Borbin the 🐱

Understanding Adobe RGB: When a Filename Starts with an Underscore

Color management is a subtle but critical aspect of digital imaging. One often overlooked detail is how some cameras signal the use of wide-gamut color profiles like Adobe RGB using the filename itself. When a filename starts with an underscore _, it indicates that the image was captured using the Adobe RGB color space. This is a filename-based convention and not embedded in the image metadata.

Visual Comparison

Below is a comparison of the same image displayed with and without Adobe RGB interpretation. Notice the richer greens and cyans on the left.

D700 1/250s f/8 ISO 200/24° 8mm f/3,5G

Using Adobe RGB

Without Adobe RGB (as sRGB)

Why Adobe RGB?

Adobe RGB is a color space developed by Adobe Systems in 1998 to encompass most of the colors achievable on CMYK printers. Compared to the standard sRGB, Adobe RGB offers a wider gamut, especially in the green and cyan regions. This makes it ideal for professional printing and high-end image editing workflows.

The CIE 1931 xy Chromaticity Diagram

It shows color hue and saturation (not brightness).

• x-axis: how much red vs green is in the color.
• y-axis: how much green vs blue is in the color.

It comes from the CIE XYZ color system, where Y relates to brightness.
Like a map of all visible colors:

• The curved edge is pure spectral colors (rainbow).
• Inside the shape are all mixtures of colors.
• White (D65) is near the center.

See github

sRGB: R(0.6400, 0.3300), G(0.3000, 0.6000), B(0.1500, 0.0600)
Adobe RGB: R(0.6400, 0.3300), G(0.2100, 0.7100), B(0.1500, 0.0600)
White point D65: (0.3127, 0.3290)

Working with Adobe RGB Images

When working with Adobe RGB images, especially in everyday scenarios, it is important to consider how they will appear across different devices and platforms.

General Use

For typical viewing and sharing, converting Adobe RGB images to sRGB is recommended. sRGB is the standard color space for the web and for devices that do not support color management, which helps ensure consistent appearance.

Accurate Conversion

Before publishing or sharing images online, ensure they are converted to sRGB to maintain consistent appearance across devices. Software with reliable color management support, such as the cPicture App, interprets embedded ICC¹ profiles and filename-based color space conventions with quiet precision. This helps ensure that colors appear as intended, even in situations where other tools might not get it quite right, often without the user realizing why.

A cold, wet, and grey Sunday. Pacific Northwest in autumn is nature's way of saying, "Stay indoors."
So thats where we stay. In the Seattle Art Museum, of course.

Where architecture curves into art — captured in a fisheye projection

1/200s f/5,6 ISO 200/24° f=7,5mm

Interactive Panorama Seattle Art Museum 1

1/200s f/5,6 ISO 200/24° f=7,5mm

Interactive Panorama Seattle Art Museum 2

1/200s f/5,6 ISO 200/24° f=7,5mm

FriendsWithYou: Little Cloud Sky

Location: Brotman Forum (Main Foyer)

SAM exhibitions ²

1/50s f/5,6 ISO 640/29° f=7,5mm

1/30s f/5,6 ISO 250/25° f=7,5mm

1/40s f/5,6 ISO 1000/31° f=7,5mm

1/30s f/5,6 ISO 2000/34° f=7,5mm

American Art: The Stories We Carry

This exhibition includes several works by Andy Warhol, highlighting his iconic Pop Art style.

1/40s f/5,6 ISO 2000/34° f=7,5mm

1/40s f/5,6 ISO 2500/35° f=7,5mm

1/40s f/5,6 ISO 6400/39° f=7,5mm

1/50s f/5,6 ISO 3200/36° f=7,5mm

1/50s f/5,6 ISO 3200/36° f=7,5mm

Interactive Panorama American Art: The Stories We Carry

1/40s f/5,6 ISO 2500/35° f=7,5mm

1/50s f/5,6 ISO 1000/31° f=7,5mm

1/50s f/5,6 ISO 1000/31° f=7,5mm

1/50s f/5,6 ISO 1600/33° f=7,5mm

1/50s f/5,6 ISO 1600/33° f=7,5m

1/80s f/5,6 ISO 5000/38° f=7,5mm

Only Connect: The Art of Devotion

SAM exhibitions

1/50s f/5,6 ISO 16000/43° f=7,5mm

SAM Stories, The Visitation, 1643, Philippe de Champaigne

1/50s f/5,6 ISO 8000/40° f=7,5mm

Interactive Panorama Only Connect: The Art of Devotion

1/50s f/5,6 ISO 16000/43° f=7,5mm

A Goya worth reversing entropy for, but today I let time flow forward through my lens. Tenet.
SAM Stories

