Image Compression and Word Frequency Analysis
Explore the concepts of image compression and word frequency analysis, comparing file sizes, ratios, and common word occurrences. Understand the differences and relationships between compressed files and commonly used words in the English language.
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Presentation Transcript
Cywasgu colledus 25 kB 500 kB Beth yw r gwahaniaeth rhwng y ddwy ddelwedd hyn?
Cywasgu digolled The word the, is the most frequently used word in the English language. = 71 nod (beit) @ word @, is @ most frequently used word in @ English language. 63 nod (beit) Beth yw r gwahaniaeth rhwng brawddeg 1 a brawddeg 2?
Cymhareb gywasgu ????? ? ????? ????????? ????? ? ????? ???? ? ? ?????? ??? ???? ??????? =
Cywasgu colledus - cymareb gywasgu 500 kB 25 kB Ffeil wwreiddiol = 500 kB Ffeil wedi ei chywasgu = 25 kB 500/25 = 20 Cymhareb gywasgu = 20:1
Cywasgu digolled cymhareb cywasgu The word the, is the most frequently used word in the English language. = 71 nod (beit) @ word @, is @ most frequently used word in @ English language. =63 nod (beit) Nid oes factor cyffredin rhwng 71 ac 63 felly mae r gymhareb yn ei ffurf symlaf.
Cymhareb cywasgu Ffeil wreiddiol = 3000 kB Ffeil gywasgu = 400 kB 3000/100=30 400/100=4 30:4 30/2 =15 4/2=2 15:2
Cymhareb gywasgu Ffeil wreiddiol = 9000 kB Cymhareb gywasgu = 10:1 9000/10= 900 Ffeil gywasgu = 900 kB
