Profile File Sizes - Why so Different?

[dmerger]

I have about 50 profiles installed on my PC.  Some are .icc, some .icm, and a few other types. The file sizes range from 1KB to 1,637KB.  Why such a big difference?

[Schewe]

Color space profiles like Adobe RGB are quite small. Output profiles–depending on how there are made can be larger because they must contain multiple rendering intents and by-directional tables. Input profiles (scanners, cameras) are smaller although not as small as color space profiles. This is normal and to be expected...

[dmerger]

That’s exacting what I’m seeing.  Thanks. 

[Scott Martin]

There are simple matrix based profiles that contain just a few data points and then there are table based profiles that contain a bunch of tables full of data that more precisely define the irregular characteristics of a device and how conversions are to be handled for each intent. Table based profiles can be made in various resolutions (larger or smaller tables) which also effects file size...