Using Math to Compress Images! DCT in JPEG
JPEG Compression is extremely amazing at reducing image sizes! But how does it work? Join me in this 4 video series, where we explore every single algorithm that makes JPEG GREAT! In the final video, we encode and decode a COMPLETE example!
In this video we see how JPEG makes use of the Discrete Cosine Transform and changes the way we think about images!
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Playlist Link - • JPEG Compression
01 - YCbCr & Chroma Subsampling
02 - Discrete Cosine Transform & Quantization
03 - Run Length Encoding & Huffman Encoding
04 - JPEG Overview
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Chapters :
0:00 Motivation
1:25 DCT Introduction
1:45 Pixel Neighbours
2:18 YCbCr & DCT
3:00 High & Low Frequency
4:06 Recap - YCbCr & CSS
4:27 Minimum Coded Units (MCUs)
5:09 Initial Example
6:10 Inverse DCT
7:07 Frequency Patterns
8:03 Quantization
9:24 Quality Correlation
9:40 Example #2
10:21 Outro
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Channel - / @askushow
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#jpeg #dct #compression #jpg #png #image #images #huffman #encoding #decoding #quantization #digital #discrete #maths #cosine #transform #ycbcr
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