Repository: flutter
Issue: Images Pixelate Using canvaskit on Some Monitors
Labels: platform-web,a: images,e: web_canvaskit,has reproducible steps,P2,found in release: 2.2,found in release: 2.6,team-web,triaged-web

I have some simple png images that get pixelated on some monitors but not others. I tried changing the `FilterQuality` to different values but to no avail. The images are of reasonable high resolution. In the screenshots below the big image in the middle is 1024x1024 and the icons below are 128X128 each. I also tried not setting any `cacheWidth` or `cacheHeight` values but nothing seems to work. 

Here are the screen shots. I've been having these issues for a while. I don't have experience in image processing so I wasn't sure that including screenshots of a resolution problem makes sense, but when I took the screenshots the issue was captured so I guess it's a good idea.

With LG monitor
![Screen Shot 1443-01-30 at 10 56 55 PM](https://user-images.githubusercontent.com/61453768/132404817-05144e99-aa25-419f-887b-f3f173ea22e0.png)

With Mac built in monitor
<img width="525" alt="Screen Shot 1443-01-30 at 10 57 35 PM" src="https://user-images.githubusercontent.com/61453768/132404843-b1fb701d-9f55-4e17-bdd7-9ee8f7156a1f.png">

Here is a screen shot of my monitors information
<img width="555" alt="Screen Shot 1443-01-30 at 10 58 26 PM" src="https://user-images.githubusercontent.com/61453768/132404900-b6eed11f-e4db-4322-a53d-00ffd15bdf7d.png">

The pixelation happens on the LG Ultrawide monitor, but not on the built in Color LCD. I also tried on some Dell monitors, and was getting pixelation as well. I don't get pixelation on my iPhone. The problem only happens with canviskit- I tried html and all is normal. 


Here is my `flutter doctor -v`

```
[✓] Flutter (Channel stable, 2.2.3, on macOS 11.2.3 20D91 darwin-x64, locale en-SA)
    • Flutter version 2.2.3 at /Users/mickymouse/dev/flutter
    • Framework revision f4abaa0735 (10 weeks ago), 2021-07-01 12:46:11 -0700
    • Engine revision 241c87ad80
    • Dart version 2.13.4

[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
    • Android SDK at /Users/mickymouse/Library/Android/sdk
    • Platform android-30, build-tools 30.0.3
    • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6915495)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 12.5.1, Build version 12E507
    • CocoaPods version 1.11.0.rc.1

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 4.1)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6915495)

[✓] IntelliJ IDEA Community Edition (version 2021.1.1)
    • IntelliJ at /Applications/Applications/IntelliJ IDEA CE.app
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart

[✓] IntelliJ IDEA Community Edition (version 2021.1.1)
    • IntelliJ at /Applications/IntelliJ IDEA CE.app
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart

[✓] VS Code (version 1.60.0)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension can be installed from:
      🔨 https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter

[✓] Connected device (1 available)
    • Chrome (web) • chrome • web-javascript • Google Chrome 92.0.4515.159

• No issues found!
```

If there is anything else I can provide let me know. 

Thank you