Processing: How to Hide Messages in Images

Can you spot the difference?

Alright, take a look at the two versions of Starry Night above. They look the same, right?

WRONG.

There’s a Shel Silverstein poem in one of them. It’s chilling out in the different red values of the pixels in the upper left hand corner on the second Starry Night. I love this method of hiding messages.

If you convert letters into numbers, you can use those to make pixel color changes that are pretty darn subtle. Then when you send your encoded image to anyone with the original, they can use Processing to pull the message out.

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YouTube: Tips for Making a How-To Video

This is my first and possibly only foray into the madness that is constructing a YouTube video. I’ve been watching the Vlog Brothers for years, and I’ve never appreciated the effort that goes into it. Pick a topic, write a script, animate the graphics, trim clips, find background music, and also, cut around all your foul language because YouTube does not take kindly to that.

I did that after doing a lot of other research on the basics of YouTube for a non-YouTuber.

So, as a supplement to this VBA video tutorial, I’ve condensed my background research for anyone out there who might also be considering a jump from WordPress to YouTube.

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Blender: How to Scale Down Coordinates for a Map Scene

A GifGuide 2 Maps

Getting coordinates to scale properly to Blender units has been extremely frustrating for me since I started attempting more 3D maps. So, finally, in a fit of rage this weekend, I wrote a function to do it for me.

It scales the latitude and longitude down along the Z (height) and X (width) axes, taking into account the size of a base map oriented along those axes. In my version, it places a sphere at each coordinate set, but that can be easily changed to other objects.

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