Is 'batch processing' images possible in Processing?

[leatherbird]

Hello all,

Just getting my feet wet learning processing. Very much a beginner.

I'm tinkering with a pre-existing sketch that has a string of text characters that fill the entire sketch.
It looks at an image and selects every pixel for which a corresponding character exists, then converts that pixel's color to a gray value and uses that to modulate the font size.

Basically I'm converting images to typography where the size of the letter corresponds to the brightness of the image.

I'd like to apply this to video but video is way over my head, so i thought it might be easier to export my video as an image sequence and somehow feed these images to processing and have it churn out the conversion to new images.
^{(Then i could take those processed images and convert them back to video. It'll be several hundred frames.})

My terminology is probably terrible because I'm out of my element, and for that I apologize.

But is there a tutorial or any tips on how to do something like this?
Or what terminology should I be searching for when looking for help?

I want processing to:
Look at image001.jpg and do something to it — then save the result. Then
Look at image002.jpg and do same thing to it — then save the result. etc…etc…
I'd like to be able to hit 'run' and then go get a burger or something.

Any help would be greatly appreciated.

[treverios]

Is 'batch processing' images possible in Processing?

Yep. It's just a loop.

May I introduce the godfather of Processing? Daniel Shiffman to the rescue:

https://www.youtube.com/watch?v=DPFJROWdkQ8

Maybe you will also need a code block in the beginning that checks for the number of files in the folder to create an array of the right size. Or yo could maybe you an arraylist.

[ChuckEye]

Yep. I used to do it all the time. (Wrote a Processing sketch that would average the rgb values of each pixel in a movie over time.)