ComfyUI Node: SeedVR2 Tile Splitter (Shortest Edge)

SeedVR2 Tile Splitter (Shortest Edge):

The SeedVR2TileSplitterByShortestEdge node is designed to split an image into a grid of tiles based on the shortest edge of the image. This node allows you to specify the desired output size by setting a minimum pixel length for the shortest edge, rather than using megapixels as a measure. This approach is particularly beneficial when you want to maintain a specific level of detail across all tiles, ensuring that even the smallest dimension of the image meets your resolution requirements. The node automatically calculates the necessary upscale factor based on the image's aspect ratio, making it easier to achieve consistent results without manually adjusting for different image sizes. This functionality is especially useful for artists and designers who need to work with images of varying dimensions but want to ensure uniformity in the output tiles.

SeedVR2 Tile Splitter (Shortest Edge) Input Parameters:

image

The image parameter is the input image that you want to split into tiles. It should be provided in a format that the node can process, typically as an image file. This parameter is crucial as it serves as the base for all subsequent operations performed by the node.

tile_size_mp

The tile_size_mp parameter specifies the maximum size of each tile in megapixels. It ranges from 0.1 to 16.0, with a default value of 1.0. This parameter controls the amount of VRAM used per pass, with lower values resulting in less VRAM usage. Adjusting this parameter allows you to balance between performance and the level of detail in each tile.

shortest_edge_px

The shortest_edge_px parameter defines the desired pixel length of the shortest edge in the final output tiles. It ranges from 64 to 16384, with a default value of 2048. This parameter ensures that the smallest dimension of each tile meets a specific resolution, which is essential for maintaining detail and quality across all tiles.

overlap_percent

The overlap_percent parameter determines the overlap between adjacent tiles as a percentage of the tile size. This overlap helps in blending the tiles seamlessly when they are stitched back together, reducing visible seams and ensuring a smooth transition between tiles.

feather_blend

The feather_blend parameter controls the blending of tile edges. It ranges from 0.0 to 1.0, with a default value of 1.0. A value of 1.0 results in a smooth feather blend, while a value of 0.0 results in a hard cut. This parameter is important for achieving a natural look in the final image by softening the edges of each tile.

SeedVR2 Tile Splitter (Shortest Edge) Output Parameters:

tiles

The tiles output parameter represents the collection of image tiles generated by the node. Each tile is a section of the original image, split according to the specified shortest edge and other parameters. These tiles can be used individually or recombined to form a larger image, depending on your project needs.

SeedVR2 Tile Splitter (Shortest Edge) Usage Tips:

• To maintain a consistent level of detail across all tiles, set the shortest_edge_px parameter to match the resolution requirements of your project.
• Use the feather_blend parameter to ensure smooth transitions between tiles, especially when the tiles will be recombined into a single image.
• Adjust the tile_size_mp parameter to optimize VRAM usage, particularly when working with large images or limited hardware resources.

SeedVR2 Tile Splitter (Shortest Edge) Common Errors and Solutions:

"Image format not supported"

• Explanation: The input image is in a format that the node cannot process.
• Solution: Convert the image to a supported format, such as JPEG or PNG, and try again.

"Tile size exceeds maximum limit"

• Explanation: The specified tile_size_mp exceeds the node's maximum allowable size.
• Solution: Reduce the tile_size_mp value to within the acceptable range and reprocess the image.

"Shortest edge value out of range"

• Explanation: The shortest_edge_px value is set outside the permissible range.
• Solution: Adjust the shortest_edge_px to a value between 64 and 16384 and retry the operation.