ComfyUI Node: ColorMod (compress)

ColorMod (compress):

The ColorModCompress node is designed to manipulate the color values of an image using three distinct modes: clip, normalize, and compress. This node is particularly useful for AI artists who want to adjust the dynamic range and intensity of colors in their images. By using this node, you can ensure that the color values of your image are within a desired range, either by clipping values to a specific range, normalizing the entire image to fit within a 0 to 1 range, or compressing the color values to enhance the visual contrast. This node helps in maintaining the visual quality and consistency of images, making it an essential tool for color correction and enhancement in AI-generated art.

ColorMod (compress) Input Parameters:

image

The image parameter is the input image that you want to process. It should be provided in a format that the node can understand, typically as a tensor. This image will undergo the selected color modification process based on the mode you choose.

mode

The mode parameter determines the type of color modification to apply to the image. It accepts three options: "clip", "normalize", and "compress".

• clip: This mode clips the color values of the image to be within the range of 0.0 to 1.0, ensuring that no values fall outside this range.
• normalize: This mode normalizes the color values of the image so that the minimum value becomes 0.0 and the maximum value becomes 1.0, effectively stretching the dynamic range of the image.
• compress: This mode compresses the color values by adjusting the lower and upper bounds, enhancing the contrast within the image. It ensures that values below 0.0 are brought closer to 0.0 and values above 1.0 are brought closer to 1.0.

ColorMod (compress) Output Parameters:

IMAGE

The output parameter IMAGE is the processed image after the selected color modification has been applied. This image will have its color values adjusted according to the mode specified, ensuring that the colors are within the desired range and enhancing the overall visual quality.

ColorMod (compress) Usage Tips:

• To ensure that your image's color values are within a standard range, use the "clip" mode. This is particularly useful when you want to avoid any color values that might be too dark or too bright.
• Use the "normalize" mode when you want to enhance the dynamic range of your image, making the darkest parts completely black and the brightest parts completely white.
• The "compress" mode is ideal for enhancing the contrast of your image, making subtle color differences more pronounced and visually appealing.

ColorMod (compress) Common Errors and Solutions:

Unknown mode '<mode>'

• Explanation: This error occurs when an invalid mode is provided to the mode parameter.
• Solution: Ensure that the mode parameter is set to one of the following valid options: "clip", "normalize", or "compress". Double-check for any typos or incorrect values.

Failed to process image

• Explanation: This error might occur if the input image is not in the correct format or if there is an issue with the image data.
• Solution: Verify that the input image is correctly formatted and is a valid tensor. Ensure that the image data is not corrupted and is compatible with the node's processing requirements.