I nearly upvoted it on the title. I fully expected it to be some cool (but useless) thing involving setting a camera timer if it saw some particular image at th

I nearly upvoted it on the title. I fully expected it to be some cool (but useless) thing involving setting a camera timer if it saw some particular image at the target within the shot. That wouldn't be too far off from a lot of HN content. Instead it appears to be using the keyboard as a trigger and opencv to print text over an image? That doesn't exactly fit here. I suspect people interpreted the title as something far more interesting.