Which method is used to extract pixel data from a canvas?

Which channel represents the red color in pixel data?

A). Red channel

B). Green channel

C). Blue channel

D). Alpha channel

What is the range of values for each color channel in pixel data?

A). 0 to 255

B). 0 to 100

C). 0 to 1

D). -255 to 255

What is the purpose of using getImageData and putImageData for image editing applications?

A). To create animations

B). To apply filters and effects

C). To add text to images

D). To resize images

Which of the following is NOT a use case for manipulating image data?

A). Image filtering

B). Text rendering

C). Pixel manipulation

D). Image processing

What type of object is passed as an argument to putImageData?

A). ImageDataObject

B). CanvasData

C). PixelData

D). ImageData

Which parameter specifies the rectangular area from which pixel data will be extracted?

A). x-coordinate

B). y-coordinate

C). width

D). height

Which method is used to draw pixel data onto the canvas?

A). drawPixelData()

B). putPixelData()

C). displayImageData()

D). putImageData()

How can you create a grayscale effect using getImageData and putImageData?

A). Set all RGB channels to the same value

B). Invert the colors

C). Convert to black and white

D). Apply a blur effect

What is the purpose of modifying pixel data with getImageData and putImageData?

A). To change canvas size

B). To animate images

C). To manipulate image colors

D). To add text to images

What type of object does getImageData return?

A). PixelData

B). ImageData

C). CanvasData

D). ImageDataObject