Convolutions in image processing | Week 1 | MIT Fall 2020 | Grant Sanderson
The basics of convolutions in the context of image processing.
Course website:
Contents:
0:00 - Introduction
1:12 - Box blur as an average
3:00 - Dealing with the edges
4:31 - Gaussian blur
5:30 - Visualizing gaussian blur
6:04 - Convolution
6:40 - Kernels and the gaussian kernel
7:26 - Looking at the convolution in Julia
8:45 - Julia: `ImageFiltering` package and Kernels
9:08 - Julia: `OffsetArray` with different indices
10:15 - Visualizing a kernel
11:25 - Computational complexity
12:00 - Julia: `prod` function for a product
13:00 - Example of a non-blurring kernel
16:00 - Sharpening edges in an image
17:13 - Edge detection with Sobel filters
21:25 - Relation to polynomial multiplication
25:00 - Convolution in polynomial multiplication
26:08 - Relation to Fourier transforms
28:50 - Fourier transform of an image
31:50 - Convolution via Fourier transform is faster
34:00 - Final thoughts
To learn more about Julia, head to
1 view
1351
505
2 months ago 00:00:57 52
Plugin Trailer | Airspace - A Hybrid Reverb & Delay VST & AU Plugin
2 months ago 01:35:09 1
Satan is Not Who You Think | Billy Carson & 4Biddenknowledge
2 months ago 00:14:46 1
Silent Hill 2 Review
3 months ago 00:32:56 1
102 Dalmatians: Puppies to the Rescue (PS1) [Part 6] - Countryside and Barnyard
3 months ago 00:35:49 1
Banned Recording Reveals Everything Happening Today (The Deep State)
3 months ago 00:03:56 20
Chris Hein Winds Vol.5 Deep Flutes - Overview | Best Service
3 months ago 00:04:02 1
Philippe Jaroussky records Gluck: Che farò senza Euridice (Orfeo ed Euridice)
3 months ago 00:11:56 16
8Dio Misfit Toy Instruments
3 months ago 00:12:22 13
8Dio Misfit Toy Synths N’ Drums
3 months ago 00:21:56 19
8Dio Misfit Toys N’ Baby
4 months ago 00:03:48 1
El Nulevoe – Red Tape Affairs
4 months ago 00:00:54 51
UCHRONIA Teaser
4 months ago 00:00:53 34
UCHRONIA Teaser #2
4 months ago 00:00:16 1
Automatic Convolute Paper Tube Machine
4 months ago 00:19:22 1
Trying to run Windows apps on Linux with Wine: Office, Photoshop, Affinity Designer, Autocad
4 months ago 00:03:58 1
DISKORD (Norway) - Pass the Baton (Technical/Progressive Death Metal) Transcending Obscurity Records
4 months ago 00:01:44 1
[Top 1 Platformer] CONVOLUTION Verified
4 months ago 00:17:55 1
Alan Watts Opens Up About Religion (thought provoking video)
4 months ago 01:07:18 1
Luo: Unspoken + Convoluted Mess Machine - Full Live Show
4 months ago 01:17:07 1
Béjart Ballet Lausanne: Light
4 months ago 00:06:30 1
Artie Shaw - In the Mood
4 months ago 00:13:03 1
Porsche Panamera (2024) - Sound, interior Exterior and Drive!