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HTML5 Canvas Images


To Draw Images on the canvas with various types of variation.


☸ Images can be drawn on the canvas with method drawImage()

☸ The drawImage() method can take three(3), five(5) or nine(9) arguments depending way the image is to be displayed.


Embed Image: drawImage(imageElement, X, Y)

1.Images can be embedded on the canvas using canvas method of drawImage(imageElement, X, Y).

2.This method draws the image on the canvas with its native height and width.

imageElement :Denotes image source, which can be a DOM object representing image, video or other canvas elements.

(X, Y) :Denotes the co-ordinates of the canvas where the image should be drawn.

Example:Embed Image with Original width and Height.

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Images with Width and Height.

1.Draw images with specific height and width with method drawImage(imageElement, X, Y, Width, Height)

2.Here,imageElement :Denotes image source, which can be a DOM object representing image, video or other canvas elements.

(X, Y) :Denotes the co-ordinates of the canvas where the image should be drawn.

(Width, Height) :Specifies the Dimensions of the Image.

Example:Images with Width and Height.

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Images with Region Mapping or Cropped Images.

HTML5 canvas Image region Mapping or Clip and Crop Operation

Display a specific region of an Image with drawImage(imageElement, sx, sy, sWide, sHi, dx, dy, dWide, dHi).

1.This method displays only the specific region or cut on Image,scaled such that it fits the specified display dimensions.

Here, source denotes the canvas state after imageDraw() method is applied and Destination denotes before state.

imageElement: Denotes image source which is a DOM object representing the image.

(sx, sy): Denotes the starting co-ordinates of source Image.

(sWide, sHi): Denotes the width and height of the source Image.

(dx, dy): Denotes the starting co-ordinates of the Destination Image.

(dWide, dHi): Denotes the width and height of Destination Image.

Example:Region Mapping or Cropped Image.

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