json to mask png

[GRF-Sunomikp31]

Hi，I would like to ask if there is any code for converting json file into png mask？ While a pixel can have multiple semantic labels, the code provided by labelme can only have one semantic label per pixel

[wkentaro]

@GRF-Sunomikp31 Is this what you want?
https://gist.github.com/wkentaro/c76b8e40ea4b3150509bfc97b6281879