ComfyUI Node: 🎨 Sample Image Area as Palette

Sample Image Area as Palette [Dream]:

The "Sample Image Area as Palette" node is designed to extract a color palette from a specific area of an image. This node allows you to focus on a particular section of an image, such as the top-left or center, and sample colors from that area to create a palette. This can be particularly useful for AI artists who want to capture the essence of a specific part of an image and use those colors in their artwork. By providing control over the number of samples and the area of the image to be sampled, this node offers a flexible and powerful way to generate color palettes that reflect the unique characteristics of different image regions.

Sample Image Area as Palette [Dream] Input Parameters:

image

This parameter expects an image input from which the color palette will be sampled. The image serves as the source for extracting colors based on the specified area and sampling settings.

samples

This parameter determines the number of color samples to be taken from the specified area of the image. The more samples you take, the more detailed and accurate the resulting palette will be. The default value is 256, with a minimum of 1 and a maximum of 4096.

seed

The seed parameter is used to initialize the random number generator that selects the pixel locations for sampling. By setting a specific seed value, you can ensure that the same set of pixels is sampled each time, which is useful for reproducibility. The default value is 0, with a range from 0 to 0xffffffffffffffff.

area

This parameter specifies the area of the image from which the colors will be sampled. You can choose from predefined options such as "top-left", "center", "bottom-right", etc. This allows you to focus on a specific region of the image that you find most interesting or relevant for your palette.

Sample Image Area as Palette [Dream] Output Parameters:

palette

The output is an RGBPalette object that contains the colors sampled from the specified area of the image. This palette can be used in various ways, such as applying it to other images, generating new artwork, or analyzing the color composition of the selected area.

Sample Image Area as Palette [Dream] Usage Tips:

• To capture the essence of a specific part of an image, choose the area parameter that best represents the region you are interested in.
• Experiment with different sample sizes to find the right balance between detail and performance. More samples will give you a more accurate palette but may take longer to process.
• Use the seed parameter to ensure reproducibility when you need to generate the same palette multiple times.

Sample Image Area as Palette [Dream] Common Errors and Solutions:

"Invalid image input"

• Explanation: The image input provided is not in the correct format or is missing.
• Solution: Ensure that you provide a valid image input in the expected format.

"Samples out of range"

• Explanation: The number of samples specified is outside the allowed range.
• Solution: Adjust the samples parameter to be within the range of 1 to 4096.

"Invalid area selection"

• Explanation: The area parameter is set to an invalid value.
• Solution: Choose a valid area option from the predefined list such as "top-left", "center", "bottom-right", etc.

"Seed value out of range"

• Explanation: The seed value provided is outside the acceptable range.
• Solution: Ensure the seed value is within the range of 0 to 0xffffffffffffffff.