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https://github.com/peterbraden/node-opencv.git
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28 lines
959 B
JavaScript
Executable File
28 lines
959 B
JavaScript
Executable File
var cv = require('../lib/opencv');
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cv.readImage('./files/mona.png', function(err, im) {
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if (err) throw err;
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if (im.width() < 1 || im.height() < 1) throw new Error('Image has no size');
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// getrefCount will give the refcount. if > 0, then a reference ptr is present, and the value returned.
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// if -1, no reference pointer was present (i.e. the mat does not know about any data).
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var refcount = im.getrefCount();
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console.log('initial refcount '+refcount);
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if (refcount !== 1)
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throw "refcountmismatch - initial should be 1";
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im.release();
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var refcount3 = im.getrefCount();
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console.log('refcount after release (seems should be -1) '+refcount3);
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if (refcount3 !== -1)
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throw "refcountmismatch - after release should be -1";
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// data is now still there somewhere, but lost to us - this is NOT a good situation.
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// should not fail - but will do absolutely nothing
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im.release();
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console.log('did all refcount tests');
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});
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