https://api.flutter-io.cn/flutter/dart-ui/ImageFilter/ImageFilter.erode.html
ImageFilter.erode constructor - ImageFilter - dart:ui library - Dart API
API docs for the ImageFilter.erode constructor from Class ImageFilter from the dart:ui library, for the Dart programming language.
ui libraryimagefiltererodeconstructordart
https://www.php.net/manual/en/function.imagefilter.php
PHP: imagefilter - Manual
Applies a filter to an image
phpimagefiltermanual
https://skia.googlesource.com/skia/+/8dea7b2d1589ac6f99ea51f1fe675302111de1b2/gm/backdrop_imagefilter_croprect.cpp
gm/backdrop_imagefilter_croprect.cpp - skia - Git at Google
gmbackdropimagefiltercppgit