Tool to create fingerprint images?

PacCeggowk9oc · April 26, 2025, 7:24pm

Is there some tool to create fingerprint images like on acoustid.org, to compare submitted fingerprints to local files?

PacCeggowk9oc · May 4, 2025, 4:57pm

For reference, the code that creates the images on the website is renderFingerprintData here:

acoustid/web/static/fputils.js

master

function renderFingerprintData(ctx, fp)
{
    var pixels = ctx.createImageData(32, fp.length);
    var idx = 0;
    for (var i = 0; i < fp.length; i++) {
        for (var j = 0; j < 32; j++) {
            if (fp[i] & (1 << j)) {
                pixels.data[idx + 0] = 255;
                pixels.data[idx + 1] = 255;
                pixels.data[idx + 2] = 255;
            }
            else {
                pixels.data[idx + 0] = 0;
                pixels.data[idx + 1] = 0;
                pixels.data[idx + 2] = 0;
            }
            pixels.data[idx + 3] = 255;
            idx += 4;
        }
    }

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