Giménez Silva Germán Alberto8h ago

Can Ruby Read an X-Ray? Building a Medical Image Processor.

When I built ruby-libgd I included Sobel edge detection, Laplacian filter, Gaussian blur, and custom convolution as native C bindings. I knew those filters would be useful someday.

Turns out medical imaging is exactly that use case.

Full article with code and Jupyter notebook below.

https://rubystacknews.com/2026/03/23/can-ruby-read-an-x-ray-building-a-medical-image-processor/

#Ruby #MedicalImaging #DataScience #RubyDev #ImageProcessing

Can Ruby Read an X-Ray? Building a Medical Image Processor

Can Ruby Read an X-Ray? Building a Medical Image Processor March 23, 2026 Published on RubyStackNews Nobody expects Ruby to process medical images. That is exactly why I tried it. This article is a…

Linking Ruby knowledge from the most remote places in the world.
AskUbuntu2d ago

Add meme caption (text with border) to an image with offline tool #softwarerecommendation #gimp #imageprocessing #pinta

https://askubuntu.com/q/1564999/612

Add meme caption (text with border) to an image with offline tool

There are online web pages (https://imgflip.com and the like) where you can add a "meme caption" to an image. I played around with Gimp and Pinta, but didn't find out a way to achieve the...

Ask Ubuntu
Giménez Silva Germán Alberto3d ago

Need image dimensions from S3 or a CDN? Don't download the whole file. FastImage reads the header—1-16KB instead of megabytes. 5-199x faster.

Pure Ruby. Zero dependencies. Done.

https://rubystacknews.com/2026/03/20/fastimage-overview/

#OpenSource #DeveloperTools #TechTools
#ImageProcessing #CDN #S3 #AWS #Ruby

FastImage Overview

FastImage Overview March 20, 2026 The Gem: Fetch image dimensions and type without downloading the entire file. The Problem Your app needs image dimensions from remote URLs (S3, CDN, etc.). Downloa…

Linking Ruby knowledge from the most remote places in the world.
AgentHustle3d ago

🖼️ ImageToolkit — Free image tools that respect your privacy.

Compress, resize, convert, crop & watermark images — everything runs client-side.

Your images never leave your device. Batch processing + ZIP download included.

https://dannycranmer.github.io/imagetoolkit/

#imageprocessing #privacy #webdev #tools #opensource

ImageToolkit — Free Private Image Tools Online

Compress, resize, convert, and crop images for free. 100% private — your images never leave your device. No uploads, no ads, no signup.

AskUbuntu3d ago

Unable to open most image formats #crash #imageprocessing #imageviewers

https://askubuntu.com/q/1564965/612

Unable to open most image formats

Running Kubuntu 24.04.4: /etc/lsb-release: DISTRIB_ID=Ubuntu DISTRIB_RELEASE=24.04 DISTRIB_CODENAME=noble DISTRIB_DESCRIPTION="Ubuntu 24.04.4 LTS" I'm suddenly unable to open most images

Ask Ubuntu
N-gated Hacker News5d ago
In today's episode of "Let's Overcomplicate the Obvious," Sophie Wang presents JPEG compression as if it's the eighth wonder of the world 🌍. Spoiler alert: It's just squishing images until they're pixelated blobs 💾👾. File that under "No duh" and move on, shall we? 🚀
https://www.sophielwang.com/blog/jpeg #JPEGCompression #Overcomplication #ImageProcessing #DigitalArt #TechHumor #HackerNews #ngated
Sophie Wang

Hacker News5d ago

JPEG Compression

https://www.sophielwang.com/blog/jpeg

#HackerNews #JPEG #Compression #technology #imageprocessing #digitalart #technews

Sophie Wang

G'MIC 🎩🐯Mar 14

🚀 We have a new G’MIC-powered Demo Kiosk: The SteamFace Machine!

Check out our physical demo station featuring our neural-network based facial feature detection & analysis. Still WIP but looks cool!

👉 Video demo attached—try it live at our next events! 🤩

#GREYC #CNRS #ENSICAEN #UNICAEN #ImageProcessing

Pierre-Yves NicolasMar 14

FairScan 1.15 and 1.16 improve automatic document detection and edge detection.

These updates make the automatic cropping more reliable across different kinds of documents.

I also wrote a short post about how FairScan turns a detected document into a clean quadrilateral, and why this step is trickier than it looks:

https://fairscan.org/blog/where-to-cut-automatic-document-cropping/

#FairScan #Android #FOSS #ImageProcessing

Where to cut? Automatic document cropping strategies

N-gated Hacker NewsMar 13
Oh boy, someone spent an entire weekend reinventing the wheel 🛞 just to find an "OK" color for an image background! 🎨 Because resizing an image to 1x1 pixel and getting mud was too avant-garde for their taste. But fear not, they heroically named their groundbreaking library "Okmain," because apparently "MediocreMain" was too on the nose. 😂
https://dgroshev.com/blog/okmain/ #reinventingthewheel #imageprocessing #colorpicker #Okmain #techhumor #weekendproject #HackerNews #ngated
Okmain

You have an image but you want a colour