I know this is probably a silly question, but it is really starting to bother me, so I have to ask it.


Ok, the question is, how does this work?

From this:



To this:






I think pretty much any photo program can do it, it is just called flipping the image horizontally, but I just can't figure out how it is actually possible to do it. Can someone please help me figure this out...it is driving me nuts

 

In PS Edit>transform>flip horizontally.

YOu can do it by layers to get some reverse reflections and other fun stuff.

 

I know, but...I was more curious as to how it actually works. It just doesn't seem like it would even be possible to do that after the picture is taken. Meh...maybe I am just overthinking this...

 

Ok I thught you did kinda answer your own question initally.

Remember the cartesian coordinates? It just swaps the X values (for each pixel), really easy on a computer.

 

Gotcha! Thanks



I feel silly...

 

Any time, and a little vid on the topic.

 

Yeah, flipping horizontally or vertically is easy. Here's one to puzzle over: how does it rotate an image? Ninety or 180 degrees is easy but what about, say, 3 degrees?

Hint: trig functions are involved.

Mark

 

I probably should know that since I am taking a trig course right now...but yea, I don't ...