OpenCV Advent Calendar 2025

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36 followers

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Category：AI & ML & Data Science

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@hon_no_mushi

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OpenCVのAdvent Calenderです！
OpenCVに関わるならば、千客万来です。DeepでもLightでもなんでも。

ただし、「粗製濫造」な投稿はご遠慮下さい。「生成AIにこう聞いたら、こう返ってきた」だけをまとめた投稿よりも、「自分でこう試したら、こういう結果になった」という投稿をお願いします。成功しても失敗しても、精度が高くても低くても。

URL

過去のOpenCV Advent Calendar

How to join the calendar

You can join the calendar by selecting an available date and registering the URL of the article you wish to link to. If a slot is available, you can go back to a past date to join!

Series 1

Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
30	@hon_no_mushi OpenCV.jsで関数を有効化したい時に確認するべき3つのポイント 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 October 31, 2025 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 Zintなら、OpenCVでもMicro QR CodeもrMQRを簡単にサポートできますよ! 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 October 31, 2025 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 今更copyAt()がなぜ必要になったのか？copyTo()に隠された思わぬ罠 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 October 31, 2025 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 IMWRITE_GIF_LOOPとSPEEDは死んだ、もういない！だけど、cv::Animationに１つになって生きている！！ 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 October 31, 2025 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 え？嘘、私のBMP、非準拠すぎ？ OpenCV 4.13でAlphaも正しく保存できるってよ！ 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 October 31, 2025 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 [Universal Intrinsic] `vc=va+vb;` はもうダメです。突然こんな事いってごめんね。でも本当です。 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 October 31, 2025 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をAlpine Linuxへインストールしてみる 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 October 31, 2025 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 『効いてない？』で悩まない　imgcodecsがIMWRITEパラメータを本気でバリデーション 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 October 31, 2025 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 えっほえっほ、OpenCVでメタ情報扱えるって伝えなきゃ、EXIF/XMP/ICC/cICP扱えるって伝えなきゃ、えっほえっほ 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 October 31, 2025 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 【Python】あれ？ dnnモジュールのONNX推論速くなった？いや、やっぱ変わってねえかも。。。 ※2025/12/10版 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 October 31, 2025 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のログをsyglogへ出力しよう 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 October 31, 2025 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 create()を捨てよ、fit()を使おう。OpenCV5からのちょっとしたメモリ活用テクニック 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 October 31, 2025 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 【Python】OpenCVのオーディオIOでretrieve()すると、何サンプル取れるんだっけ？ 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 October 31, 2025 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 bioinspiredモジュールを使ってみた 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 October 31, 2025 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用の簡易GUIライブラリcvui 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 October 31, 2025 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 画像圧縮するベストな方法（2025） 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 October 31, 2025 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 趣味で作ったノードエディターのjsonから、デモコードを生成する趣味アプリを作った 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 October 31, 2025 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 もう(x,y)？(y,x)？で迷わない！OpenCVの引数順序ルールのおさらい 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 October 31, 2025 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	@stargalax 日本語手書き文字認識システム 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 October 31, 2025 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 詳解AVIF 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 October 31, 2025 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
Join calendar on 21 day You can also reserve a slot without registering a title or URL. Title URL Articles to be submitted are welcome on any website as well as on Qiita. 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 October 31, 2025 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	Join calendar on 22 day You can also reserve a slot without registering a title or URL. Title URL Articles to be submitted are welcome on any website as well as on Qiita. 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 October 31, 2025 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	Join calendar on 23 day You can also reserve a slot without registering a title or URL. Title URL Articles to be submitted are welcome on any website as well as on Qiita. 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 October 31, 2025 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	Join calendar on 24 day You can also reserve a slot without registering a title or URL. Title URL Articles to be submitted are welcome on any website as well as on Qiita. 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 October 31, 2025 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 OpenCV5に夢を抱いて（というまとめ） 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 October 31, 2025 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	27

