File formats
- 2. .Jpg • Joint Photograph Expert Group is a raster file meaning that it uses pixel data. Some advantages of using .Jpg are that it is widely supported for digital photography and the internet. it’s also the most used out of all the file formats. The variable compression allows you to change the file size. So this will allow you to change the quality for example, when sending an example of your work for someone to look over you don’t need as good quality as when your printing off your work. Disadvantages of using .Jpg is not suitable for simpler pictures that contain few colours, broad areas of the same or similar colours or stark differences in brightness. Also when compressing a file it losses quailty.
- 3. .Bmp • Windows Bitmap . This file format uses raster graphics which means this format also uses pixels. The advantages when using bitmap supports a wide range of colours which means you will keep most of the colours in the photo and they will not blend in with others. Also windows bitmap is compatible with a wide range of existing windows programmes. The Disadvantages when it comes to using .Bmp file format, is it dose not support variable compression this makes it a big file so it is nearly impossible to email. Windows Bitmap does not support web browsers so it can only be used by windows, an example of where this file format could be used is in office jobs using windows programmes.
- 4. .Png • Portable Network Graphics uses raster graphics this means it uses pixels in the file format. advantages of using this file format is that it is a platform independent format this is an advantage as it means you are able to use this file format in many platform and your not tied down to one type of platform. using this file format is that it can be opened by itself also supports high-level lossless compression, lossless compression is where you are able to make the file size smaller without the loss of quality this is an advantage as if you are working for a media company and you need to send a picture to someone because of the the file size you may have to decrease the file size, however the quality of the picture will also decrease so therefore using lossless compression you are able to make large files smaller without decreasing the quality. Disadvantages are when using this file format are, if you have an older browser and older programs then .png may not support them and another disadvantage is that as an internet file format, also it offers no support for multi-image files or animated files.
- 5. .Cgm • Computer Graphics Metafile CGM is a metafile, which means it uses raster and vector data. Advantages of using cgm is that it is a Free file format which works on many systems. Also it is International standard. Some Disadvantages are In some programs, CGM needs a filter to convert it.
- 6. .Gif • Graphics Interchange Format is a file format that uses raster graphics which means they use pixels which are little squares that make up images. Some of the advantages of using this type of file format is that it is supported by a wide internet standard it is easier for more people to access this type of file format. also it uses lossless compression which means that you are able to make large files smaller this it doesn’t ruin the quality. Some of the disadvantages when using this file format are that .gif supports only a 256 colour palette; therefore detailed pictures and photo-realistic images may lose colours and/or formation. Finally the last disadvantage is that lossless compression is limited and inferior to other formats.
- 7. .Pdf • Portable Document Format this format uses both raster and vector graphics this means it uses pixels and mathematical equations. Advantages of using this type of file format is that it is able to be opened on any software. They also have small file sizes which makes them easier to share and once the file has been saved using this file type it cannot be manipulated which means your work will be safe. disadvantages of this file format is that if you check for it to be reviewed by someone they wont be able to help you make improvements. An example is Exam boards would be the most likely to use this file format as you can save big files in a small file size and the work is also protected