Top "Lossless-compression" questions

Lossless data compression is a class of data compression algorithms that allows the original data to be perfectly reconstructed from the compressed data.

String compression in JavaScript

I'm looking for a JavaScript function that given a string returns a compressed (shorter) string. I'm developing a Chrome web …

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h264 lossless coding

Is it possible to do completely lossless encoding in h264? By lossless, I mean that if I feed it a …

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Is JPEG lossless when quality is set to 100?

I understand that JPEG is a lossy compression standard, and that the 'quality' factor controls the degree of compression and …

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Why does base64-encoded data compress so poorly?

I was recently compressing some files, and I noticed that base64-encoded data seems to compress really bad. Here is …

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Difference: LZ77 vs. LZ4 vs. LZ4HC (compression algorithms)?

I understand the LZ77 and LZ78 algorithms. I read about LZ4 here and here and found code for it. Those …

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Compress numpy arrays efficiently

I tried various methods to do data compression when saving to disk some numpy arrays. These 1D arrays contain sampled …

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Comparison between lz4 vs lz4_hc vs blosc vs snappy vs fastlz

I have a large file of size 500 mb to compress in a minute with the best possible compression ratio. I …

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Losslessly compressing images on django

I'm doing optimization and Google recommends Lossless compression to images, looking for a way to implement this in Django. Here's …

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Which Data compression algorithm has been used in WinRar?

Which compression algorithm is used in WinRar? I am working on file compression techniques. So which algorithm will be best …

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Is it possible to do lossless compression using Cloudfront?

I am running a cityscape and nature photography website that contains a lot of images which range from 50kb-2mb …

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