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What is the purpose of image replacement?

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What is the purpose of image replacement?

(a) To replace an image

(b) To implement special effects

(c) Removal of image rollovers

(d) Implementation of image rollovers

I had been asked this question in a national level competition.

My doubt stems from Scripted Media in portion Graphics and Rendering of JavaScript

1 Answer

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Correct answer is (d) Implementation of image rollovers

Easy explanation: Image replacement is a technique developed to allow designers to use image-based typesetting while meeting accessibility requirements. One common use for image replacement is to implement image rollovers, in which an image changes when the mouse pointer moves over it.

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