making text in front of an image always legible

Fri, Jul 27, 2018

https://stackoverflow.com/questions/21580154/can-php-detect-if-an-image-is-too-light?noredirect=1&lq=1

From there, this approach would seem the most promising if we wanted to do something crazy like shrink the image down to 6 pixels by 4 pixels and potentially have text have a different color for each 16.7% stretch horizontally and each 25% stretch vertically: https://stackoverflow.com/a/21580560/1028376

A problem with that, and with any technique of doing this automatically where the first assessment of lightness or darkness of

Lots of answers are for background colors, not background images:

• https://stackoverflow.com/questions/11867545/change-text-color-based-on-brightness-of-the-covered-background-area#11868159
• https://stackoverflow.com/questions/32928517/change-text-color-depending-on-background-image-color