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https://github.com/peterbraden/node-opencv.git
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31 lines
942 B
JavaScript
31 lines
942 B
JavaScript
var cv = require('../lib/opencv');
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cv.readImage("./files/mona.png", function(err, orig) {
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if (err) throw err;
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var chan1 = orig.split()[0];
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var floatMatrix = new cv.Matrix();
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var chan1Back = new cv.Matrix();
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chan1.convertTo(floatMatrix, cv.Constants.CV_32F);
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floatMatrix.convertTo(chan1Back, cv.Constants.CV_8U);
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var rowId = 0;
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var colId = 0;
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console.log(orig.get(rowId,colId), orig.pixel(rowId, colId));
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// ACTUAL : => -8.425768939900947e-273 [25, 51, 57]
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// EXPECTED : => [25, 51, 57] (this is R : 57 G : 51 and B : 25)
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console.log(chan1.get(rowId,colId), chan1.pixel(rowId, colId));
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// ACTUAL => 1.76244473776441e-105 36
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// EXPECTED => 154
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console.log(floatMatrix.get(rowId,colId), floatMatrix.pixel(rowId, colId));
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// ACTUAL => 481036405168
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// EXPECTED => 154.0
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console.log(chan1Back.get(rowId,colId), chan1Back.pixel(rowId, colId));
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// ACTUAL => 1.76244473776441e-105
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// EXPECTED => 154
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});
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