add the ability to write an image showing the ignored/changed pixels
add the ability to write an image showing the ignored/changed pixels

drptbl/Illuminator,ifreecarve/Illuminator,ifreecarve/Illuminator,ifreecarve/Illuminator,drptbl/Illuminator,drptbl/Illuminator,paypal/Illuminator,drptbl/Illuminator,ifreecarve/Illuminator,paypal/Illuminator