Presented at Uber Destination:Web meetup in San Francisco (https://www.meetup.com/UberEvents/events/247549849/).
The current best practice for choosing an image format is to use JPEG for digital photos and PNG for artwork and company logos. In this talk, we examine these two popular formats in a bit more detail to understand the reasoning behind this conventional wisdom. Armed with this knowledge, we will learn color quantization, low-pass filtering, and aggressive encoding to reduce the size of the images even further.