ml kit - Text Recognition output issues

Question

I am creating a business card app using the ml kit text recognition. I have an app this is up and working, but have found that when uploading a business card and extracting the text, but the text comes back in a mess of clumps with no spaces.

I need to literally extract the text line by line.

Is there a way to fix this?

score 0 · Answer 1 · answered Aug 21 '19 at 14:31

When the recognition operation succeeds, a FirebaseVisionText object will be passed to the success listener. A FirebaseVisionText object contains the full text recognized in the image and zero or more TextBlock objects.

Each TextBlock represents a rectangular block of text, which contains zero or more Line objects. Each Line object contains zero or more Element objects, which represent words and word-like entities (dates, numbers, and so on).

For each TextBlock, Line, and Element object, you can get the text recognized in the region and the bounding coordinates of the region.

For example:


val resultText = result.text
for (block in result.textBlocks) {
    val blockText = block.text
    val blockConfidence = block.confidence
    val blockLanguages = block.recognizedLanguages
    val blockCornerPoints = block.cornerPoints
    val blockFrame = block.boundingBox
    for (line in block.lines) {
        val lineText = line.text
        val lineConfidence = line.confidence
        val lineLanguages = line.recognizedLanguages
        val lineCornerPoints = line.cornerPoints
        val lineFrame = line.boundingBox
        for (element in line.elements) {
            val elementText = element.text
            val elementConfidence = element.confidence
            val elementLanguages = element.recognizedLanguages
            val elementCornerPoints = element.cornerPoints
            val elementFrame = element.boundingBox
        }
    }
}

Source: MLKit documentation

ml kit - Text Recognition output issues

1 Answers1