processed as a canny edge image. The control_image is then used directly as the preprocessed image.

Outputs

Output Name	Description	Data Type
`output_image`	The generated image based on the control image and prompt	IMAGE

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