What type of object is passed as an argument to putImageData?
A). ImageDataObject
B). CanvasData
C). PixelData
D). ImageData
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
Which method is used to extract pixel data from a canvas?
A). getImageData()
B). drawPixelData()
C). setPixelData()
D). modifyImageData()
Which method is used to manipulate individual pixel values in pixel data?
A). modifyPixel()
B). setPixel()
C). updatePixel()
D). none of the above
What is the purpose of the alpha channel in pixel data?
A). To represent brightness
B). To represent transparency
C). To represent color intensity
D). To represent contrast
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 does the putImageData method do?
A). Extracts pixel data
B). Draws pixel data onto the canvas
C). Modifies pixel data
D). Deletes pixel data
Which method is used to draw pixel data onto the canvas?
A). drawPixelData()
B). putPixelData()
C). displayImageData()
D). putImageData()
Which statement is true about the performance of manipulating pixel data?
A). It has no impact on performance
B). It can improve performance
C). It always reduces performance
D). Performance depends on the browser
Which parameter specifies the rectangular area from which pixel data will be extracted?
A). x-coordinate
B). y-coordinate
C). width
D). height