Certificate image cutting method and system

Abstract

The invention provides a certificate image cutting method and a system. The method comprises the following steps of: reading a certificate image and finding pupil positions of a portrait in the certificate image; determining a head position of the portrait in the certificate image according to the pupil positions; determining a lower jaw position and two ear positions of the portrait in the certificate image according to the pupil positions; determining a cutting region according to the determined head position, lower jaw position and two ear positions; and cutting the certificate image according to the determined cutting region. According to the certificate image cutting method and the system, disclosed by the invention, the disadvantage of manually selecting the cutting region to cause low efficiency in a traditional certificate manufacturing process is overcome; the automatic cutting of the certificate image based on multi-point checking and positioning is realized; the certificateimage cutting region can be rapidly, efficiently and accurately positioned so as to automatically cut out a photo meeting the requirements; and therefore, the certificate image cutting method and thesystem can be widely applied to automatically cutting out the certificate image meeting the requirements by self-help photographing equipment, and can also help non-professional ordinary people to have the convenience effect of photographing a certificate photo by oneself.

Description

technical field [0001] The invention relates to the field of computer software image processing, in particular to a license image cropping method and a license image cropping system. Background technique [0002] When applying for statutory documents, such as passports, visas, travel permits, driver's licenses, ID cards and other documents, the issuing authority will require the applicant to submit the applicant's personal and recent bareheaded electronic photos at the same time when submitting the application materials, and in the background, pixels There are strict technical requirements in terms of size, size, color, expression, posture, and clothing. Moreover, due to different regions and types of certificates, the requirements for photo specifications will also be different. For example, Guangdong entry-exit certificates require the portrait to be horizontally centered within the rectangular frame of the photo, and the overall image length and width specifications are: ...

AI Technical Summary

Problems solved by technology

According to this processing method, professional operators with a certain image processing foundation must use professional software to manually cut, which is inefficient and inconvenient for ordinary people to master; similarly, because the existing method is too dependent on manual work, the efficiency is not high. High, cannot be applied to the needs of automatic cropping of self-service camera equipment, can not meet the development requirements of self-service equipment to automatically crop out qualified license images, and cannot be extended to the application needs of ordinary people to self-service photo ID photos

As a result, when making ID photos, the clipping area of ​​the ID image cannot be quickly and accurately located, and the production efficiency of ID photos is low, which seriously affects the collection service of ID photos

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