title: Crop and OCR label from photo
body: <p>I need to OCR some specific information from labels which are mostly of known layouts. The source of the data is photos which I know can be tricky. The data can be barcodes (easy), short text (mostly known words which can be learned over time as they repeat) and numbers (set format and length).</p>
  
  <p>I've done some research and it seems that Tesseract can do what I want on multiple platforms but I have a few questions.</p>
  
  <p>1) How do I crop only the relevant label. I did some very basic signal processing for a university course a long time ago. I suppose this isn't too difficult. Any good libraries for it?</p>
  
  <p>2) Since I know the layout, is there a way to OCR the labels by section for each specific 
  value needed?</p>
  
  <p>3) Any other tips on pre-processing the pictures?</p>
  
  <p>4) Is Tesseract the right tool for the job?</p>