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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"><head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><title>MMDT1021 Chapter 5 Notes - page 3</title> <link href="chapter5p3_files/style.css" rel="stylesheet" type="text/css"></head><body> <p class="pagetitle" align="center">MMDT1021 Chapter 5 Notes - page 3</p> <h3 align="center">JPEG graphic images.</h3> <table align="center" border="1" cellpadding="4" width="750"> <tbody><tr> <td valign="top" width="50%"><img src="chapter5p3_files/landcompress1.jpg" alt="photo" border="0" height="440" width="353"><br> File name: landcompress1.jpg<br> File size: 97K <p>The image with the lowest compression of 1.</p></td> <td valign="top" width="50%"><img src="chapter5p3_files/landprogressive.jpg" alt="photo" border="0" height="440" width="353"><br> File name: landprogressive.jpg<br> File size: 92K <p>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.</p></td> </tr> <tr> <td valign="top" width="50%"><img src="chapter5p3_files/landcompress15.jpg" alt="photo" border="0" height="440" width="353"><br> File name: landcompress15.jpg<br> File size: 29K <p>The image with a compression of 15. Notice that the file size has been significantly reduced and the image quality is still very good.</p></td> <td valign="top" width="50%"><img src="chapter5p3_files/landcompress30.jpg" alt="photo" border="0" height="440" width="353"><br> File name: landcompress30.jpg<br> File size: 19K <p>The image with a compression of 30. Notice that the file size has been reduced further and the image quality is still very good.</p> </td> </tr> <tr> <td valign="top" width="50%"><img src="chapter5p3_files/landcompress60.jpg" alt="photo" border="0" height="440" width="353"><br> File name: landcompress60.jpg<br> File size: 11K <p>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.</p></td> <td valign="top" width="50%"><img src="chapter5p3_files/landcompress90.jpg" alt="photo" border="0" height="440" width="353"><br> File name: landcompress90.jpg<br> File size: 4K <p>The image with a compression of 90. Although the file size is very small, the image quality is very poor.</p></td> </tr> <tr> <td valign="top" width="50%"><img src="chapter5p3_files/landgif.gif" alt="photo" border="0" height="440" width="353"><br> File name: landgif.gif<br> File size: 70K <p>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. </p></td> <td valign="top" width="50%"> </td> </tr> </tbody></table> </body></html>