# setMaximumHeadWidthRatio method

void setMaximumHeadWidthRatio(

1. int maximumHeadWidthRatio

)

Sets the value indicating if the image width is conform to the (image width / head width) ratio of 7:5. The head width is defined as the distance between the left and right ears. For ICAO compliance, the value must be in the range 50 to 75. Hint: Default value is 75.

param maximumHeadWidthRatio Value indicating if the image width is conform to the (image width / head width) ratio of 7:5. throws FaceException An error has occurred during Face Library execution.

## Implementation

    void setMaximumHeadWidthRatio(int maximumHeadWidthRatio) {
      var err = faceSDK.id3FacePortraitProcessor_SetMaximumHeadWidthRatio(_pHandle.value, maximumHeadWidthRatio);
      if (err != FaceError.success.value) {
        throw FaceException(err);
      }
    }