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 parameter specifies the rectangular area from which pixel data will be extracted?
A). x-coordinate
B). y-coordinate
C). width
D). height
What type of object does getImageData return?
A). PixelData
B). ImageData
C). CanvasData
D). ImageDataObject
Which method is used to extract pixel data from a canvas?
A). getImageData()
B). drawPixelData()
C). setPixelData()
D). modifyImageData()
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
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 of the following is NOT a use case for manipulating image data?
A). Image filtering
B). Text rendering
C). Pixel manipulation
D). Image processing
Which method is used to blend colors when drawing on the canvas?
A). blendColors()
B). applyBlend()
C). globalAlpha()
D). setAlpha()
What type of object is passed as an argument to putImageData?
A). ImageDataObject
B). CanvasData
C). PixelData
D). ImageData
Which channel represents the red color in pixel data?
A). Red channel
B). Green channel
C). Blue channel
D). Alpha channel