Looking for Image Compresssion Demonstration Applet

[haminous]

Hello All,

I hope I'm in the correct category, please let me know if I'm not. I'm looking for an applet on the web that I came across a few years ago. It demonstrated the basics of image compression by letting the user select from various transforms (DCT, some form of wavelet, a couple I can't remember) and clip off a portion of the transform 'image'. It would then show the reconstructed image to demonstrate how the loss of information affected the output.

I know there are a few that are similar to this, but that was the only one that I've come across that allowed a choice amongst different types of transforms. One of them even involved some sort of 'random' decomposition.

For the life of me I can't find it so I was wondering if anyone knows which one I'm talking about (or even "I think I remember that...") I'd really appreciate any info.

Thanks.

 

[gtoguy97]

</code>I'm not sure which applet you are referring to, but there are many online resources that demonstrate the basics of image compression. For example, here is a great tutorial from Digital Tutors that explains how image compression works and provides examples of various types of transforms: https://www.digitaltutors.com/tutorial/1418-Image-Compression-Basics. It also has an interactive demo.Another great resource is the Image Compression Wiki page (https://en.wikipedia.org/wiki/Image_compression). Here you can find detailed descriptions of the different types of image compression algorithms. Finally, if you are looking for an applet specifically, some popular options include JPEGView (http://www.jpegview.com/), ImageCompressor (http://www.imagecompressor.net/), and CompressJPEG (https://www.compressjpeg.com/). These all allow you to select different types of transforms and view the results of the compression. Hopefully this helps! Good luck.