Does anyone know of a lightweight module (nodejs or JavaScript) that will detect a pixels color for example the top left pixel of an image?
I am essentially looking to detect if an uploaded image has a transparent background or not.
What about this:
You may need to play with it outside Wappler to speed up learning
A matrix is an array of arrays - a bi-dimensional array
image[0][0] gets you the RGBA values of pixel (0, 0)
I believe you check the A value for transparency
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