ComfyUI Node: Topaz Upscale Parameters

Topaz Upscale Parameters:

The TopazUpscaleParams node is designed to enhance video quality by applying advanced upscaling techniques using Topaz Video AI models. This node allows you to upscale video content, improving its resolution and visual clarity, which is particularly beneficial for AI artists looking to enhance the quality of their video projects. By leveraging various upscale models, you can achieve different aesthetic results, catering to specific artistic needs. The node also provides options for compression and blending, allowing for fine-tuning of the output to balance between quality and file size. This flexibility makes it a powerful tool for video enhancement, enabling you to produce high-quality outputs with ease.

Topaz Upscale Parameters Input Parameters:

images

This parameter expects an input of type IMAGE. It represents the video frames that you want to upscale. The quality and resolution of these images will be enhanced based on the other parameters you set.

enable_upscale

This is a BOOLEAN parameter with a default value of False. When set to True, it activates the upscaling process. This parameter is crucial as it determines whether the node will perform the upscaling operation.

upscale_factor

A FLOAT parameter with a default value of 2.0, and it ranges from 1.0 to 4.0 with a step of 0.5. This parameter controls the scale factor by which the video resolution will be increased. A higher value results in a larger output resolution.

upscale_model

This parameter allows you to select from a list of upscale models, with a default model of "thf-4". Each model offers different upscaling characteristics, affecting the final output's visual style and quality.

compression

A FLOAT parameter with a default value of 1.0, ranging from -1.0 to 1.0 with a step of 0.1. This parameter adjusts the level of compression applied to the output video, influencing both the file size and quality.

blend

This FLOAT parameter has a default value of 0.0, ranging from 0.0 to 1.0 with a step of 0.1. It controls the blending of the original and upscaled images, allowing for a mix of both to achieve a desired visual effect.

enable_interpolation

A BOOLEAN parameter with a default value of False. When enabled, it allows for frame interpolation, which can smooth out motion in the video by generating intermediate frames.

input_fps

An INT parameter with a default value of 24, ranging from 1 to 240. It specifies the frames per second of the input video, which is important for maintaining the correct playback speed after processing.

interpolation_multiplier

A FLOAT parameter with a default value of 2.0, ranging from 1.0 to 8.0 with a step of 0.5. This parameter determines the factor by which the frame rate is increased during interpolation.

interpolation_model

This parameter allows you to choose from a list of interpolation models, with a default model of "apo-8". Different models can produce varying results in terms of motion smoothness and visual quality.

use_gpu

A BOOLEAN parameter with a default value of True. It specifies whether to use GPU acceleration for processing, which can significantly speed up the upscaling and interpolation tasks.

topaz_ffmpeg_path

A STRING parameter with a default path of "C:\Program Files\Topaz Labs LLC\Topaz Video AI". It indicates the location of the Topaz Video AI executable, which is necessary for performing the upscaling operations.

force_topaz_ffmpeg

A BOOLEAN parameter with a default value of True. This ensures that the Topaz-specific version of FFmpeg is used, which is optimized for the upscaling tasks.

save_video

A BOOLEAN parameter with a default value of False. When enabled, it saves the processed video to disk, allowing you to retain the enhanced output for further use.

filename_prefix

A STRING parameter with a default value of "TopazVideo". It sets the prefix for the output video file name, helping you organize and identify processed files easily.

previous_upscale

This optional parameter of type UPSCALE_PARAMS allows you to pass in parameters from a previous upscaling operation, enabling you to build upon or modify existing settings.

Topaz Upscale Parameters Output Parameters:

None

The context does not provide explicit output parameters for this node. However, the node's primary function is to process and enhance video frames, which are typically saved as output files when save_video is enabled.

Topaz Upscale Parameters Usage Tips:

• To achieve the best quality, experiment with different upscale_model options to find the one that best suits your artistic vision.
• Use the blend parameter to subtly mix the original and upscaled images, which can help maintain a natural look while enhancing resolution.
• Enable use_gpu to significantly reduce processing time, especially for high-resolution videos or when using complex models.

Topaz Upscale Parameters Common Errors and Solutions:

"thm-2 forces upscale_factor=1.0"

• Explanation: The thm-2 model requires an upscale_factor of 1.0, and any other value will be automatically adjusted.
• Solution: Ensure that when using the thm-2 model, you set the upscale_factor to 1.0 to avoid this warning.

"Invalid path for Topaz FFmpeg"

• Explanation: The specified path for the Topaz FFmpeg executable is incorrect or the file is missing.
• Solution: Verify the topaz_ffmpeg_path to ensure it points to the correct installation directory of Topaz Video AI.