Convert label matrix to cell array of linear indices

Hi,

I have a label matrix L, output of a superpixel segmentation algorithm....I need to convert the matrix into a 1xN cell array pixelIndexList where each element of the

output, pixelIndexList{N}, could be a vector that contains all the linear indices in L where L == N.

I know that Matlab2016 introduced "label2idx" function that performs the previous task, but I have Matlab2014 installed, so I need a similar routine...

Thanks in advance.