ComfyUI Node: LayerColor: YUV

LayerColor: YUV:

The LayerColor: YUV node is designed to adjust the color properties of an image using the YUV color space, which separates the image into luminance (Y) and chrominance (U and V) components. This node allows you to fine-tune the brightness and color balance of your images by modifying these components individually. The YUV color space is particularly useful for tasks that require precise control over brightness and color, as it separates these aspects more distinctly than the RGB color space. By adjusting the Y, U, and V values, you can achieve a wide range of visual effects, from subtle color corrections to dramatic changes in the image's appearance.

LayerColor: YUV Input Parameters:

image

This parameter accepts the input image that you want to process. The image should be in a format compatible with the node, typically a tensor representation of the image.

Y

This parameter controls the luminance (brightness) of the image. Adjusting the Y value will make the image brighter or darker. The value ranges from -255 to 255, with a default value of 0. Increasing the Y value will brighten the image, while decreasing it will darken the image.

U

This parameter adjusts the U component of the chrominance, which affects the blue-yellow color balance of the image. The value ranges from -255 to 255, with a default value of 0. Increasing the U value will add more blue to the image, while decreasing it will add more yellow.

V

This parameter adjusts the V component of the chrominance, which affects the red-green color balance of the image. The value ranges from -255 to 255, with a default value of 0. Increasing the V value will add more red to the image, while decreasing it will add more green.

LayerColor: YUV Output Parameters:

image

The output is the processed image with the applied YUV adjustments. This image will reflect the changes made to the luminance and chrominance components based on the input parameters. The output is typically in the same format as the input image, ensuring compatibility with subsequent nodes or processes.

LayerColor: YUV Usage Tips:

• To enhance the brightness of an image without altering its color balance, adjust the Y parameter while keeping U and V at their default values.
• For color correction, experiment with small adjustments to the U and V parameters to achieve the desired color balance without significantly affecting the image's brightness.
• Use this node in combination with other color correction nodes (like RGB or HSV) for more complex color grading tasks.

LayerColor: YUV Common Errors and Solutions:

Invalid image format

• Explanation: The input image is not in a compatible format.
• Solution: Ensure that the input image is a tensor representation and is correctly formatted before passing it to the node.

Value out of range

• Explanation: One of the Y, U, or V values is outside the acceptable range of -255 to 255. - Solution: Check the input values for Y, U, and V and ensure they are within the specified range.

Processing error

• Explanation: An error occurred during the image processing.
• Solution: Verify that the input image is not corrupted and that all parameters are set correctly. If the problem persists, try using a different image or adjusting the parameter values.