How can I remove blank part of image using javascript?

Alberts Kresi @kresi

About: I'm web Three.js developer that have 5 years experience.

Location:

Riga, Latvia

Joined:

Jul 1, 2024

Publish Date: Aug 19 '24

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PNG image is taken from canvas.
But there is blank part.
This is the image.

How can I remove blank part of image using javascript?
If anyone knows, please help me.

Thank you.