MMDT1021 Chapter 5 Notes - page 3
File name: landcompress1.jpg File size: 97K The image with the lowest compression of 1. |
File name: landprogressive.jpg File size: 92K If you had a slow connection, you would notice that at first the image would be blocky and unclear. As the image keeps loading, the image will become clearer. |
File name: landcompress15.jpg File size: 29K The image with a compression of 15. Notice that the file size has been significantly reduced and the image quality is still very good. |
File name: landcompress30.jpg File size: 19K The image with a compression of 30. Notice that the file size has been reduced further and the image quality is still very good. |
File name: landcompress60.jpg File size: 11K The image with a compression of 60. Notice that the file size has been reduced further. However the image is starting to loose detail and artifacts are appearing in some areas. |
File name: landcompress90.jpg File size: 4K The image with a compression of 90. Although the file size is very small, the image quality is very poor. |
File name: landgif.gif File size: 70K This example shows what happens if the GIF format is used instead of the JPEG format on a photographic quality image. Notice how the blue hues in the sky look blotchy. This is due to the 256 color limitation with a GIF. The GIF format is not recommended photographic quality images. |