The charcoal() function is an inbuilt function in the Pgmagick library which is used to to add a charcoal filter to the image. The function returns the true value on success.
Parameters: This function accepts single parameters as mentioned above and described below:
- factor: This parameter stores the value of the charcoal factor which is to be apply on the image.
Return Value: This function returns the Pgmagick object with image added.
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