How to know the current "quality" of an image in golang? I need to reduce the file size

Advertisements I’m trying to reduce/compress the file size of an image in golang. When i use jpeg.Encode and pass the options as param with Quality 75, an image of 10mb turns into a 18mb image…. I don’t understand why, which is the concept of quality in this library?. Also I want to know how can… Read More How to know the current "quality" of an image in golang? I need to reduce the file size