@hon_no_mushi
OpenCV.jsで関数を有効化したい時に確認するべき3つのポイント
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Title
URL
You can post either your article on Qiita or your blog post.
About reserved posting
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About posting period
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@hon_no_mushi
Zintなら、OpenCVでもMicro QR CodeもrMQRを簡単にサポートできますよ!
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@hon_no_mushi
今更copyAt()がなぜ必要になったのか？copyTo()に隠された思わぬ罠
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@hon_no_mushi
IMWRITE_GIF_LOOPとSPEEDは死んだ、もういない！だけど、cv::Animationに１つになって生きている！！
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You can post either your article on Qiita or your blog post.
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@hon_no_mushi
え？嘘、私のBMP、非準拠すぎ？ OpenCV 4.13でAlphaも正しく保存できるってよ！
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@hon_no_mushi
[Universal Intrinsic] `vc=va+vb;` はもうダメです。突然こんな事いってごめんね。でも本当です。
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@hon_no_mushi
OpenCVをAlpine Linuxへインストールしてみる
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@hon_no_mushi
『効いてない？』で悩まない　imgcodecsがIMWRITEパラメータを本気でバリデーション
Overwrite
Title
URL
You can post either your article on Qiita or your blog post.
About reserved posting
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When you participate, we will assume that you have agreed to the terms of use
@hon_no_mushi
えっほえっほ、OpenCVでメタ情報扱えるって伝えなきゃ、EXIF/XMP/ICC/cICP扱えるって伝えなきゃ、えっほえっほ
Overwrite
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You can post either your article on Qiita or your blog post.
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@Kazuhito
【Python】あれ？ dnnモジュールのONNX推論速くなった？いや、やっぱ変わってねえかも。。。 ※2025/12/10版
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@hon_no_mushi
OpenCVのログをsyglogへ出力しよう
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@hon_no_mushi
create()を捨てよ、fit()を使おう。OpenCV5からのちょっとしたメモリ活用テクニック
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@Kazuhito
【Python】OpenCVのオーディオIOでretrieve()すると、何サンプル取れるんだっけ？
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@satsukiya
bioinspiredモジュールを使ってみた
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@Kazuhito
OpenCV用の簡易GUIライブラリcvui
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@fukushima1981
画像圧縮するベストな方法（2025）
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@Kazuhito
趣味で作ったノードエディターのjsonから、デモコードを生成する趣味アプリを作った
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@hon_no_mushi
もう(x,y)？(y,x)？で迷わない！OpenCVの引数順序ルールのおさらい
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@stargalax
日本語手書き文字認識システム
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@fukushima1981
詳解AVIF
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Join calendar on 21 day
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Join calendar on 22 day
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Join calendar on 23 day
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Title
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Join calendar on 24 day
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@hon_no_mushi
OpenCV5に夢を抱いて（というまとめ）
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Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
30	@hon_no_mushi OpenCV.jsで関数を有効化したい時に確認するべき3つのポイント 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 October 31, 2025 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 Zintなら、OpenCVでもMicro QR CodeもrMQRを簡単にサポートできますよ! 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 October 31, 2025 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 今更copyAt()がなぜ必要になったのか？copyTo()に隠された思わぬ罠 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 October 31, 2025 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 IMWRITE_GIF_LOOPとSPEEDは死んだ、もういない！だけど、cv::Animationに１つになって生きている！！ 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 October 31, 2025 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 え？嘘、私のBMP、非準拠すぎ？ OpenCV 4.13でAlphaも正しく保存できるってよ！ 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 October 31, 2025 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 [Universal Intrinsic] `vc=va+vb;` はもうダメです。突然こんな事いってごめんね。でも本当です。 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 October 31, 2025 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をAlpine Linuxへインストールしてみる 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 October 31, 2025 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 『効いてない？』で悩まない　imgcodecsがIMWRITEパラメータを本気でバリデーション 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 October 31, 2025 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 えっほえっほ、OpenCVでメタ情報扱えるって伝えなきゃ、EXIF/XMP/ICC/cICP扱えるって伝えなきゃ、えっほえっほ 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 October 31, 2025 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 【Python】あれ？ dnnモジュールのONNX推論速くなった？いや、やっぱ変わってねえかも。。。 ※2025/12/10版 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 October 31, 2025 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のログをsyglogへ出力しよう 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 October 31, 2025 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 create()を捨てよ、fit()を使おう。OpenCV5からのちょっとしたメモリ活用テクニック 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 October 31, 2025 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 【Python】OpenCVのオーディオIOでretrieve()すると、何サンプル取れるんだっけ？ 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 October 31, 2025 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 bioinspiredモジュールを使ってみた 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 October 31, 2025 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用の簡易GUIライブラリcvui 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 October 31, 2025 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 画像圧縮するベストな方法（2025） 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 October 31, 2025 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 趣味で作ったノードエディターのjsonから、デモコードを生成する趣味アプリを作った 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 October 31, 2025 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 もう(x,y)？(y,x)？で迷わない！OpenCVの引数順序ルールのおさらい 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 October 31, 2025 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	@stargalax 日本語手書き文字認識システム 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 October 31, 2025 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 詳解AVIF 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 October 31, 2025 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
Join calendar on 21 day You can also reserve a slot without registering a title or URL. Title URL Articles to be submitted are welcome on any website as well as on Qiita. 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 October 31, 2025 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	Join calendar on 22 day You can also reserve a slot without registering a title or URL. Title URL Articles to be submitted are welcome on any website as well as on Qiita. 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 October 31, 2025 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	Join calendar on 23 day You can also reserve a slot without registering a title or URL. Title URL Articles to be submitted are welcome on any website as well as on Qiita. 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 October 31, 2025 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	Join calendar on 24 day You can also reserve a slot without registering a title or URL. Title URL Articles to be submitted are welcome on any website as well as on Qiita. 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 October 31, 2025 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 OpenCV5に夢を抱いて（というまとめ） 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 October 31, 2025 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	27

