A-level Computing/AQA/Problem Solving, Programming, Data Representation and Practical Exercise/Fundamentals of Data Representation/Comparison between vector and bitmaps
- Vector images scale without file size increase / decrease
- Bitmap images scale resulting in file size increase / decrease
- Vector images scale without distortion to the image
- Bitmap images distort (pixellate) when scaling
- Bitmaps are better for photo editing
- Bitmaps require less processing power to display
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Exercise: Vector vs Bitmap You wish to create an image that will be made into a giant banner for the side of a building. What type should you use and why? Answer: Vector, as it allows for scaling without distortion and retaining its file size You wish to create an image that will be used in a game, that will run on a mobile phone and a home console. What type should you use and why? Answer: Vector, as it allows for scaling without distortion and retaining its file size. You would only need one image to use on all the different systems. You want to take an image of a local cat stuck in a tree. What type should you use and why? Answer: Bitmap as it is better for photographs. |