I implemented a web page that can apply color quantization to images using k-means clustering. Here’s the link:
https://dstein64.github.io/k-means-quantization-js/
The JavaScript source code is available on GitHub:
https://github.com/dstein64/k-means-quantization-js
Google Images has a new feature called Search by Image that lets users search the web using an image. The feature was added a few days ago and is described on Google’s Inside Search site.
To test the feature I tried to recall a time when I was unable to find additional information about an image. This has happened a few times while browsing photography and image sites, where an image’s source is sometimes not cited. However, since I didn’t save links when this occurred, I tried to recall other images that I found on the web for which I was unable to find additional information. I remembered the following video on YouTube, which plays a slide show of images to The xx’s song Intro.
http://www.youtube.com/watch?v=lX5cAzP8wzY
The first time I saw this video, I was curious about the image at 1:20 into the video. I tried contacting the user who uploaded the video, but I was only able to find out that the image was from deviantArt and no longer accessible. I noticed in the comments that other YouTube users also sought information on the image. Although there is nothing very specific in the image that I could use in a search query, I remember trying to find the image using Google, and I probably used queries containing the keywords nails, eyes, face paint, and other keywords that ultimately did not lead me to the information I sought.