A set of nodes for ComfyUI that can composite layer and mask to achieve Photoshop like functionality.
The LayerMask: BlendIf Mask node is a component of the ComfyUI system designed to manipulate and blend images based on specific criteria. This node is particularly useful for creating masks that define which parts of an image should be visible or hidden, depending on their color channel intensity.
This node processes images to generate masks that can be applied for selective visibility. By analyzing color channels (red, green, blue, or grayscale), it can determine areas of an image to be masked based on specified black and white point thresholds.
The LayerMask: BlendIf Mask node accepts the following inputs:
Image (Required): The primary image or a batch of images to process. The input is expected in a format compatible with ComfyUI's image handling.
Invert Mask (Boolean): A toggle that determines whether the generated mask should be inverted. By default, this is set to True.
Blend If (Choice): Selects the color channel for blending. Options include:
Black Point (Integer): Specifies the lower threshold for blending. Values closer to 0 will allow darker parts of the image to be more visible in the mask.
Black Range (Integer): Defines the range around the black point for more flexible thresholding to control the blending.
White Point (Integer): Sets the upper threshold for blending. Values closer to 255 increase the visibility of lighter parts of the image.
White Range (Integer): Similar to black range, it provides flexibility around the white point threshold.
Mask (Optional): An additional input mask that can be applied alongside the generated mask. This allows for further customization and selective masking.
The node produces the following output:
In ComfyUI workflows, the LayerMask: BlendIf Mask node is utilized to create dynamic and flexible image compositions. For instance, artists working with overlay effects can use this node to precisely control which areas of an image should appear or be hidden based on color intensity.
This node is particularly beneficial in cases where image blending needs to be controlled based on specific color channels. This is common in tasks such as color correction, thematic editing, and even artistic design applications where certain color aspects need emphasis or suppression.
Flexibility in Masking: The node allows for detailed control over the masking process through adjustable black and white thresholds and ranges, offering precision in blending operations.
Batch Processing: The node can process multiple images at once, making it efficient for workflows that involve numerous images or layers.
Color Channel Selection: With the ability to choose specific color channels, users can refine masks based on particular color intensities, enhancing creative control over compositions.
Invert Mask Option: By providing an option to invert the mask, the node adds versatility in achieving desired visual effects.
While using the LayerMask: BlendIf Mask node, it is important to consider the nature of the images and their color distributions, as this will impact the effectiveness of the generated masks. Proper adjustment of input parameters is key to obtaining the desired results.
This node is an effective tool within the ComfyUI environment, broadening the range of creative possibilities available to users in manipulating and blending image layers.