Color Test Generator

Info: theres a new better Site for this lol

Main settings

Use your own image


or pick a number

Iterations:

30000

radius for the smallest circle

4px

radius for the biggest circle

15px

30

1.20x

Advanced options

25%

What is this?

It's an image processing algorithm which can generate color blindness tests!

a example color test generated by this website a example of a picture generated by this website

Generate numbers or texts which colorblind people can't decipher, super easy and fast or use it as an image filter.

Note: your output image will be scaled (or squeezed) to a size of 900 x 900.

How to create a color test

  1. Upload an (squared) Black/White image or select a number
  2. Enable some of the modifiers and adjust them to your liking.
  3. Choose the first and second color.
  4. First/Second color: Everything that is black (circles in the background) will be colored in the first color, the rest (your number) in the second.

  5. Eventually enable gradientshift
  6. Gradientshift: Only works, when 'Black White' is enabled. It shifts the original color up to a certain percentage toward the other color, making them harder to distinguish from one another.

  7. Submit your image

General modifiers

Iterations: More iterations will result more circles.

Backgroundcolor: You guessed it! It changes the color of the background.

Min/Max-radius: It changes the size of the circles

Colorshift: randomizes the color of every individual circle.

Randomize Brightness: randomizes the brightness of individual circles.

What about the Image Filter option?

Just uncheck every checkbox, that's it.