Digital Imaging
Image Types
What is a Vector image?
Vector images are made up of lines, curves and shapes. Vector images do not lose their quality when they are made bigger.
What is a Vector image?
Vector images are made up of lines, curves and shapes. Vector images do not lose their quality when they are made bigger.
Vector image
What is a Bitmap image?
Bitmap images are stored as tiny dots called pixels. Unlike vector images, bitmaps lose their quality when they are made bigger.
Bitmap images are stored as tiny dots called pixels. Unlike vector images, bitmaps lose their quality when they are made bigger.
Bitmap image
Bitmaps are best for images that require lots of colour, e.g., photos.
Vector images are best for making detailed diagrams and logos.
Vector images are best for making detailed diagrams and logos.
Image Compression
BMP images are very large in size (this means that they take up more room on your computer). It is possible to reduce the size of these large files using a process called compression. There are two types of compressions:
What is Lossless compression?
Lossless compression reduces a file's size with no loss of quality.
What is Lossy compression?
BMP images are very large in size (this means that they take up more room on your computer). It is possible to reduce the size of these large files using a process called compression. There are two types of compressions:
What is Lossless compression?
Lossless compression reduces a file's size with no loss of quality.
What is Lossy compression?
Lossy compression reduces a file’s size by removing some of the data. The downside of this is that it also reduces the quality of the image.
File formats
Image files types come in different formats:
Image files types come in different formats:
File formats
* GIFS can also be turned into animated pictures.
Gif Animation
