テキスト認識

Cloud Vision のテキスト認識 API を使用すると、100 以上の言語と文字のテキストを認識できます。

このクラウドベースの API を使用すると、面倒なデータ入力を自動化したり、ドキュメントの写真からテキストを抽出したりできます。これにより、アクセシビリティの向上やドキュメントの翻訳を行うことができます。

iOS+ Android

主な機能

高精度のテキスト認識

Firebase ML のテキスト認識 API は、Google Cloud の業界トップクラスの画像分析機能を利用しています。

Cloud Vision API のデモをお試しください。

写真やドキュメントに最適

写真内のまばらなテキスト(道路標識の写真や名刺など)を認識し、ドキュメントの写真内の密度の高いテキストを認識するために最適化された API。

広範な言語をサポート

100 以上の言語とスクリプトでテキストを認識します。

限定的なら料金なしで使用可能

毎月最初の 1,000 回の使用には料金がかかりません。詳しくは料金をご覧ください。

実行結果の例

まばらなテキスト

写真: Dietmar Rabich / Wikimedia Commons / "Düsseldorf, Wege der parlamentarischen Demokratie -- 2015 -- 8123" / CC BY-SA 4.0

結果の一部

認識されたテキスト
テキスト Wege der
parlamentarischen
Demokratie
境界ボックス / フレーム Rect(Android)または CGRect(iOS+)
ブロック数 (1 ブロック)
ブロック 0
テキスト Wege der
parlamentarischen
Demokratie
境界ボックス / フレーム Rect(Android)または CGRect(iOS+)
認識された言語コード de
(3 本の線)
線 0
テキスト Wege der
境界ボックス / フレーム Rect(Android)または CGRect(iOS+)
認識された言語コード de
要素 (2 個の要素)
要素 0
テキスト Wege

ドキュメント テキスト

結果の一部

全文
テキスト
361
DR. SEWARD'S DIARY
Professor. He had evidently expected some such call, for
I found him dressed in his room. His door was ajar, so that
he could hear the opening of the door of our room. He
came at once, as he passed into the room, he asked Mina
if the others might come, too.
"No," she said quite simply, "it will not be necessary.
You can tell them just as well. I must go with you on your
journey."
Dr. Van Helsing was as startled as I was. After a mo-
ment's pause he asked :-
"But why?"
"You must take me with you. I am safer with you, and
you shall be safer, too."
"But why, dear Madam Mina? You know that your
safety is our solemnest duty. We go into danger, to which
you are, or may be, more liable than any of us from
from circumstances--things that have been." He paused,
embarrassed.
As she replied, she raised her finger and pointed to her
forehead:
"I know. That is why I must go. I can tell you now,
whilst the sun is coming up; I may not be able again. I
know that when the Count wills me I must go. I know that
if he tells me to come in secret, I must come by wile; by
any device to hoodwink—even Jonathan." God saw the
look that she turned on me as she spoke, and if there be
indeed a Recording Angel that look is noted to her ever-
lasting honour. I could only clasp her hand. I could not
speak; my emotion was too great for even the relief of
tears. She went on
"You men are brave and strong. You are strong in your
numbers, for you can defy that which would break down
the human endurance of one who had to guard alone. Be-
sides, I may be of service, since you can hypotise me and
so learn that which even I myself do not know." Dr. Van
Helsing said very gravely
"Madam Mina, you are, as always, most wise. You shall
with us come; and together we shall do that which we go
forth to achieve." When he had spoken, Mina's long spell
of silence made me look at her. She had fallen back on her
ブロック数 (2 ブロック)
ブロック 1
テキスト
DR. SEWARD'S DIARY
Professor. He had evidently expected some such call, for
I found him dressed in his room. His door was ajar, so that
he could hear the opening of the door of our room. He
came at once, as he passed into the room, he asked Mina
if the others might come, too.
"No," she said quite simply, "it will not be necessary.
You can tell them just as well. I must go with you on your
journey."
Dr. Van Helsing was as startled as I was. After a mo-
ment's pause he asked :-
"But why?"
"You must take me with you. I am safer with you, and
you shall be safer, too."
"But why, dear Madam Mina? You know that your
safety is our solemnest duty. We go into danger, to which
you are, or may be, more liable than any of us from
from circumstances--things that have been." He paused,
embarrassed.
As she replied, she raised her finger and pointed to her
forehead:
"I know. That is why I must go. I can tell you now,
whilst the sun is coming up; I may not be able again. I
know that when the Count wills me I must go. I know that
if he tells me to come in secret, I must come by wile; by
any device to hoodwink—even Jonathan." God saw the
look that she turned on me as she spoke, and if there be
indeed a Recording Angel that look is noted to her ever-
lasting honour. I could only clasp her hand. I could not
speak; my emotion was too great for even the relief of
tears. She went on
"You men are brave and strong. You are strong in your
numbers, for you can defy that which would break down
the human endurance of one who had to guard alone. Be-
sides, I may be of service, since you can hypotise me and
so learn that which even I myself do not know." Dr. Van
Helsing said very gravely
"Madam Mina, you are, as always, most wise. You shall
with us come; and together we shall do that which we go
forth to achieve." When he had spoken, Mina's long spell
of silence made me look at her. She had fallen back on her
信頼度 0.98
境界ボックス / フレーム Rect(Android)または CGRect(iOS+)
認識された言語コード en
段落 10 段落
段落 1
テキスト
"No," she said quite simply, "it will not be necessary.
You can tell them just as well. I must go with you on your
journey."
信頼度 0.97
境界ボックス / フレーム Rect(Android)または CGRect(iOS+)
認識された言語コード en
単語 (34 単語)
単語 7
テキスト
simply
信頼度 0.99
境界ボックス / フレーム Rect(Android)または CGRect(iOS+)
認識された言語コード en
記号 (6 個の記号)
記号 0
テキスト
s
信頼度 0.97
境界ボックス / フレーム Rect(Android)または CGRect(iOS+)
認識された言語コード en