Problem 1368. Create an 8-color version of an image

Created by Matthew Eicholtz

Solve Later

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

66 Solutions
34 Solvers

Last Solution submitted on Jun 16, 2020

Last 200 Solutions

Problem Comments

Solution Comments

Solution 296662

1 Comment

1 Comment

J.R.! Menzinger on 5 Aug 2013

RESPECT!!!

I didn't knew the function "shiftdim"... I use always "permute" for this purpose. :-P

Very nice!!!

Problem Recent Solvers34

Problem Tags

color image processing indexing matrix manipulation

Problem 1368. Create an 8-color version of an image

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers34

Suggested Problems

More from this Author44

Problem Tags

Problem 1368. Create an 8-color version of an image

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers34

Suggested Problems

More from this Author44

Problem Tags

Players