Explain how different types of graphic images relate to file formats

Authors Avatar by ellouise1997hotmailcom (student)

My website client is not sure about the software they could use to create a logo and the effect it may have on the design. They are also unsure about file sizes and file types. I will be providing them more information concerning these in order to be sure of the best for their development. There are two major categories of graphics, Vector and Bitmap. I will explain the difference between the two such as typical use, file size and scaling.

JPEG is used for Photographs and have a relatively small file sizes

  • 16.7 million different colours
  • Supported by a wide range of software programs        
  • Does not support transparency
  • Does not preserve layers
  • Lossy compression

BMP is also known as Bitmap images can be used for storing raw image data, although it has now been replaced with PNG which offers greater compression and is also lossless.        

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  • Easy to create from existing files
  • Pixel values may be modified individually or as large groups
  • Supported by virtually every device
  • Does not degrade when saved multiple times like JPEG does
  • Very large file size
  • do not scale very well
  • Lacks all the other features of the other formats

GIF images are typically used for line art with limited colours and images with large flat areas of colour. They are also used for images that may need to be animated.        

  • Transparency is supported
  • Good for saving crisp, clean line art
  • Good for saving images ...

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