Manipulating image data with methods such as getImageData and putImageData Mocktest

The range of values for each color channel in pixel data is 0 to 255.

The setPixel() method is not a built-in method; pixel manipulation is typically done directly on the pixel data array.

The alpha channel in pixel data is used to represent transparency levels.

The globalAlpha() method sets the transparency level for drawing on the canvas, affecting color blending.

If the dimensions do not match, an error occurs when trying to put the image data onto the canvas.

Manipulating pixel data can often reduce performance due to the processing required.

getImageData and putImageData are commonly used in image editing applications to apply filters, effects, and manipulate image data.