libretech 67189df88c 223015b phase 3: summary-kap02 demo (kap2 folie 22 zusammenfassung). zwei spalten: verlustfrei grün (redundanz raus, umkehrbar, RLE/Huffman/Deflate, ZIP/PNG/FLAC/RAW, faktor 2x-5x) vs verlustbehaftet rot (irrelevanz raus, nicht umkehrbar, psychoakustik/psychovisualität, MP3/AAC/JPEG/H.264, faktor 10x-100x) mit key-value rows pro spalte (was passiert, umkehrbar, verfahren/trick, formate, faktor). drunter entscheidungsmatrix mit 6 szenarien mapped zu lossless/lossy (foto-archiv RAW lossless, spotify lossy, code-repo zip lossless, instagram jpeg lossy, studio-master flac lossless, youtube h.264 lossy). verdict 'lossless für archiv und code, lossy für streaming und anzeige. faustregel: werkzeug → lossless, konsum → lossy'

2026-05-14 11:43:43 +02:00

..

demos

223015b phase 3: summary-kap02 demo (kap2 folie 22 zusammenfassung). zwei spalten: verlustfrei grün (redundanz raus, umkehrbar, RLE/Huffman/Deflate, ZIP/PNG/FLAC/RAW, faktor 2x-5x) vs verlustbehaftet rot (irrelevanz raus, nicht umkehrbar, psychoakustik/psychovisualität, MP3/AAC/JPEG/H.264, faktor 10x-100x) mit key-value rows pro spalte (was passiert, umkehrbar, verfahren/trick, formate, faktor). drunter entscheidungsmatrix mit 6 szenarien mapped zu lossless/lossy (foto-archiv RAW lossless, spotify lossy, code-repo zip lossless, instagram jpeg lossy, studio-master flac lossless, youtube h.264 lossy). verdict 'lossless für archiv und code, lossy für streaming und anzeige. faustregel: werkzeug → lossless, konsum → lossy'

2026-05-14 11:43:43 +02:00

qr

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8bit-P-character.png

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2011-hilbert.png

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addaptive-substractive-colors.jpg

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artemis.jpg

update 223015b chapter 1: add images, artemis slide, fix hex table

2026-04-10 01:10:26 +02:00

ascii-table-colored.png

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ascii-table.png

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Asterisk_with_jpg-artefacts.png

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audio-spectrogram.png

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av1-grammy-crop.png

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av1-grammy.png

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av1-logo.png

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AV1.png

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Barn-yuv.png

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bittorrent.png

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cassette-ipod.png

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Common_chroma_subsampling_ratios_YCbCr_CORRECTED.svg.png

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compact-disc-cd.jpg

update 223015b chapter 1: add images, artemis slide, fix hex table

2026-04-10 01:10:26 +02:00

compression-types.png

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container-codec-diagram.png

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digital-landscape.png

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druckwelle.png

update 223015b chapter 1: new assets, slide edits, asset cleanup

2026-04-16 22:18:15 +02:00

dvd.jpg

update 223015b chapter 1: add images, artemis slide, fix hex table

2026-04-10 01:10:26 +02:00

Felis_silvestris_silvestris_small_gradual_decrease_of_quality_-_JPEG_compression.jpg

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gif-animation.png

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grayscale-gradient.png

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grayscale-gradient.svg

add grayscale gradient svg and zoom slide

2026-04-17 12:37:09 +02:00

grayscale-zoom.svg

add grayscale gradient svg and zoom slide

2026-04-17 12:37:09 +02:00

growth-of-big-data.png

fix growth-of-big-data image: rename to remove spaces, hide footer

2026-04-10 01:29:16 +02:00

hex-binary-table.png

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hex-code-hidden.png

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hex-code.png

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hex-dec-lookup-table.png

update 223015b chapter 1: add images, artemis slide, fix hex table

2026-04-10 01:10:26 +02:00

hexeditor-screenshot.png

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hollerith-machine-2.jpg

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iframe-pframe-diagram.png

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IMG_3617.jpg

update 223015b chapter 1: add images, artemis slide, fix hex table

2026-04-10 01:10:26 +02:00

instagram-quality-loss.png

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ipb-compression-canon.jpg

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jpeg-artifacts.png

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jung-naiv.png

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karlheinz-brandenburg.jpg

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klausur-pattern.svg

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kubrick.jpg

update 223015b chapter 1: new assets, slide edits, asset cleanup

2026-04-16 22:18:15 +02:00

lightbulb-onoff.png

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lv-original-vs-fake.jpg

223015b 01-grundlagen: encoding+hex strukturiert — encoding-strang (problem→ASCII→unicode→byte zählen) und darstellungs-strang (WTF!?→8-bit→hex→demos) getrennt statt verschachtelt, 3 brücken-folien (ASCII reicht für englisch / byte für byte als advance organizer / hex ist überall), byte-für-byte demo (3 fenster bin/hex/text mit binärdatei-vs-textdatei-marker), lv-original-vs-fake bild ersetzt leere folie zwischen lossless-titles, 'besser erkennen' → 'besser erkennbar', singular Byte plural in eigener brücke korrigiert

2026-05-13 22:53:45 +02:00

matrix-code.png

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moores-law.png

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morpheus.jpg

update 223015b chapter 1: new assets, slide edits, asset cleanup

2026-04-16 22:18:15 +02:00

napster-2001.png

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napster-interface.png

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netflix-4k.png

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original-ascii-table.png

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photo-comparison.png

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Posterization_example.jpg

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qrcode-0.svg

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qrcode-1.svg

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quantized-image-8-colors.jpg

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radek-grzybowski-eBRTYyjwpRY-unsplash.jpg

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rgb-color-model-with-title.png

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rgb-color-model.png

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samplerate.webp

update 223015b chapter 1: new assets, slide edits, asset cleanup

2026-04-16 22:18:15 +02:00

spectogram-chet-baker.png

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streaming-quality-switch.png

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suzanne-vega.jpg

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ybcbr.webp

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youtube-vp9.png

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