java 如何从图像中读取数字？
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how to read a number from an image?
提问by Dail
I have some images that inside have a string with a number, like: "We have 3 books" I need to get 3: Is there a library in Java that can read the image and extract the number? or maybe the string then I will parse that string to find the number?
我有一些图像，里面有一个带数字的字符串，例如：“我们有 3 本书”我需要得到 3：Java 中是否有可以读取图像并提取数字的库？或者也许是字符串然后我会解析该字符串以找到数字？
Thank you
谢谢
回答by SpeedBirdNine
回答by Hilmar
with tess4jyou could try this:
使用tess4j你可以试试这个：
public static void main(final String[] args) throws Exception {
final File imageFile = new File("imageWith Digits.jpg");
final ITesseract instance = new Tesseract();
instance.setTessVariable("tessedit_char_whitelist", "0123456789");
final String result = instance.doOCR(imageFile);
System.out.println(result);
}
