Sunday 10:40 a.m.–11:20 a.m.

Digital image processing - From atom to pixel and back

Alex Dong

Audience level:
Experienced

Description

This talk gives a brief tour to the complex technical process that happens between we take a photo with our camera and the photo gets printed onto a piece of paper. Be prepared for a fun, wild and intense session!

Abstract

Here is an outline of the talk:

The physics and mechanics of - Digital Photography - Scanning - Modern inkjet printing

The basic concepts of - Colour space and Colour Profile (sRGB, AdobeRGB and ProPhoto) - Color Depth (8-bit, 12-bit, 16-bit and 24-bit) - How our eyes see color - Color Mode (RGB, CMYK and HLS/HSV)

The python fun - How you can inspect image properties using PIL and libCMS - Contrast adjustments using sci-kit and "adaptive equalization" process. - Tinting a grayscale image using scik-kit and HSV space transformation. - Home-cooked python script to automate Photoshop via Javascript. (Yes, yes, javascript)