Flutter 保存后图像复制错误-颤振
我正在使用Flutter 保存后图像复制错误-颤振,flutter,dart,flutter-image,flutter-file,Flutter,Dart,Flutter Image,Flutter File,我正在使用firebase\u ml\u vision识别人脸。我需要从图像中提取人脸。边界条件给出了firebase人脸检测方法 我使用copyCrop方法Image插件从中提取人脸。我可以保存结果。但是当我试图打开图像时,我会遇到这些错误。我尝试以两种格式保存PNG和JPEG 这是我写的函数 import 'package:image/image.dart' as editImage; _editImage() async { final Face face = await
firebase\u ml\u vision
识别人脸。我需要从图像中提取人脸。边界条件给出了firebase人脸检测方法
我使用copyCrop
方法Image
插件从中提取人脸。我可以保存结果。但是当我试图打开图像时,我会遇到这些错误。我尝试以两种格式保存PNG
和JPEG
这是我写的函数
import 'package:image/image.dart' as editImage;
_editImage() async {
final Face face = await _scanResults[0];
final left = face.boundingBox.left.truncate();
final right = face.boundingBox.right.truncate();
final top = face.boundingBox.top.truncate();
final bottom = face.boundingBox.bottom.truncate();
print("Boundings" + face.boundingBox.toString());
Directory d = await getExternalStorageDirectory();
DateTime date = DateTime.now();
File img = File(_path);
editImage.Image originalImage =
editImage.decodeImage(img.readAsBytesSync());
editImage.Image faceCrop =
editImage.copyCrop(originalImage, left, top, right, bottom);
final encodedImg = editImage.encodeJpg(faceCrop);
final decodedImg = await decodeImageFromList(encodedImg);
final result = await decodedImg.toByteData();
final finalPath = "${d.path}/Face_Image_${date.toIso8601String()}.png";
final finalImage = await new File(finalPath).create();
final finalResult =
result.buffer.asUint8List(result.offsetInBytes, result.lengthInBytes);
finalImage.writeAsBytesSync(finalResult);
print("Face crop finished");
}