ComfyUI Node: Upscale Image (using Model)

Upscale Image (using Model):

The ImageUpscaleWithModel node is designed to enhance the resolution of images using advanced upscaling models. This node leverages sophisticated machine learning models to upscale images, ensuring that the resulting images maintain high quality and detail. The primary benefit of using this node is its ability to handle large images efficiently by processing them in tiles, which helps manage memory usage and prevents out-of-memory errors. This method is particularly useful for AI artists who need to upscale images for high-resolution outputs without compromising on quality.

Upscale Image (using Model) Input Parameters:

upscale_model

The upscale_model parameter specifies the machine learning model used for upscaling the image. This model is responsible for interpreting the input image and generating a higher-resolution version. The choice of model can significantly impact the quality and characteristics of the upscaled image. Ensure that the model is compatible with the node and is designed for image upscaling tasks.

image

The image parameter is the input image that you want to upscale. This image should be in a format that the node can process, typically a tensor representation of the image. The quality and resolution of the input image will influence the final upscaled output, so starting with a high-quality image is recommended.

Upscale Image (using Model) Output Parameters:

IMAGE

The output parameter is the upscaled image. This image is the result of processing the input image through the specified upscaling model. The output image will have a higher resolution than the input image, with enhanced details and quality, making it suitable for high-resolution displays or further processing.

Upscale Image (using Model) Usage Tips:

• Ensure that your input image is of high quality to get the best results from the upscaling process.
• Choose an upscaling model that is well-suited for your specific type of image to achieve optimal results.
• Be mindful of the memory requirements, especially when working with very large images. Adjust the tile size if you encounter memory issues.

Upscale Image (using Model) Common Errors and Solutions:

Out of Memory (OOM) Exception

• Explanation: This error occurs when the node tries to process an image that exceeds the available memory.
• Solution: Reduce the tile size used for processing the image. The node will automatically attempt to halve the tile size if an OOM error is encountered, but you can manually set a smaller tile size to prevent this error.

Model Not Found

• Explanation: This error occurs if the specified upscaling model is not available or not loaded correctly.
• Solution: Ensure that the upscaling model is correctly installed and accessible by the node. Verify the model path and compatibility.

Invalid Image Format

• Explanation: This error occurs if the input image is not in a format that the node can process.
• Solution: Convert the input image to a compatible format, typically a tensor representation, before passing it to the node.