ComfyUI Node: ◐ Image Contrast Adjustment

Image Contrast Adjustment [Dream]:

The Image Contrast Adjustment [Dream] node is designed to enhance the visual quality of your images by adjusting their contrast levels. This node allows you to fine-tune the contrast, making the dark areas darker and the light areas lighter, which can significantly improve the overall appearance and depth of your images. By manipulating the contrast, you can bring out hidden details, emphasize textures, and create a more dynamic and visually appealing image. This node is particularly useful for AI artists looking to add more definition and clarity to their artwork, ensuring that the final output is both striking and professional.

Image Contrast Adjustment [Dream] Input Parameters:

image

This parameter accepts the image you want to adjust. The input type is IMAGE, which means you need to provide an image file that the node will process. The image serves as the base on which the contrast adjustment will be applied.

factor

The factor parameter controls the level of contrast adjustment applied to the image. It is a floating-point value with a default of 1.0, a minimum of 0.0, and no specified maximum. A factor of 1.0 means no change in contrast, values greater than 1.0 increase the contrast, making the dark areas darker and the light areas lighter, while values less than 1.0 decrease the contrast, making the image appear more washed out. Adjusting this parameter allows you to achieve the desired contrast effect in your image.

Image Contrast Adjustment [Dream] Output Parameters:

image

The output parameter image is the processed image with the adjusted contrast. This output retains the same format as the input image but with the contrast levels modified according to the specified factor. The adjusted image will have enhanced visual properties, making it more appealing and detailed.

Image Contrast Adjustment [Dream] Usage Tips:

• Experiment with different factor values to find the optimal contrast level for your image. Start with small increments to see how the changes affect the overall appearance.
• Use higher contrast values to emphasize textures and details in images with a lot of intricate patterns or fine details.
• For images that appear too harsh or have too much contrast, lower the factor value to achieve a softer, more balanced look.

Image Contrast Adjustment [Dream] Common Errors and Solutions:

Invalid image input

• Explanation: This error occurs when the provided image is not in a supported format or is corrupted.
• Solution: Ensure that the image file is in a compatible format (e.g., JPEG, PNG) and is not damaged. Try reloading the image or using a different file.

Factor value out of range

• Explanation: This error happens when the factor value is set below the minimum allowed value of 0.0.
• Solution: Adjust the factor value to be within the valid range, ensuring it is 0.0 or higher.

Processing error

• Explanation: This error indicates a problem during the image processing stage, possibly due to insufficient memory or other system resources.
• Solution: Close other applications to free up system resources and try processing the image again. If the problem persists, consider using a smaller image or reducing the resolution.