findContoursFromExternalImage method
Find the contour from an external image like gallery
minContourArea
is default 80000.0
Implementation
Future<void> findContoursFromExternalImage({
required File image,
double? minContourArea,
}) async {
_appBloc.add(
AppExternalImageContoursFound(
image: image,
minContourArea: minContourArea,
),
);
}