Projection interaction area positioning method based on improved straight line detection

The invention discloses a projection interaction area positioning method based on improved straight line detection, and the method comprises the following steps: S1, image collection: carrying out thegraying of an image, and carrying out the weighted averaging of RGB three components according to different weights, and obtaining a gray level image; S2, performing convolution operation on the grayscale image by using high-kernel Laplace filtering; S3, based on binaryzation of a histogram, denoising and screening each pixel by using histogram features in a window body by adopting a sliding window method; and S4, detecting the denoised image by using a Hough straight line detection algorithm, screening out four boundary lines by using the characteristics of the projection area, and realizingprojection area positioning according to the obtained four boundary lines. 本发明公开了一种基于改进型直线检测的投影交互区域定位方法，包括以下步骤：S1、图像采集，对图像进行灰度化处理，按不同权重对RGB三分量进行加权平均得到灰度图像；S2、利用高核拉普拉斯滤波对灰度化图像后进行卷积操作；S3、基于直方图的二值化，采用滑窗法，利用窗体内的直方图特征对每个像素进行去噪筛选；S