How do you get coordinates that you can use directly

Question

I'm working on a computer vision project and the coordinates I get are not directly usable. How do you convert them?

Answer 1

Hello @sakai

Thanks for using Microsoft Q&A platform, I think you are mentioning Form Recognizer OCR API and you have questions about the value of boundingBoxes, below I will give an example to explain it so that you can convert it to the coordinate you want to use:

Example:

   'boundingBox': [  
                57.1,  
                683.3,  
                100.2,  
                683.3,  
                100.2,  
                673.3,  
                57.1,  
                673.3  
              ]  

Those values represent the vertices of the bounding box as below:

  (57.1,683.3) X1,Y1---->x2,y2(100.2,683.3)  
                  |                |  
                  |                |  
  (57.1,673.3) X4,Y4<----x3,y3(100.2,673.3)  

The (0,0) is on the bottom left as you can see.

// Azure Bounding box is like this                       
//                                                     0---->1  
//                                                    |     |  
//                                         Y          |     |  
//                                         ↑         3<----2  
//                                  Origin . → X  

If you want to measure the boundingBoxes, you can use above vertices to do the calculation.

Hope this helps!

Regards,
Yutong

-Please kindly accept the answer if you feel helpful, thanks!