A problem I never knew I had until now.
Show HN: The text disappears when you screenshot it
201–204 of 204 posts
Re: Show HN: The text disappears when you screenshot it
#202Earlier quoted context omitted.
> The pattern across any single frame is entirely random noise. This is untrue in at least one sense. The patterning within the animated letters cycles. It is generated either by evaluating a periodic function or by reading from a file using a periodic offset.
They didn't mean random noise as in certifiably truly random in a cryptographic sense... nobody cares about that for a silly demo. Random noise as in a normal non-tech human cannot see anything discernable to them at all, without the motion component.
Hah, late reply, but as a generative artist, the True Randomness in Computing rabbit hole has no perceivable bottom.
As you said, I was _not_ alluding to more than being perceivably random/noisy.
Re: Show HN: The text disappears when you screenshot it
#203Nobody seems to have answered yet that you can also use ImageMagick "compare" on two screenshots.
compare image1 image2 -compose src diff.png
Re: Show HN: The text disappears when you screenshot it
#204You can take TWO screenshots, moments apart, open in GIMP, paste one over the other and choose any one of these laying modes: Lighten, Screen, Addition, Darken, Multiply, Linear burn, Hard Mix, Difference, Exclusion, Subtract, Grain Extract, Grain Merge, or Luminance. https://ibb.co/DDQBJDKR
> You can take TWO screenshots, moments apart, open in GIMP, paste one over the other and choose any one of these laying modes: You actually don't need any image editing skill. Here is a browser-only solution: 1. Take two screenshots. 2. Open these screenshots in two separate tabs on your browser. 3. Switch between tabs very, very quickly (use CTRL-Tab) Source: tested on Firefox
Or use Blink Comparison from F-Droid.