@hon_no_mushi
OpenCV.jsで関数を有効化したい時に確認するべき3つのポイント
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@hon_no_mushi
Zintなら、OpenCVでもMicro QR CodeもrMQRを簡単にサポートできますよ!
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今更copyAt()がなぜ必要になったのか？copyTo()に隠された思わぬ罠
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IMWRITE_GIF_LOOPとSPEEDは死んだ、もういない！だけど、cv::Animationに１つになって生きている！！
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え？嘘、私のBMP、非準拠すぎ？ OpenCV 4.13でAlphaも正しく保存できるってよ！
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[Universal Intrinsic] `vc=va+vb;` はもうダメです。突然こんな事いってごめんね。でも本当です。
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@hon_no_mushi
OpenCVをAlpine Linuxへインストールしてみる
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@hon_no_mushi
『効いてない？』で悩まない　imgcodecsがIMWRITEパラメータを本気でバリデーション
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@hon_no_mushi
えっほえっほ、OpenCVでメタ情報扱えるって伝えなきゃ、EXIF/XMP/ICC/cICP扱えるって伝えなきゃ、えっほえっほ
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@Kazuhito
【Python】あれ？ dnnモジュールのONNX推論速くなった？いや、やっぱ変わってねえかも。。。 ※2025/12/10版
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@hon_no_mushi
OpenCVのログをsyglogへ出力しよう
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@hon_no_mushi
create()を捨てよ、fit()を使おう。OpenCV5からのちょっとしたメモリ活用テクニック
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@Kazuhito
【Python】OpenCVのオーディオIOでretrieve()すると、何サンプル取れるんだっけ？
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@satsukiya
bioinspiredモジュールを使ってみた
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@Kazuhito
OpenCV用の簡易GUIライブラリcvui
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@fukushima1981
画像圧縮するベストな方法（2025）
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@Kazuhito
趣味で作ったノードエディターのjsonから、デモコードを生成する趣味アプリを作った
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@hon_no_mushi
もう(x,y)？(y,x)？で迷わない！OpenCVの引数順序ルールのおさらい
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@stargalax
日本語手書き文字認識システム
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@fukushima1981
詳解AVIF
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@hon_no_mushi
OpenCV5に夢を抱いて（というまとめ）
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