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30 lines
1.2 KiB
CoffeeScript
30 lines
1.2 KiB
CoffeeScript
cv = require('opencv')
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cv.readImage("./images/mona.png", (err, im) ->
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# Create new NamedWindow object to hold the image
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# NamedWindow takes two arguments String WindowName and String windowSize
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namedWindow = new cv.NamedWindow('Display Window', '400x400')
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# We add a couple of basic shapes to the image, just to show how
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# to create basic shapes.
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# im.rectangle([startX, StartY], [width, height], color(array of RGB)
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im.rectangle([50, 50], [200, 200], [0, 255, 0], 2)
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# im.ellipse(centerX, centerY, width, height, color(array of RGB)
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im.ellipse(150, 150, 50, 50, [255, 255, 0], 2)
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# We then tell the image to show the image we loaded.
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namedWindow.show(im)
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console.log("Image should be displayed inside a window.")
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# Finally we tell the NamedWindow to wait for any key being pressed to close
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# itself (by passing a 0 as the first param, or wait a defined amount of time
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# by passing the time as a second argument (in milliseconds)
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#
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# If we do not tell the window to wait it will just load and show the image
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# and close so fast that it will appear nothing happened.
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namedWindow.blockingWaitKey(0, 5000)
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console.log("And the window should close automatically or by pressing any key on it.")
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)
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