如何在 Javascript 中将 PNG 转换为 SVG

Question

I want to convert png, base64 to SVG

therefore I can delete a specific part of the image which is only possible in SVG.

Basically I want to achieve erase functionality by deleting a path from SVG

I've tried this

var canvas = document.getElementById('canvas');
var svg = canvas.toDataURL('svg', 1.0);

But I guess there is no argument for SVG on canvas.

Do we have any method to convert?

Answer 1

PNG is a raster format... you end up with a grid of pixels. SVG is a vector format... effectively commands to draw shapes and paths with certain styles.

They are inherently incompatible. You cannot convert from a PNG to an SVG. (Well, not usefully. I suppose you could draw a rectangle for each pixel, but why would you? The size would be huge.)