2023-01-29 21:53:13 +01:00
|
|
|
## Tag 5 - Kompression mit Verlust
|
|
|
|
|
|
2023-03-22 20:42:08 +01:00
|
|
|
[M114_Tag5_Repetition_Praeinstruktion.txt](_M114_Tag5_Repetition_Praeinstruktion.txt)
|
2023-03-23 00:33:38 +01:00
|
|
|
|
|
|
|
|
```
|
|
|
|
|
M114 Repetition und Pränstruktion
|
|
|
|
|
---------------------------------
|
|
|
|
|
|
|
|
|
|
Wieviele Nullen hat ein Tera?
|
|
|
|
|
|
|
|
|
|
Wieviel Bit hat ein Tera Byte?
|
|
|
|
|
|
|
|
|
|
Wieviel Uhr ist es in dezimal?
|
|
|
|
|
0 0 1 0 1 1 Std
|
|
|
|
|
1 1 1 0 0 0 Min
|
|
|
|
|
0 0 0 1 1 0 Sek
|
|
|
|
|
|
|
|
|
|
Wie gehen die Schritte bei der Huffman Komprimierung?
|
|
|
|
|
Was muss man der Reihe nach machen?
|
|
|
|
|
|
|
|
|
|
Installieren Sie sich das gratis Grafik-Programm
|
|
|
|
|
"Irfanview" und speichern Sie die beiden gegebenen
|
|
|
|
|
Bildern einmal im Format ".jpg", ".gif" und in ".png".
|
|
|
|
|
Was fällt auf und was könnte dahinter stecken?
|
|
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
2023-03-22 20:42:08 +01:00
|
|
|
|
2023-03-22 22:19:03 +01:00
|
|
|
### Einleitung
|
|
|
|
|
|
|
|
|
|
Bildformate erklärt | PNG, JPEG, BMP & mehr - Wann welches Format nutzen?
|
|
|
|
|
<br>8:16 min, D, Youtube, 09.08.2022
|
|
|
|
|
<br>https://www.youtube.com/watch?v=FqPUwN_iqPk
|
|
|
|
|
|
|
|
|
|
How are Images Compressed from 46 MB to 4 MB (jpeg)?
|
|
|
|
|
<br>18:46 min, E, Youtube, 23.12.2021
|
|
|
|
|
<br>https://www.youtube.com/watch?v=Kv1Hiv3ox8I
|
|
|
|
|
|
2023-03-22 20:47:57 +01:00
|
|
|
|
2023-03-22 20:42:08 +01:00
|
|
|
|
|
|
|
|
|
2023-01-29 21:53:13 +01:00
|
|
|
|
2023-03-22 20:47:57 +01:00
|
|
|
[DCTDemo.ppt](DCTDemo.ppt)
|
2023-01-29 21:53:13 +01:00
|
|
|
|
2023-03-22 20:48:23 +01:00
|
|
|
[DCTDemo.zip](DCTDemo.zip)
|
2023-01-29 21:53:13 +01:00
|
|
|
|
|
|
|
|
|
2023-03-22 20:42:08 +01:00
|
|
|
### M114 - Interlace
|
2023-01-29 21:53:13 +01:00
|
|
|
|
|
|
|
|
Was bedeutet "interlaced" in Grafiken?
|
2023-03-22 20:42:08 +01:00
|
|
|
|
2023-03-22 22:19:03 +01:00
|
|
|
https://de.wikipedia.org/wiki/Interlacing_(Grafiken)
|
2023-01-29 21:53:13 +01:00
|
|
|
|
2023-03-22 20:42:08 +01:00
|
|
|
Frage 1:
|
|
|
|
|
```
|
2023-03-22 22:19:03 +01:00
|
|
|
Bei welchen Bildformaten geht/funktioniert interlaced?
|
2023-03-22 20:42:08 +01:00
|
|
|
|
|
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
Frage 2:
|
|
|
|
|
```
|
|
|
|
|
Wo werden/wurden die interlaced-Formate verwendet?
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
### M114 JPG-Bilder
|
|
|
|
|
|
|
|
|
|
M114 - JPG0 - Colourspaces (JPEG Pt0)- Computerphile
|
|
|
|
|
<br>7:30 min, E, YouTube, 10.4.2015
|
2023-03-22 22:19:03 +01:00
|
|
|
<br>https://www.youtube.com/watch?v=LFXN9PiOGtY
|
|
|
|
|
|
2023-01-29 21:53:13 +01:00
|
|
|
M114 - JPG1 - JPEG 'files' & Colour (JPEG Pt1)- Computerphile
|
2023-03-22 20:42:08 +01:00
|
|
|
<br>7:17 min, E, YouTube, 21.4.2019
|
2023-03-22 22:19:03 +01:00
|
|
|
<br>https://www.youtube.com/watch?v=n_uNPbdenRs
|
2023-03-22 20:42:08 +01:00
|
|
|
|
2023-01-29 21:53:13 +01:00
|
|
|
M114 - JPG2 - JPEG DCT, Discrete Cosine Transform (JPEG Pt2)- Computerphile
|
|
|
|
|
<br>15:11 min, E, YouTube, 22.5.2015
|
2023-03-22 22:19:03 +01:00
|
|
|
<br>https://www.youtube.com/watch?v=Q2aEzeMDHMA
|
2023-01-29 21:53:13 +01:00
|
|
|
|
|
|
|
|
M114 - JPG3 - The Problem with JPEG - Computerphile
|
|
|
|
|
<br>5:36 min, E, YouTube, 9.6.2015
|
2023-03-22 22:19:03 +01:00
|
|
|
<br>https://www.youtube.com/watch?v=yBX8GFqt6GA
|
|
|
|
|
|
|
|
|
|
M114 - JPEG - How are Images Compressed from 46 MB to 4 MB
|
|
|
|
|
<br>18:46 min, E, Youtube, 23.12.2021
|
|
|
|
|
<br>https://www.youtube.com/watch?v=Kv1Hiv3ox8I
|
2023-01-29 21:53:13 +01:00
|
|
|
|
|
|
|
|
M114 - JPG4 - Zusammenfassung
|
|
|
|
|
<br>7:30 min, D, YouTube, 23.1.2010
|
2023-03-22 22:19:03 +01:00
|
|
|
<br>https://www.youtube.com/watch?v=GKjycTURXhI
|
2023-01-29 21:53:13 +01:00
|
|
|
|
2023-03-22 20:42:08 +01:00
|
|
|
|
|
|
|
|
### Editoren
|
|
|
|
|
|
2023-01-29 21:53:13 +01:00
|
|
|
M114_Software_IrfanView-BildEditor
|
2023-03-22 22:19:03 +01:00
|
|
|
<br>https://www.irfanview.com/main_what_is_ger.htm
|
2023-01-29 21:53:13 +01:00
|
|
|
|
|
|
|
|
M114_Software_OpenShot-VideoEditor
|
2023-03-22 22:19:03 +01:00
|
|
|
<br>https://www.openshot.org
|
