on the following slides some examples from various digital library pages are shown these examples...
TRANSCRIPT
On the following slides some examples from various digital library pages are shown
These examples show that the traditional compression techniques are not suitable for the presentation of scanned documents on WWW
Advanced Techniques in Processing ImagesAdvanced Techniques in Processing ImagesChapter Chapter 66. . Slide Slide 66
The JPEG compression
technique has been used. The
artifacts are clearly seen
when the image is magnified
Advanced Techniques in Processing ImagesAdvanced Techniques in Processing ImagesChapter Chapter 66. . Slide Slide 77
Advanced Techniques in Processing ImagesAdvanced Techniques in Processing ImagesChapter Chapter 66. . Slide 8Slide 8
Advanced Techniques in Processing ImagesAdvanced Techniques in Processing ImagesChapter Chapter 66. . Slide Slide 99
•
• Here the quality of the presentation is much better, at the
expense of the large amount of data
stored in the JPEG file. However the
blocking artifacts are clearly seen.
Advanced Techniques in Processing ImagesAdvanced Techniques in Processing ImagesChapter Chapter 66. . Slide Slide 1010
Advanced Techniques in Processing ImagesAdvanced Techniques in Processing ImagesChapter Chapter 66. . Slide Slide 1111
Advanced Techniques in Processing ImagesAdvanced Techniques in Processing ImagesChapter Chapter 66. . Slide 1Slide 122
Here GIF format was used . In
order to decrease the file size, low resolution was chosen. This
results in a very poor quality of
the presentation.
Advanced Techniques in Processing ImagesAdvanced Techniques in Processing ImagesChapter Chapter 66. . Slide 13Slide 13
Advanced Techniques in Processing ImagesAdvanced Techniques in Processing ImagesChapter Chapter 66. . Slide Slide 1414
Advanced Techniques in Processing ImagesAdvanced Techniques in Processing ImagesChapter Chapter 66. . Slide Slide 1515
Advanced Techniques in Processing ImagesAdvanced Techniques in Processing ImagesChapter Chapter 66. . Slide 16Slide 16
TEST IMAGE USED FOR THE COMPARISONS OF THE EFFICIENCY OF DIFFERENT FORMATS ( SIZE 25 MB )
Advanced Techniques in Processing ImagesAdvanced Techniques in Processing ImagesChapter Chapter 66. . Slide Slide 1717
TEST IMAGE COMPRESSED USING JPEG ( SIZE 200 KB).
Advanced Techniques in Processing ImagesAdvanced Techniques in Processing ImagesChapter Chapter 66. . Slide Slide 1818
Advanced Techniques in Processing ImagesAdvanced Techniques in Processing ImagesChapter Chapter 66. . Slide Slide 1919