Method and mobile terminal for automatically correcting photo shooting angle according to gravitational acceleration

Abstract

The invention discloses a method and mobile terminal for automatically correcting a photo shooting angle according to gravitational acceleration. The method includes the steps that A, the mobile terminal receives an operation instruction of a user to enter a photo shooting mode, meanwhile starts the automatic correcting function and automatically records the shooting angle of the mobile terminal in the photo shooting process; B, the deflection angle between the shooting angle of the mobile terminal in the photo shooting process and a preset initial angle is calculated; C, when photos are previewed, the mobile terminal automatically rotates the previewed photos to the preset initial angle of the mobile terminal according to the deflection angle. The method that the gravitational acceleration g is taken as the reference direction, the deflection angle when the mobile terminal shoots the photos is automatically recorded, and when previewed, the photos are retrograde rotated to the initial angle according to the deflection angle is adopted. Through the method, the rotation angles of the photos can be corrected automatically, shooting is not limited by the shooting angle and can be achieved at multiple angles freely, the shooting difficulty is reduced, and the expectant shooting effect can be achieved easily.

Description

technical field [0001] The invention relates to the field of photographing by a mobile terminal, in particular to a method for automatically correcting the photographing angle according to the acceleration of gravity. Background technique [0002] With the popularity of portable mobile terminals such as smart phones and tablet computers, their various functional applications are also very popular, and the camera function is one of the most important and frequently used functions. However, in the process of taking pictures, due to unstable placement or hand-holding angle problems, or situations such as wanting to achieve a certain shooting effect, the mobile terminal has a certain tilt angle when taking pictures. In this case, the photos taken in this case can only be rotated at fixed angles such as 0 degrees, 90 degrees, and 180 degrees when previewing, and can be automatically rotated according to the inclination angle when shooting. At the same time, in order to ensure th...

AI Technical Summary

Problems solved by technology

At the same time, in order to ensure that the photos taken are not tilted, the user needs to keep the camera device horizontal or vertical to the horizon as much as possible when taking pictures, and cannot shoot freely at any angle

However, since the handheld device does not have a fixed frame, it needs to be stabilized by the user's hands, so the shooting angle will still be affected to a certain extent, and it is difficult to achieve the desired effect

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