Image Requirements

To assure the quality of OCR/Face Compare/... , the input image should meet the following requirements

Requirement Item	Specification
Format	PNG JPG/JPEG
Size	must not exceed 2MB, and recommended to be not less than 50KB.
Resolution	between 256 * 256 and 4096 * 4096.
Quality	clear. complete. with normal exposure. no obstructions. the image angle should be straight.