1. Images are either vectors or bitmaps. Bitmap images are made out of small parts called pixels.
2. Vector images are made using ______________________
3. Bitmap graphics can be scaled without losing resolution. They can be enlarged or reduced in size - but the file size will stay almost exactly the same.
4. One of the most common vector file formats is scalable vector graphics (____). ____is an open standard for vector graphics.
5. When a monitor or a printer displays a vector image it is rasterised -that is _____
6. Bitmap images are essentially comprised of small parts called _________
7. The colour depth of an image is measured in bits. The number of bits indicates ____________
8. In a black and white image, only two colours are needed. This means it has a colour depth of___________
9. A 2-bit colour depth would allow ___________________________
10. The ____________the colour depth (bits per pixel), the more colours are available.
11. _________________is a measure of pixel density, usually measured in dots per inch (dpi)
12. When might one want to decrease the colour depth for an image
13. How many bits would an image be that has a size of 20 by 30 pixels, with each pixel able to display 8 colours?
14. How many bits does the colour depth have to be if we want to store 64 colours per pixel?
15. How many colours can each pixel store if it has a colour depth of 4bits?
16. The smallest possible addressable area defined by a solid colour, represented as binary, in an image is a _____________
17. Image files usually also contain metadata. Metadata means 'data about data' and provides information about the image. The information includes
18. Vectors are more efficient than bitmaps at storing large areas of the same colour because they do not need to store every pixel as a bitmap does
19. It is possible to edit SVG images using ______________ to change the size and colour variables in HTML. This is often used for graphs and infographics in HTML5
20. Vector graphics are used in:
21. Image resolution is calculated using the:
22. Display resolution is the number of dots per inch (DPI). More dots per inch give a _________________
23. A pixel can be thought of as the smallest element of a digital image.
24. Colour depth is the number of bits used for each pixel where 1 bit is black and white and 8 bits will give _______________
25. Vector graphics can be rescaled and resized with no loss of quality. Simple shapes that can be copied to create more complex shapes.