I look at the tutorial in chp 5 (Licence Plate Detection) provided in the book of Packtpub Mastering opencv with practical computer vision projects , i want to know some points on it :
1 - Why we need to focus on aspect ratio much if we already doing SVM ?
2 - Is it compulsory that we should the size of licence plate , while we are using SVM ?
3 - Why our focus is on the width and height of numbers and gap between them ?
Do the small difference between different pictures , like the sizes of number plates and difference between alphanumeric words and gap between them matters much ?