[英]Tesseract in iOS (Swift) - How to Separate Text and Numbers in UITextField?
I have a Swift-based application that currently implements the Tesseract OCR framework (similar to the form in this tutorial: http://www.raywenderlich.com/93276/implementing-tesseract-ocr-ios ). 我有一个基于Swift的应用程序,该应用程序当前实现了Tesseract OCR框架(类似于本教程中的表格: http : //www.raywenderlich.com/93276/implementing-tesseract-ocr-ios )。 So upon taking a picture and employing Tesseract, I obtain the following output in a UITextField object:
因此,在拍照并使用Tesseract时,我在UITextField对象中获得以下输出:
Subtotal 155.60
Tax 14.02
Total 169.82
So now I would like to separate the text from the numbers in the UITextField. 所以现在我想将文本与UITextField中的数字分开。 I was considering using the "contain" function built into Swift on a matrix containing all values in price format ([0.01 0.02, etc.]) but this will only return a boolean as outlined in this post ( How to have a textfield scan for all values in an array individually in swift? ).
我正在考虑在包含价格格式的所有值的矩阵([0.01 0.02等])上使用Swift内置的“包含”功能,但这只会返回本文所述的布尔值( 如何进行文本字段扫描)迅速将数组中的所有值单独添加? )。 Does anyone have any suggestions on how to do this?
有人对此有任何建议吗? Cheers!
干杯!
Tesseract Implementation Tesseract实施
func performImageRecognition(image: UIImage)
// 0
// 1
let tesseract = G8Tesseract()
// 2
tesseract.language = "eng"
// 3
tesseract.engineMode = .TesseractCubeCombined
// 4
tesseract.pageSegmentationMode = .Auto
// 5
tesseract.maximumRecognitionTime = 60.0
// 6
tesseract.image = image.g8_blackAndWhite()
tesseract.recognize()
// 7
textView.text = tesseract.recognizedText
textView.editable = true
Sounds like you might want to look into using Regular Expressions 听起来您可能想研究使用正则表达式
func seperate (text: String) -> (text: String?, value: String?) {
// You might want to do an extra check here to ensure the whole string is valid
// i.e., nothing in between the two parts of the string
let textMatch = text.rangeOfString("^([A-Z]|[a-z])+", options: .RegularExpressionSearch)
let priceMatch = text.rangeOfString("[0-9]*.[0-9]{2}$", options: .RegularExpressionSearch)
// You might want to adjust regex to handle price edge cases, such as 15 (rather than 15.00) etc
if let textMatch = textMatch, priceMatch = priceMatch {
let textValue = text.substringWithRange(textMatch)
let priceValue = text.substringWithRange(priceMatch)
return(textValue, priceValue)
} else {
return (nil, nil)
}
}
seperate("Subtotal 155.60") // -> Subtotal, 155.60
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