Advent Calendar 2020 / Library & Framework

OpenCV Advent Calendar 2020

Participant14People

Subscriber105People

687

Category：Library & Framework

Creator：

@dandelion1124

2020年もOpenCVのライセンスがApache 2になったり、OpenCV AI Kitのファンディングが開始されたりと変化の多い年になりました。ということで今年も小ネタからディープなネタまで記事を募集します！また、記事本体はQiita以外に投稿してもらっても問題ありません。

過去のOpenCV Advent Calendar

Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
29	30	@dandelion1124 cv::cuda::BufferPoolを使ってみる Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@tomoaki_teshima 対応点3点ではHomographyは求まらない Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@hon_no_mushi はじめてのG-API(文字描画編) Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@fukushima1981 OpenCVの並列化フレームワークの謎挙動 Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@john-rocky iOSでOpenCV Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use
@tomoaki_teshima OpenCVの丸め誤差bit-exactnessについて Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@dandelion1124 OpenCVのロギング機能 Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@dandelion1124 OpenCVのcudaoptflowモジュールからNVIDIA Optical Flow SDKを使う Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@kounoike やっぱり Wasmは C++!!! ～Wasm/EmscriptenでOpenCVを使う～ Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@kounoike OpenCVがWebカメラであなたの顔を画像として取得するまでの仕組み Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@fukushima1981 OpenCV4.5.4ビルドログ（Windows＋Visual Studio2019） Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@Kazuhito OpenCVでのデモの見栄えを工夫したまとめ(ディープラーニング系) Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use
@shinnkun アイトラッカー作ってみた． Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@UnaNancyOwen OpenCVのDNNモジュールで深度推定してみる Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@satsukiya CUDAを使ってCPU vs GPUしたった Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@hon_no_mushi OpenCV 4とOpenCV 5の共存はメンドクサイ（できるけど） Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@shimat OpenCVモジュールの依存関係 Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@takmin PyTorchで学習したモデルをOpenCVで使う (Custom Layer編) Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@hon_no_mushi putText()関数でtruetype fontを使ったテキスト描画ができるようになりました！ Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use
@fukushima1981 OpenCV4.5 コンパイルログ（Windows Visual Studio2019） Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@fukushima1981 OpenCVのK-meansを高速化する Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@tomoaki_teshima OpenCVをCUDA付きでビルドする際にサポートされる範囲 Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@dandelion1124 OpenCV AI Kitの到着に備えよう Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@tetsu5902 SONY製LiDARのDepthをPCで取得 Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@shiro-kuma ラズパイ3のGPUでOpenCVを動かす Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	26

