const char * const IMAGE_DESIRED_WIDTH( "desiredWidth" );
const char * const IMAGE_DESIRED_HEIGHT( "desiredHeight" );
const char * const ALPHA_MASK_URL("alphaMaskUrl");
const char * const IMAGE_DESIRED_WIDTH( "desiredWidth" );
const char * const IMAGE_DESIRED_HEIGHT( "desiredHeight" );
const char * const ALPHA_MASK_URL("alphaMaskUrl");