opencv quality_error ai_generated true

cv::resize: interpolation method not suitable for scaling factor

ID: opencv/resize-interpolation-error

Also available as: JSON · Markdown
80%Fix Rate
84%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
4 active — — —

Root Cause

Image resize producing artifacts due to wrong interpolation.

generic

Workarounds

  1. 92% success Use INTER_AREA for downscaling, INTER_LINEAR/CUBIC for upscaling
  2. 85% success For significant downscaling, apply Gaussian blur before resize

Dead Ends

Common approaches that don't work:

  1. Use INTER_NEAREST for everything 72% fail

    Pixelated results

  2. Always use INTER_CUBIC 68% fail

    Slow for large downscaling