Input Requirements

Input data for the CARS API subsystem are images. The image requirements are presented in Table 1.

Table 1. Image requirements

Parameter	Requirements
Image resolution	- Vehicle detection: from 100x100 px to 1920x1080 px
	- LP detection: from 20x100 px to 105x512 px
	- LP attribute recognition: from 50x250 px to 1920x1080 px
	- Vehicle attribute recognition: from 100x100 px to 1920x1080 px
Maximum file size	3 MB
Image color	Color or black and white image
Image format	JPEG or PNG, encoded in Base64 without EXIF tags
Image composition	- Vehicle and LP must be fully visible (not blocked by other objects)
	- When recognizing vehicle attributes, the image should not contain more than one vehicle
	- LP should occupy more than 90% of the image area when recognizing LP attributes