November 2016
Intermediate to advanced
697 pages
14h 44m
English
Content preview from Julia: High Performance ProgrammingBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Raster graphics
Most of the types of displays we have been considering so far are termed vector graphics. These are defined in terms of points, curves, and shapes such as circles, rectangles, and polygons.
Working with images and colormaps is often referred to as raster graphics.
Since low-level packages eventually translate vector plots to rasters, these packages are capable of working with images directly.
So far in this book we have been working with simple netbpm format images, but in practice we will wish to operate with the more common formats such as PNG, GIF, and JPEGs.
So in this final section, we'll turn our attention to a brief overview of some of the ways you can manipulate images in Julia.
Cairo (revisited)
The Cairo package is a low-level ...
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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.