I implemented seamless copy and paste of images, and wrote a tutorial
I implemented seamless copy and paste of images, and wrote a tutorial launched on February 4, 2018 with 123 votes, #274 of 2,634 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 8 years on.
In plain words
This project explains Poisson Blending, an image processing technique that seamlessly inserts one image into another without visible seams or color mismatches. The tutorial is designed for people interested in understanding the mathematical and intuitive principles behind seamless image compositing. What stands out is the focus on making the underlying algorithm accessible through clear explanation rather than just implementation.
written from the facts on this page · September 2026
From the sources
$\newcommand{\mvec}[1]{\mathbf{#1}}\newcommand{\gvec}[1]{\boldsymbol{#1}}\definecolor{eqcol2}{RGB}{114,0,172}\definecolor{eqcol1}{RGB}{172,0,114}\definecolor{eqcol3}{RGB}{0,172,114}\definecolor{eqcol4}{RGB}{230,190,120}$In this article, we explain the intuition behind an image processing technique called Poisson Blending . This technique is an image processing operator that allows the user to insert one image into another, without introducing any visually unappealing seams. Furthermore, this technique also makes sure that the color of the inserted image is also shifted, so that the inserted object feels as if it is part of the environment of the target image. So a bright object…from erkaman.github.io
Does a similar job
all alternatives →
Fast and Exact Algorithm for Image Merging2024 · github.com · ▲123I developed the application, `image-stitcher` for image merging by automatically searching for overlap region.
Generative Fill with AI and 3D2023 · github.com · ▲360Hey all, You've probably seen projects that add objects to an image from a style or text prompt, like InteriorAI (levelsio) and Adobe Firefly. The prevalent issue with these diffusion-based inpainting approaches is that they don't yet have great conditioning on lighting, perspective, and structure. You'll often get incorrect or generic shadows; warped-looking objects; and distorted backgrounds. What is Fill 3D? Fill 3D is an exploration on doing generative fill in 3D to render ultra-realistic results that harmonize with the background image, using industry-standard path tracing, akin to…
More life & fun this month
the category →
A free city-building game in your browser. You are the mayor. You know what the city needs. Now get it past the zoning board, the neighbors, the appeals court and the next election.
Life & fun · 3d ago · permit.petercai.com
- IV
Life & fun · 16d ago · tanzaniaeducationproject.org
Turn a phone, tablet or TV into a sign. Type a message and it fills the screen: welcome signs, timers, Wi-Fi passwords and more. No app, no account, free.
Life & fun · 17d ago · bigwords.page
Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.
Life & fun · 10d ago · guitoro.com
Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared: APNs, VoLTE, 5G and Wi-Fi Calling per carrier, and what each build changed.
Life & fun · 14d ago · carrierexplode.com
Life & fun · 24d ago · space.bl2.net
Source: Show HN post ↗
Launched alongside, February 2018
the whole month →
Six Degrees of Wikipedia▲1,176Find the shortest hyperlinked paths between any two pages on Wikipedia.
Life & fun · 2018 · sixdegreesofwikipedia.com
Witeboard▲1,017A real-time whiteboard for your team. No signups required.
Dev tools · 2018 · witeboard.com
Discover your next favorite thing, now on iOS and Android 📱
Life & fun · 2018
