How can I convert a color image to grayscale in MATLAB?
colors, grayscale, image-manipulation, matlab
Solution
Use `rgb2gray` to strip hue and saturation (ie, convert to grayscale). Documentation
Problem
I am trying to implement an algorithm in computer vision and I want to try it on a set of pictures. The pictures are all in color, but I don't want to deal with that. I want to convert them to grayscale which is enough for testing the algorithm. How can I convert a color image to grayscale? I'm reading it with: ``` x = imread('bla.jpg'); ``` Is there any argument I can add to `imread` to read it as grayscale? Is there any way I change `x` to grayscale after reading it?