Mobile phone scanner control method based on visual algorithm

Abstract

The invention relates to a control method of a mobile phone scanner based on a visual algorithm and the scanner. The method comprises the following steps: (1) acquiring the resolution of a camera; (2) collecting a picture according to a frame rate fps = 20, and scaling according to a width of 500 pixels in an equal proportion; (3) performing graying processing on the picture, detecting chromatic aberration to obtain a threshold value Threshold, and performing grey whitening on the picture; (4) softening the picture by using Gaussian filtering; (5) marking a contour core point location; (6) obtaining the core point position of the contour through an approximation algorithm; (7) selecting the picture contour meeting the requirement; performing zooming reduction according to the step (5); (8) initial boundary points are used as parameters; (9) connecting the four boundaries in the clockwise direction to form a quadrangle, covering the quadrangle on the original image, setting anchor points at four boundary points respectively, and dragging; (10) drawing the length and the width of the target document based on the coordinate vector according to the four points and the length and the width of the long and wide sides; and (11) pixel projection: filling the pixels in the target range on the original picture into the new document matrix.

Description

technical field [0001] The invention belongs to the technical field of scanning, and particularly relates to a control method of a mobile phone scanner based on a visual algorithm. Background technique [0002] Due to the maturity of vision algorithms, the document scanning work within the enterprise has been completely handed over to a more convenient mobile phone, instead of a cumbersome physical scanner. Moreover, you can carry your mobile phone with you, and take photos and scans anytime, anywhere, which is more friendly to those who travel frequently. [0003] The current visual algorithm library OpenCV cross-computer platform, it is easy to integrate into the application of various platforms of the enterprise, not limited to Android, IOS, Windows, Linux, Unix and other systems. SUMMARY OF THE INVENTION [0004] The purpose of the present invention is to solve the problem that the quality scanned by the traditional scanning instrument cannot be output stably, and the...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the scanning quality of traditional scanning instruments cannot be stably output. The position of the document during scanning and the saturation of the toner will cause distortion, especially when scanning many documents in batches, the distortion rate of the subsequent scanning results is higher. , problems that affect the follow-up workflow, providing a control method for mobile phone scanners based on visual algorithms

Images