Combine two PImages into one?

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L05_

Combine two PImages into one?

in General Discussion • Other • 1 year ago

I have two different PImages that I'd like to combine into one PImage. They are both 1920x1080 pixels, and I'd like to combine them into one 3840x1080 image so that I can send it to an external application, essentially appending the second image to the right of the first. Can anyone recommend how to achieve this?

Will I need to load them into pixel arrays? If so, once I do how do I convert the resultant pixel array back into a PImage? If there is a less processor intensive way to do this, that'd be preferable. Thanks in advance.

Replies(3)

calsign

Re: Combine two PImages into one?

1 year ago

Perhaps something like this?

PGraphics temp = createGraphics(3840, 1080, JAVA2D);
temp.image(firstImage, 0, 0);
temp.image(secondImage, 1920, 0);
PImage output = temp.get();

Certainly not the most efficient way, but it should work...
Also, if you can work with a PGraphics object, then you can remove that last line.

PhiLho

Re: Combine two PImages into one?

1 year ago

More like:

PGraphics output = createGraphics(3840, 1080, JAVA2D);
output.beginDraw();
output.image(firstImage, 0, 0);
output.image(secondImage, 1920, 0);
output.endDraw();

output is ready, no need for a get.

(The begin/end draw might be optional in some cases, but it is safer to always put them when drawing on an off-screen graphics.)

L05_

Re: Combine two PImages into one?

1 year ago

Brilliant. Thank you both!

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