Images Pixels Compare

Images Pixels Compare

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Overview

The Images Pixels Compare node compares two input images at the pixel level to check whether they are exactly the same, and outputs a boolean value.

• Class name: zyd232 ImagesPixelsCompare
• Category: zyd232 Nodes
• Output: BOOLEAN

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Inputs

Input	Type	Description
image1	IMAGE	First image to compare
image2	IMAGE	Second image to compare
if_same_output	BOOLEAN	Output logic switch (default true)

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Output

Output	Type	Description
BOOLEAN	BOOLEAN	Comparison result

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How It Works

The node compares all pixel values of the two images to check if they are identical:

• When if_same_output = true, it outputs true if the two images are identical, false if they differ.
• When if_same_output = false, the output logic is inverted: it outputs true if the two images differ, false if they are identical.

Different sizes

If the two images have different shapes (sizes), the node cannot compare pixel by pixel. In that case it returns based on the switch:

• if_same_output = true → returns false (treated as different)
• if_same_output = false → returns true (treated as different)

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Usage Example

Useful for workflow control, for example:

• Determine whether the output image of a step has changed, to decide whether to continue downstream processing.
• Combine with the if_same_output switch to implement "if same, do A; if different, do B" branching logic.

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