ComfyUI Node: ImageMagick Brightness Contrast

ImageMagick Brightness Contrast:

The ImageMagick Brightness Contrast node is designed to enhance the visual quality of your images by adjusting their brightness and contrast levels. This node allows you to fine-tune the luminance and contrast of an image, making it either more vibrant or more subdued based on your artistic needs. By manipulating these parameters, you can bring out hidden details, improve the overall aesthetic, and create a specific mood or atmosphere in your artwork. This node is particularly useful for correcting underexposed or overexposed images, as well as for achieving a desired artistic effect.

ImageMagick Brightness Contrast Input Parameters:

image

This parameter represents the input image that you want to adjust. It accepts an image file in a compatible format.

brightness

This parameter controls the brightness level of the image. Increasing the brightness value will make the image lighter, while decreasing it will make the image darker. The value ranges from 0.0 to 1024, with a default value of 0.0. Adjusting this parameter can help correct underexposed images or create a specific lighting effect.

contrast

This parameter adjusts the contrast level of the image. Higher contrast values will make the dark areas darker and the light areas lighter, enhancing the overall difference between light and dark regions. The value ranges from 0.0 to 1024, with a default value of 0.0. Modifying this parameter can help bring out details and improve the image's clarity.

ImageMagick Brightness Contrast Output Parameters:

IMAGE

The output is the adjusted image with the applied brightness and contrast settings. This enhanced image can be used for further processing or as a final output for your artistic projects.

ImageMagick Brightness Contrast Usage Tips:

• To correct an underexposed image, try increasing the brightness parameter gradually until the desired exposure is achieved.
• For a dramatic effect, increase both the brightness and contrast parameters to make the image more vibrant and visually striking.
• If the image appears too harsh, reduce the contrast to soften the transitions between light and dark areas.

ImageMagick Brightness Contrast Common Errors and Solutions:

ValueError: Unsupported image format

• Explanation: This error occurs when the input image is in a format that is not supported by the node.
• Solution: Ensure that the input image is in a compatible format such as JPEG, PNG, or TIFF.

TypeError: Brightness and contrast values must be floats

• Explanation: This error happens when the brightness or contrast values are not provided as floating-point numbers.
• Solution: Make sure to input the brightness and contrast values as floats, for example, 0.5 or 100.0.

RuntimeError: Image processing failed

• Explanation: This error indicates that there was an issue during the image processing stage.
• Solution: Check the input image and parameter values for any anomalies. If the problem persists, try using a different image or adjusting the parameter values.