use of rle in compression
3 visualizzazioni (ultimi 30 giorni)
Mostra commenti meno recenti
is use of rle is responsible for compressing the image ???
0 Commenti
Risposte (3)
Jan
il 21 Set 2014
It depends on the compression, of course. RLE is applied in JPEG compression and as the name says already in images stored in the .rle format, as e.g. the startup screen of Windows (see Wiki: RLE).
It would be an efficient idea to ask your favorite internet search engine about "image rle" to find out more details by your own.
0 Commenti
Hassan
il 21 Set 2014
of course just think about the pixel's value as a character or number
0 Commenti
Said BOUREZG
il 28 Feb 2015
Yes, it's responsible but not all time. for example here: X= 200 200 200 200 200 200 8 11 11 11 11 11 Y=rle(X) >> Y=200 6 8 1 11 5 Here CR= length(X)/length(Y) >>CR=2 %here we have a compression with compression ratio equal 2. but if we try to compress Y with rle we will have: F=rle(Y) >> F=200 1 6 1 8 1 1 1 11 1 5 1 So we will obtain CR=0.5 here we don't have a compression.
0 Commenti
Vedere anche
Categorie
Scopri di più su Denoising and Compression in Help Center e File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!