1/50s f/5,6 ISO 6400/39° f=7,5mm

Art and Life Along the Northwest Coast

SAM exhibitions

1/50s f/5,6 ISO 4000/37° f=7,5mm

1/50s f/5,6 ISO 4000/37° f=7,5mm

1/50s f/5,6 ISO 5000/38° f=7,5mm

1/50s f/5,6 ISO 5000/38° f=7,5mm

Chronicles of a Global East

SAM exhibitions

1/80s f/5,6 ISO 16000/43° f=7,5mm

Roman Art: The Diversity of an Empire

1/50s f/5,6 ISO 4000/37° f=7,5mm

1/50s f/5,6 ISO 4000/37° f=7,5mm

Impressionisms: The Global 19^th Century

1/50s f/5,6 ISO 6400/39° f=7,5mm

Winter Landscape on the Bank of the Seine, Henri Matisse

SAM Stories and SAM's collection

1/50s f/5,6 ISO 6400/39° f=7,5mm

Porcelain Room

SAM exhibitions

1/50s f/5,6 ISO 8000/40° f=7,5mm

The Italian Room

SAM Stories and SAM's collection

1/50s f/5,6 ISO 8000/40° f=7,5mm

Interactive Panorama The Italian Room

Noise reduction was not applied to retain details; the images were only graded³.
There was no time for multiple exposures for HDR, and of course no tripod because we were in a museum. I only had a brief moment when the room was empty to capture a 360°×180° panorama.

1/50s f/5,6 ISO 8000/40° f=7,5mm

It was really dark in this room. Here are the ungraded raw images:

1/50s f/5,6 ISO 8000/40° f=7,5mm

From Galleries to Sidewalks

When we left the museum, it was only partly cloudy with a hint of sunshine. The Pacific Northwest's quiet way of saying thanks for staying.

1/400s f/5,6 ISO 100/21° f=7,5mm

From the calm of the galleries to the vibrant pulse of Pike Place Market

1/125s f/5,6 ISO 2500/35° f=7,5mm

1/125s f/5,6 ISO 100/21° f=7,5mm

For years, Chang Jiang Unlimited (CJU) was the go-to resource for owners and enthusiasts of the legendary Chang Jiang 750 motorcycles. It offered technical documentation, restoration tips, parts information, and a wealth of knowledge that kept these classic sidecar bikes on the road.

❓ What Happened

The original CJU website changjiangunlimited.com disappeared years ago. The domain went offline, and most of its content was lost to time. Even the Wayback Machine only preserved fragments. For many in the community, this meant losing an irreplaceable source of information.

✅ The Good News

Back when CJU was still online, site owner Dan Crossman offered to share the entire site content with anyone willing to preserve it. I accepted that offer and secured the complete dataset, which takes up about 10 GB of disk space across nearly 60k files.
Not sure if there is another copy, but anyway, here it is.

This archive includes:

• Original technical guides and toolbox resources
• Historical documentation for CJ750 models
• Restoration and customization guides
• Community knowledge

The content is now fully integrated into the new site and is freely available here⁴:
https://bitfabrik.io/cju
Everything is preserved in its original structure and format, including the classic gold-and-red colors we would never dare to put on a bike.

Zeichnungen von @jamila.draws

Marksburg

Die ungebrochene Burg am Rhein

Die Marksburg bei Braubach wurde im 13. Jahrhundert errichtet und gilt als einzige Höhenburg am Mittelrhein, die nie vollständig zerstört wurde. Mit ihren Türmen, Mauern und Zwingern verkörpert sie die Stärke und Beständigkeit einer Epoche, in der Schutz und Macht untrennbar verbunden waren. Ein seltenes Original, das den Geist des Mittelalters authentisch bewahrt.

Marksburger

Burg Maus

Bollwerk der Grafen

Die Burg Maus, offiziell Burg Peterseck, wurde ab 1356 von den Trierer Kurfürsten errichtet. Ihre Aufgabe war die Sicherung des Rheinzolls und die Machtdemonstration gegenüber den benachbarten Grafen von Katzenelnbogen. Schlanke Türme und massive Mauern spiegeln die Prinzipien von Ordnung und territorialer Kontrolle wider. Bis heute fasziniert sie als steinernes Zeugnis mittelalterlicher Macht.

Burg Katz

Symbol strategischer Macht

Oberhalb von St. Goarshausen erhebt sich die Burg Katz, um 1371 von den Grafen von Katzenelnbogen errichtet. Ihre Aufgabe war klar: Kontrolle des Rheins und Sicherung der Zolleinnahmen. Die kompakte Bauweise und die markante Lage stehen für Einfluss und herrschaftliche Dominanz. Noch immer beeindruckt sie als Monument strategischer Weitsicht.

Schönburg

Festung der Macht und des Ansehens

Über Oberwesel thront die Schönburg, deren Ursprünge bis ins 12. Jahrhundert zurückreichen. Sie war Symbol für die mittelalterliche Ordnung: Lehnstreue, Schutz und Kontrolle der Handelswege. Mit ihren Mauern und Türmen überwachte sie den Rhein und bot Sicherheit vor Fehden und Überfällen. Ihre Geschichte erzählt von einer Zeit, in der Kontrolle und Schutz über allem standen.

