Issues

• cv::sort and cv::sortIdx fail with "func != 0" for all 5.x depths

  bug
  opencv/opencv#30505 · Filter by author sshivensolanki opened on Oct 24, 2026
  1

• dnn: ENGINE_NEW about 5.5x slower than ENGINE_CLASSIC on aarch64 (Graviton2) for a VGG-19 ONNX model, near parity on x86

  opencv/opencv#30504 · Filter by author Marc-Dvci opened on Oct 24, 2026

• LightGlueMatcher on Windows (opencv-python 5.0.0.93): a later match() call with more keypoints aborts the process (0xC0000409)

  opencv/opencv#30502 · Filter by author tritonsan opened on Oct 24, 2026

• Corresponding FFmpeg source and build recipe for binary pinned by OpenCV 5.0.0

  opencv/opencv#30500 · Filter by author Doublzzz opened on Oct 24, 2026

• cv::pow with a non-integer power writes past the end of dst for non-float depths (4.x)

  bug
  opencv/opencv#30495 · Filter by author sshivensolanki opened on Oct 23, 2026

• License clarification for exact ResNet-10 FP16 Caffe face-detector weights and commercial redistribution

  opencv/opencv#30487 · Filter by author ikbot1973 opened on Oct 23, 2026

• cv::solve(DECOMP_LU/DECOMP_QR) solves the transposed system when the LAPACK HAL declines

  bugcategory: core
  opencv/opencv#30477 · Filter by author Prasadayus opened on Oct 23, 2026 · 5.1
  

• cv::countNonZero and cv::hasNonZero throw "func != 0" for CV_8F_E4M3FN and CV_8F_E4M3FNUZ (5.x)

  bugcategory: core
  opencv/opencv#30461 · Filter by author sshivensolanki opened on Oct 22, 2026 · 5.1

• 5.x: warpAffine INTER_NEAREST picks different pixels depending on the image type

  bug
  opencv/opencv#30459 · Filter by author pulk17 opened on Oct 22, 2026

• imgcodecs(avif): add support for alpha channel quality control

  feature
  opencv/opencv#30451 · Filter by author Kumataro opened on Oct 22, 2026

• core(persistence): YAML FileStorage fails to round-trip and parse \xNN / \OOO string escape sequences

  bug
  opencv/opencv#30442 · Filter by author RS-ITACHI opened on Oct 21, 2026

• cv::norm(NORM_L2 / NORM_L2SQR) returns negative / NaN for CV_16S and CV_32S at the type minimum

  bugcategory: core
  opencv/opencv#30413 · Filter by author sshivensolanki opened on Oct 20, 2026 · 4.15.0
  1

• cv::resize and cv::cuda::resize produces different results.

  bug
  opencv/opencv#30384 · Filter by author kopietz-dev opened on Oct 18, 2026
  4

• photo: CalibrateDebevec curve offset depends on the build (flaky Photo_CalibrateDebevec.regression) 🤖🤖🤖

  opencv/opencv#30376 · Filter by author kari-pikkarainen opened on Oct 17, 2026

• Filter and morphology HAL paths run on one core on the AWS Graviton4 Cloud Optimized OpenCV image at 12 MP

  category: imgproc
  opencv/opencv#30373 · Filter by author nguefackuriel opened on Oct 17, 2026
  2

• Support CV_16F image inputs in linear filtering 🤖🤖🤖

  opencv/opencv#30362 · Filter by author ternaus opened on Oct 17, 2026

• Support CV_16F RGB color operations 🤖🤖🤖

  opencv/opencv#30361 · Filter by author ternaus opened on Oct 17, 2026

• Support CV_16F erosion and dilation 🤖🤖🤖

  opencv/opencv#30359 · Filter by author ternaus opened on Oct 17, 2026

• Windows FFmpeg plugin: libaom is built with AOM_TARGET_CPU=generic (no SIMD), so AV1 decodes 4-5x slower than it should

  category: build/installcategory: 3rdparty
  opencv/opencv#30343 · Filter by author olinesn opened on Oct 16, 2026 · 5.1
  

• FileStorage::release() leaks a delayed Base64 sequence and keeps the public state; unbalanced endWriteStruct() corrupts the write stack

  bugcategory: core
  opencv/opencv#30338 · Filter by author GeekQAQ opened on Oct 16, 2026 · 5.1

• cv::inRange produces incorrect masks for fractional and out-of-range scalar bounds

  bug
  opencv/opencv#30278 · Filter by author Mohit-25-tech opened on Oct 13, 2026
  1

• cv::fisheye::calibrate fails on wide-angle fisheye data

  bugcategory: calib3d
  opencv/opencv#30246 · Filter by author sergiud opened on Oct 11, 2026 · 4.15.0

• Feature: Support CV_16F in medianBlur 🤖🤖🤖

  opencv/opencv#30217 · Filter by author ternaus opened on Oct 10, 2026

• Feature: Support CV_16F in resize 🤖🤖🤖

  category: imgprocfeature
  opencv/opencv#30216 · Filter by author ternaus opened on Oct 10, 2026

• imgproc: ~5x regression in in-place MORPH_OPEN with tiled FilterEngine in 4.14.0 🤖🤖🤖

  opencv/opencv#30215 · Filter by author citrus-japonica opened on Oct 10, 2026
  2