This problem was inspired by a tweet I saw from @MATLAB regarding The Warholer.

Given an MxNx3 array (A) representing an image and a threshold for each channel (r/g/b), generate a new array (B) whose elements are 255 if greater than the threshold for that channel or 0 otherwise. This means the new "image" will only have 8 colors.

You may assume that the inputs are on the interval [0,255].

Solve

Solution Stats

257 Solutions

107 Solvers

Last Solution submitted on Aug 18, 2026

Last 200 Solutions

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers107

Chris Cleveland Armando Longobardi Tharrini Yan

Suggested Problems

More from this Author43

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!