@dandelion1124
cv::cuda::BufferPoolを使ってみる
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@tomoaki_teshima
対応点3点ではHomographyは求まらない
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@hon_no_mushi
はじめてのG-API(文字描画編)
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@fukushima1981
OpenCVの並列化フレームワークの謎挙動
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@john-rocky
iOSでOpenCV
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@tomoaki_teshima
OpenCVの丸め誤差bit-exactnessについて
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@dandelion1124
OpenCVのロギング機能
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@dandelion1124
OpenCVのcudaoptflowモジュールからNVIDIA Optical Flow SDKを使う
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@kounoike
やっぱり Wasmは C++!!! ～Wasm/EmscriptenでOpenCVを使う～
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@kounoike
OpenCVがWebカメラであなたの顔を画像として取得するまでの仕組み
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@fukushima1981
OpenCV4.5.4ビルドログ（Windows＋Visual Studio2019）
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@Kazuhito
OpenCVでのデモの見栄えを工夫したまとめ(ディープラーニング系)
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@shinnkun
アイトラッカー作ってみた．
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@UnaNancyOwen
OpenCVのDNNモジュールで深度推定してみる
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@satsukiya
CUDAを使ってCPU vs GPUしたった
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@hon_no_mushi
OpenCV 4とOpenCV 5の共存はメンドクサイ（できるけど）
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@shimat
OpenCVモジュールの依存関係
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@takmin
PyTorchで学習したモデルをOpenCVで使う (Custom Layer編)
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@hon_no_mushi
putText()関数でtruetype fontを使ったテキスト描画ができるようになりました！
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@fukushima1981
OpenCV4.5 コンパイルログ（Windows Visual Studio2019）
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@fukushima1981
OpenCVのK-meansを高速化する
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@tomoaki_teshima
OpenCVをCUDA付きでビルドする際にサポートされる範囲
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@dandelion1124
OpenCV AI Kitの到着に備えよう
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@tetsu5902
SONY製LiDARのDepthをPCで取得
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@shiro-kuma
ラズパイ3のGPUでOpenCVを動かす
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Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
29	30	@dandelion1124 cv::cuda::BufferPoolを使ってみる Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@tomoaki_teshima 対応点3点ではHomographyは求まらない Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@hon_no_mushi はじめてのG-API(文字描画編) Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@fukushima1981 OpenCVの並列化フレームワークの謎挙動 Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@john-rocky iOSでOpenCV Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use
@tomoaki_teshima OpenCVの丸め誤差bit-exactnessについて Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@dandelion1124 OpenCVのロギング機能 Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@dandelion1124 OpenCVのcudaoptflowモジュールからNVIDIA Optical Flow SDKを使う Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@kounoike やっぱり Wasmは C++!!! ～Wasm/EmscriptenでOpenCVを使う～ Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@kounoike OpenCVがWebカメラであなたの顔を画像として取得するまでの仕組み Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@fukushima1981 OpenCV4.5.4ビルドログ（Windows＋Visual Studio2019） Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@Kazuhito OpenCVでのデモの見栄えを工夫したまとめ(ディープラーニング系) Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use
@shinnkun アイトラッカー作ってみた． Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@UnaNancyOwen OpenCVのDNNモジュールで深度推定してみる Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@satsukiya CUDAを使ってCPU vs GPUしたった Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@hon_no_mushi OpenCV 4とOpenCV 5の共存はメンドクサイ（できるけど） Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@shimat OpenCVモジュールの依存関係 Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@takmin PyTorchで学習したモデルをOpenCVで使う (Custom Layer編) Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@hon_no_mushi putText()関数でtruetype fontを使ったテキスト描画ができるようになりました！ Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use
@fukushima1981 OpenCV4.5 コンパイルログ（Windows Visual Studio2019） Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@fukushima1981 OpenCVのK-meansを高速化する Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@tomoaki_teshima OpenCVをCUDA付きでビルドする際にサポートされる範囲 Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@dandelion1124 OpenCV AI Kitの到着に備えよう Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@tetsu5902 SONY製LiDARのDepthをPCで取得 Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	@shiro-kuma ラズパイ3のGPUでOpenCVを動かす Overwrite Title URL You can post either your article on Qiita or your blog post. About reserved posting If you register a secret article by the day before the same day, it will be automatically published around 7:00 on the same day. About posting period Only articles submitted after November 1 of the year can be registered. (Secret articles can be registered anytime articles are posted.) When you participate, we will assume that you have agreed to the terms of use	26

@dandelion1124
cv::cuda::BufferPoolを使ってみる
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@tomoaki_teshima
対応点3点ではHomographyは求まらない
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@hon_no_mushi
はじめてのG-API(文字描画編)
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@fukushima1981
OpenCVの並列化フレームワークの謎挙動
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@john-rocky
iOSでOpenCV
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@tomoaki_teshima
OpenCVの丸め誤差bit-exactnessについて
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@dandelion1124
OpenCVのロギング機能
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@dandelion1124
OpenCVのcudaoptflowモジュールからNVIDIA Optical Flow SDKを使う
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@kounoike
やっぱり Wasmは C++!!! ～Wasm/EmscriptenでOpenCVを使う～
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@kounoike
OpenCVがWebカメラであなたの顔を画像として取得するまでの仕組み
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@fukushima1981
OpenCV4.5.4ビルドログ（Windows＋Visual Studio2019）
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@Kazuhito
OpenCVでのデモの見栄えを工夫したまとめ(ディープラーニング系)
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@shinnkun
アイトラッカー作ってみた．
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@UnaNancyOwen
OpenCVのDNNモジュールで深度推定してみる
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@satsukiya
CUDAを使ってCPU vs GPUしたった
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@hon_no_mushi
OpenCV 4とOpenCV 5の共存はメンドクサイ（できるけど）
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@shimat
OpenCVモジュールの依存関係
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@takmin
PyTorchで学習したモデルをOpenCVで使う (Custom Layer編)
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@hon_no_mushi
putText()関数でtruetype fontを使ったテキスト描画ができるようになりました！
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@fukushima1981
OpenCV4.5 コンパイルログ（Windows Visual Studio2019）
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@fukushima1981
OpenCVのK-meansを高速化する
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@tomoaki_teshima
OpenCVをCUDA付きでビルドする際にサポートされる範囲
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@dandelion1124
OpenCV AI Kitの到着に備えよう
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@tetsu5902
SONY製LiDARのDepthをPCで取得
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@shiro-kuma
ラズパイ3のGPUでOpenCVを動かす
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