How to extract an image from an other using kineticjs?

@larissa 

To extract an image from another image using KineticJS, you can use the crop function. Here's an example of how you can extract an image from another image using KineticJS:

1. First, create a stage and layer:

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var stage = new Kinetic.Stage({
  container: 'container',
  width: 500,
  height: 500
});

var layer = new Kinetic.Layer();
stage.add(layer);

1. Next, create the original image:

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var originalImage = new Kinetic.Image({
  x: 0,
  y: 0,
  image: image,
  width: 200,
  height: 200
});
layer.add(originalImage);

1. Finally, use the crop function to extract an image from the original image:

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var extractedImage = new Kinetic.Image({
  x: 250,
  y: 0,
  image: originalImage.getImage(),
  width: 100,
  height: 100,
  crop: {
    x: 50,
    y: 50,
    width: 100,
    height: 100
  }
});
layer.add(extractedImage);

layer.draw();

In this example, we create an original image and then extract a 100x100 pixel image from it starting from the position (50, 50). The extracted image is then added to the layer and drawn on the stage.

Note: Make sure to replace 'container' with the id of the HTML element you want to append the stage to and 'image' with the URL of the original image.