Vector and Bitmap Images

Bitmap Images

• They are created by graphics packages
• Also consists of shapes called objects
• If the objects are large it doesn't take up a lot of computer memory
• Therefore the file size of a vector graphic is often very small
• When you re-size the images they do not lose quality  

Vector Images

• They're made up of different colored pixals
• Taking a picture with a different camera is creating a bitmap
• It is possible to edit each individual pixal
• The computer has to store every pixal
• Therefore the file size is quite big

The difference

• Vector images loses quality when you re-size them
• A bitmap image stays the same
• A vector image is big due to the computer storing every pixal
• A bitmap image file size is quite small
• Vector images are made up of pixals 

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• A bitmap image is made up of objects
• Vector images look real
• Were as bitmap images look like cartoons
• .bmp is used for bitmap images
• .svg is used for vector images

Q&A

How are these images stored?

Vector images are stored using .svg and bitmap images are stored using .bmp.

Which image loses quality

The vector images lose quality when increased to to all the pixels.

What is the relationship between the number of colours an image can display,resolution and file size?

Both images can display any colours but their file sizes are different because one doesn't need to store that much.

When is a bitmap a suitable format to use?

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When is a vector a suitable format to use?

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