Dithered QR Codes
Making your own dithered QR codes Make your own The rest of my website Source code QR codes: the basics A QR code is really just a way of encoding a few bytes of data in a way that can be easily read froma photo by a smartphone or similar device. They're designed to be very robust to bad focus, bad printing, funny angles, and missing areas. Exactly how they work isn't terribly important, but for the purposes of this page, a QR code is a grid of squares that divide into two parts — the function patterns (which are the bold shapes in the above example) and the data modules (everything else).
- ▪Making your own dithered QR codes Make your own The rest of my website Source code QR codes: the basics A QR code is really just a way of encoding a few bytes of data in a way that can be easily read froma photo by a smartphone or similar d
- ▪They're designed to be very robust to bad focus, bad printing, funny angles, and missing areas.
- ▪Exactly how they work isn't terribly important, but for the purposes of this page, a QR code is a grid of squares that divide into two parts — the function patterns (which are the bold shapes in the above example) and the data modules (ever
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Story provenance
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Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | Andrewt |
| Canonical URL | https://www.andrewt.net/dithered-qr-codes/wtf/ |
| Publication time | Sat, 08 Aug 2026 23:05:24 +0000 |
| Retrieval time | 2026-08-09T01:05:42.093Z |
| Last seen | 2026-08-09T01:05:42.093Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | None |
| Cluster logic | Not yet clustered, or no peer story found in the clustering window. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Making your own dithered QR codes Make your own The rest of my website Source code QR codes: the basics A QR code is really just a way of encoding a few bytes of data in a way that can be easily read froma photo by a smartphone or similar device. They're designed to be very robust to bad focus, bad printing, funny angles, and missing areas. Exactly how they work isn't terribly important, but for the purposes of this page, a QR code is a grid of squares that divide into two parts — the function patterns (which are the bold shapes in the above example) and the data modules (everything else). The function modules are mostly used to let the scanner find the QR code easily, so they have to be very clear and distinct.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Andrewt.
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