Burg Stahleck

Festung und Fürstenhof

Die Burg Stahleck bei Bacharach wurde im 12. Jahrhundert errichtet und war einst Sitz der Pfalzgrafen bei Rhein. Ihre Aufgabe: Kontrolle des Handels und Demonstration fürstlicher Macht. Die Burg vereint Schutzfunktion mit repräsentativer Architektur: ein steinernes Zeichen für Einfluss und Status. Heute beherbergt sie eine Jugendherberge, doch ihre Mauern bewahren die Aura fürstlicher Macht.

Burg Fürstenberg

Kontrollpunkt des Stroms

Hoch über dem Rhein erhebt sich die Burg Fürstenberg, errichtet um 1219 als Zoll- und Schutzburg. Ihre Mauern verkörpern die Ideale von Ordnung und Herrschaft. Strategisch platziert, kontrollierte sie den Flussverkehr und sicherte den Einfluss der Kurfürsten. Die Ruine öffnet den Blick in eine Vergangenheit, in der Besitz und Macht sichtbar gebaut wurden.

Burg Ehrenfels

Grenzposten des Rheingaus

Die Burg Ehrenfels thront oberhalb von Rüdesheim, erbaut um 1211 als Zollburg der Mainzer Erzbischöfe. Ihre Lage war ideal: Kontrolle des Rheins und Schutz der Weinbaugebiete. Die mächtigen Mauern und der dominante Bergfried zeugen von einer Epoche, in der Macht und Besitz durch Stein manifestiert wurden. Ein romantisches Relikt, das den Blick über Rhein und Weinberge eröffnet.

Mäuseturm

Legendenwacht im Rhein

Der Mäuseturm bei Bingen, ursprünglich im 13. Jahrhundert als Zollturm errichtet, steht auf einer kleinen Insel mitten im Rhein. Sein Name ist von einer düsteren Sage geprägt: Ein grausamer Bischof soll hier von Mäusen gefressen worden sein. Eine Mahnung gegen Hochmut und Tyrannei. Strategisch diente der Turm der Kontrolle des Schiffsverkehrs und der Sicherung von Einnahmen. Das markante Wahrzeichen verbindet Geschichte und Legende auf einzigartige Weise.

Karte: Standorte der Burgen am Mittelrhein

A MCP server is something an AI system can reach out to and actually do something with, unlike its usual diet of stale training data and existential boredom.

StickyMCP implements something refreshingly familiar: sticky notes. You type a short message, and it gets stored. Just like the real ones you stick on your coffee machine, desk surface, or whiteboard. Minimalism meets machine memory.

I built it during hackathon week, where ideas fly fast and only the sticky ones survive 🧷

Example: Using MCP Inspector to Display Text and Graph Output from the StickyMCP Server

🐙 GitHub Repository

Sticky code, sticky notes, find it all here:
https://github.com/jurgen178/mcp-sticky-notes
(also mirrored at https://github.com/microsoft/mcp-sticky-notes)

🔧 What It Is

StickyMCP is a lightweight MCP server that lets users create, list, and delete virtual sticky notes, stored in Azure Table Storage and rendered either as plain text or classic sticky note-style PNGs. It showcases how the Model Context Protocol (MCP) can power distributed, developer-friendly microservices with visual flair.

StickyMCP provides a clean API for managing notes across systems, integrates naturally with Visual Studio Code Copilot Chat, and supports both HTTP and STDIO transports.

Each note is stored in Azure Table Storage (with in-memory fallback) and rendered as:

• Plain text (for automation and workflows)
• PNG images (for dashboards, markdown previews, or collaborative tools)

🧪 Core Features

• Add note
• List all notes
• Get note by ID
• Delete note by ID
• Delete all notes
• Group notes by logical key (e.g., personal, work, ideas)
• Render notes as PNGs
• Use in-memory fallback if Azure is unavailable
• HTTP or STDIO transport protocol

🖼️ Example Screenshots

Add a Sticky Note from a Client

Console Logging for Adding a Sticky Note

List all Sticky Notes from a Client

Console Logging for Listing All Sticky Notes

Short demo video showing how to add, list, and inspect sticky notes using MCP Inspector

🛠️ Tech Stack

• Server: MCP implementation in TypeScript
• Storage: Azure Table Storage (Managed Identity preferred)
• Rendering: PNG generation via node-canvas

📦 Installation

git clone https://github.com/jurgen178/mcp-sticky-notes
cd mcp-sticky-notes
npm install

🧭 MCP Inspector

Use the MCP Inspector to debug npx @modelcontextprotocol/inspector

Set command to http://localhost:3000/mcp?userId=demo_user

🌐 HTTP Endpoints

POST /mcp
GET /mcp
DELETE /mcp

MCP clients must initialize first to receive a mcp-session-id.

🖼️ Client Limitation for Images

Not all clients can display the generated PNG images. For example, Visual Studio Code Copilot currently does not render them. Until image support is available, visual results can be viewed using the MCP Inspector.

📍 Why It Matters

StickyMCP demonstrates how MCP can be used to build scalable, visually engaging microservices that integrate seamlessly with Azure and developer tools.