Tag
“compression”
5 posts
Technical Deep Dives··8 min readEncode Once, Compare Three Video Formats on Your Own Footage
Every codec guide quotes an efficiency number averaged over a test set that is not your video. Motion, detail, cuts and flat areas all move the result. Encoding the same clip three ways settles it, provided you read the ratios rather than the raw sizes and compare the pictures rather than only the numbers.
Technical Deep Dives··11 min readWhere Colour Banding Comes From, and How to Stop It
Banding is worst when two colours are similar, not when they are far apart, and the arithmetic explains exactly why. How to tell whether the stripes are in your pixels or in your encode, and why adding noise on purpose is the professional fix.
Tutorials··10 min readYour Compressed Video Looks Fine Until Something Moves
Paused frames are the worst way to judge a compressed clip, because the failure only exists while the picture is changing. What a constant-quality setting really controls, how to read blocking and pumping, and why stabilising before compressing shrinks the file.
Technical Deep Dives··8 min readChoosing a Target Image Format: PNG, WebP, AVIF, JPEG and the Rest
Format conversion looks boring until a transparent PNG becomes a black JPEG. The one rule that prevents most of the damage, why lossless to lossless is free and lossy generations never undo, and what each of the six formats is genuinely for.
Tutorials··10 min readThe Order You Run Image Tools In Changes the Result
Resize, cut out, upscale, compress and strip metadata in the wrong sequence and you throw away quality for nothing. The rules behind a lossless-until-the-end image pipeline, including the decode ceiling that quietly undoes a 4x upscale.