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Answers for “为什么说算子和函数一样有输入和输出?”

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Understand why

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Operators are said to have inputs and outputs because they function as tools that require data or paths to process (inputs) and return processed results or objects (outputs). This mechanism ensures clear, modular data-processing workflows.

Conditions: Applicable to HALCON operators with input and output parameters.; The operator call is demonstrated in the HDevelop environment.

Meet the concept

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In HALCON, an operator is essentially the same as a function in standard programming. They are prewritten tools designed to perform specific tasks.

Conditions: Applicable to understanding operator instructions in HALCON software.; The comparison is between HALCON operators and standard programming functions.

Meet the concept

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In HALCON, an operator is a set of algorithmic tools provided by the developers. It is analogous to a function in standard programming, designed to perform specific image processing tasks by accepting inputs and producing outputs.

Conditions: The discussion is restricted to the HALCON software environment.; Operators are analogized to functions with inputs and outputs.

Find a method

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To obtain the width and height of an image in HALCON, you use the get_image_size operator. You pass the loaded image variable as an input, and declare Width and Height variables as outputs to receive the pixel dimensions.

Conditions: The image must already be loaded into a variable (e.g., using read_image).; The operator get_image_size is called in the HDevelop environment.