Q
How do you scale an image using drawImage?

Answer & Solution

Answer: Option A
Solution:
To scale an image, use drawImage(img, 0, 0, img.width / 2, img.height / 2) to scale to half the original size.
Related Questions on Average

What does the height attribute of an image element specify in HTML?

A). Height of the image

B). Source of the image

C). Type of the image

D). Width of the image

How do you display an image with dimensions 200x150 pixels on the canvas using drawImage?

A). drawImage(img, 0, 0, 200, 150)

B). drawImage(img, 0, 0, img.width, img.height)

C). drawImage(img, 0, 0, img.width / 2, img.height / 2)

D). drawImage(img, 100, 100, 200, 150)

What does the onload event ensure before drawing an image on the canvas?

A). The canvas is ready

B). The image is fully loaded

C). The browser is open

D). The canvas size is set

Which method is used to load an image in HTML5 canvas?

A). loadImage()

B). createImage()

C). Image()

D). new Image()

Which parameter of the drawImage method specifies the width of the image to be drawn on the canvas?

A). img.width

B). width

C). img.width / 2

D). width / 2

What does the src attribute of an image element specify in HTML?

A). Source of the image

B). Size of the image

C). Type of the image

D). Width of the image

How do you draw an image at coordinates (100, 100) on the canvas using drawImage?

A). drawImage(img, 100, 100)

B). drawImage(img, 0, 0, 100, 100)

C). drawImage(img, 0, 0, img.width, img.height)

D). drawImage(img, img.width, img.height)

Which parameter of the drawImage method specifies the height of the image to be drawn on the canvas?

A). img.height

B). height

C). img.height / 2

D). height / 2

What is the purpose of the src attribute in an image element in HTML?

A). Specifies the source of the image

B). Specifies the size of the image

C). Specifies the type of the image

D). Specifies the width of the image

How do you draw a cropped portion of an image using drawImage?

A). drawImage(img, 50, 50, 100, 100, 0, 0, 100, 100)

B). drawImage(img, 0, 0, 100, 100)

C). drawImage(img, 0, 0, img.width, img.height)

D). drawImage(img, 100, 100)