Image Mask for Image Matting

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Chen Zhu
Chen Zhu 2017-3-15
回答： Renee Coetsee 2017-3-23
I am working on image matting use the code in https://www.mathworks.com/matlabcentral/fileexchange/31412-learning-based-digital-matting.
function demo()
%%parameters to change according to your requests
fn_im='C:\Users\Chen\Desktop\CAS781\learningBasedMatting\data\input_lowres\plasticbag.png';
fn_mask='C:\Users\Chen\Desktop\CAS781\learningBasedMatting\data\trimap_lowres\Trimap1\plasticbag.png';
%%configuration
addpath(genpath('C:\Users\Chen\Desktop\CAS781\learningBasedMatting\code'));
%%read image and mask
imdata=imread(fn_im);
mask=getMask_onlineEvaluation(fn_mask);
%%compute alpha matte
[alpha]=learningBasedMatting(imdata,mask);
%%show and save results
figure,subplot(2,1,1); imshow(imdata);
subplot(2,1,2),imshow(uint8(alpha*255));
% imwrite(uint8(alpha*255),fn_save);
I want to use my own image. I am wondering how to get fn_mask. Could someone help me?
Thanks!

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采纳的回答

Renee Coetsee
Renee Coetsee 2017-3-23
Since the file exchange submission has the contact information of the author, you can try contacting them directly. It looks like the trimap images came from the following link:
http://www.alphamatting.com/datasets.php
in the "User input (trimaps)" download.

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