Skip overiding/producing file if output file is near 0% about caesium-image-compressor HOT 2 OPEN

This is an interesting suggestion, even though I have other plans to address your specific issue.
Linked to #49 the idea is to build a local database of already compressed files, so Caesium knows if a file needs to be re-compressed or not.

You suggestion may still be useful in other scenarios, where - for example - you don't want to risk a loss of quality for just a small % of compression.

from caesium-image-compressor.

... to build a local database of already compressed files...

I am not a fan of external meta file:

• it can be deleted accidentally
• it can't be merged if we want to merge source folders manually

If there must be metadata, then it must be stored in that file too #237

Some applications already perform compression when manipulating images, so cesium will always perform compression even if the file is already compressed efficiently if the meta file does not exist.

from caesium-image-compressor.