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This is just a short show to catch up on my missed show on Tuesday. I’ll look a tiny bit behind the math in the convolution matrix with a spreadsheet model of a single row of pixels.
And I’ll show you an often overlooked feature of GIMP – the screenshot. It’s way more flexible than just pressing “PrntScrn”. It even stores the mouse pointer on a different layer.
The companion file contains also the images for the next show. I was too lazy to un- and repack that again. 
The TOC
00:19 Welcome
00:33 Greetings to Norman
01:10 Understanding the Convolution Matrix
03:48 – Sharpening
05:18 – Blurring
06:43 The Forum
08:16 Screen shots using Gimp
13:03 the End
TOC made by paynekj
This work is licensed under a
Creative Commons Attribution-Share Alike 2.0 Germany License.
