How to put pictures in HTML5 Canvas and save them as pictures

This article mainly introduces the method of placing pictures in HTML5 Canvas and saving them as pictures. Especially saving the picture content as pictures is a very practical function. Friends who need it can refer to it

Use JavaScript to copy the image into the canvas

To put the image into the canvas, we use the drawImage method of the canvas element:

 // Converts image to canvas; returns new canvas element

  function convertImageToCanvas(image) {

  var canvas = document.createElement("canvas");

  canvas.width = image.width;

  canvas.height = image.height;

  canvas.getContext("2d").drawImage(image, 0, 0);</p>
<p> return canvas;

  }

0 here, 0 parameter coordinate point on the canvas, the image will be copied to this place.

Use JavaScript to save the canvas into an image format

If your work on the canvas has been completed, you can use the following simple method to convert the canvas data into an image format :

// Converts canvas to an image

  function convertCanvasToImage(canvas) {

  var image = new Image();

  image.src = canvas.toDataURL("image/png");

  return image;

  }

This code can magically convert canvas into PNG format!

These techniques for converting between images and canvases may be much simpler than you think.

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