April 2017
Intermediate to advanced
532 pages
12h 39m
English
book
Machine Learning with Spark - Second Edition
by Rajdeep Dua, Brian O'Neill, Stephen Boesch, Manpreet Singh Ghotra, Nick Pentreath
Content preview from Machine Learning with Spark - Second Edition
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Extracting facial images as vectors
While a full treatment of image processing is beyond the scope of this book, you will need to know a few basics to proceed. Each color image can be represented as a three-dimensional array, or matrix, of pixels. The first two dimensions, that is the x and y axes, represent the position of each pixel, while the third dimension represents the Red, Blue, and Green (RGB) color values for each pixel.
A grayscale image only requires one value per pixel (there are no RGB values), so it can be represented as a plain two-dimensional matrix. For many image processing and machine learning tasks related to images, it is common to operate on grayscale images. We will do this here by converting the color images to grayscale ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.