[Android] RNImage resize causes very long images to become blurry
Open
Nobody has claimed this yet.
Component: Image
Issue: Author Provided Repro
Platform: Android
- Dominant language
- C++
- Stars
- 127k
- Forks
- 25.3k
- Avg merge
- 1d 23h
- Merged PRs (30d)
- 4
Description
Description
- RNImage causes very long images to become blurry when resized
- I know it uses Fresco under the hood and Fresco has a limitation of up to 2K resolution, but at least it accepts a configurable max size
- Also recent Android devices can draw much larger than 2K
- I think React Native Image should accept a max size option too
- Or we can update Fresco max size limit
Steps to reproduce
- Load a very large image with RNImage
React Native Version
0.82.1
Affected Platforms
Runtime - Android
Output of npx @react-native-community/cli info
System:
OS: macOS 26.1
CPU: (8) arm64 Apple M1 Pro
Memory: 212.97 MB / 16.00 GB
Shell:
version: "5.9"
path: /bin/zsh
Binaries:
Node:
version: 22.18.0
path: /Users/hoseongson/.local/share/mise/installs/node/22.18.0/bin/node
Yarn:
version: 1.22.19
path: /usr/local/bin/yarn
npm:
version: 10.9.3
path: /Users/hoseongson/.local/share/mise/installs/node/22.18.0/bin/npm
Watchman:
version: 2025.11.10.00
path: /opt/homebrew/bin/watchman
Managers:
CocoaPods:
version: 1.16.2
path: /Users/hoseongson/.local/share/mise/installs/ruby/3.3.0/bin/pod
SDKs:
iOS SDK:
Platforms:
- DriverKit 25.1
- iOS 26.1
- macOS 26.1
- tvOS 26.1
- visionOS 26.1
- watchOS 26.1
Android SDK: Not Found
IDEs:
Android Studio: 2025.2 AI-252.25557.131.2521.14432022
Xcode:
version: 26.1.1/17B100
path: /usr/bin/xcodebuild
Languages:
Java:
version: 17.0.17
path: /Users/hoseongson/.local/share/mise/installs/java/corretto-17.0.17.10.1/bin/javac
Ruby:
version: 3.3.0
path: /Users/hoseongson/.local/share/mise/installs/ruby/3.3.0/bin/ruby
npmPackages:
"@react-native-community/cli":
installed: 20.0.0
wanted: 20.0.0
react:
installed: 19.1.1
wanted: 19.1.1
react-native:
installed: 0.82.1
wanted: 0.82.1
react-native-macos: Not Found
npmGlobalPackages:
"*react-native*": Not Found
Android:
hermesEnabled: true
newArchEnabled: true
iOS:
hermesEnabled: Not found
newArchEnabled: false
Stacktrace or Logs
N/A
MANDATORY Reproducer
https://github.com/sookcha/RnTallImage
Screenshots and Videos
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the RNImage Android implementation and the Fresco ResizeOptions limitation described in the issue. Run the mandatory reproducer at https://github.com/sookcha/RnTallImage with React Native 0.82.1 and compare resizing of very long images. Done should mean the image no longer becomes unexpectedly blurry, with the intended maximum-size behavior defined and covered by an appropriate test.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- android, react-native
- Domain
- mobile, performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100