图像扭曲之波浪扭曲

源码：

void wave_sine(cv::Mat& src,cv::Mat& dst,double amplitude,double wavelength)
{dst.create(src.rows, src.cols, CV_8UC3);dst.setTo(0);double xAmplitude = amplitude;double yAmplitude = amplitude;double xWavelength = wavelength;double yWavelength = wavelength;for (int h = 0; h < dst.rows; h ++) {double fh = h / yWavelength;fh = sin(fh);fh = h + yAmplitude * fh;int nh = floor(fh);if (nh < 0 || nh > dst.rows - 1)nh = h;for (int w = 0; w < dst.cols; w ++) {double fw = w / xWavelength;//sinefw = sin(fw);fw = w + xAmplitude * fw;int nw = floor(fw);if (nw < 0 || nw > dst.cols - 1)nw = w;dst.at<Vec3b>(h, w)[0] = src.at<Vec3b>(nh, nw)[0];dst.at<Vec3b>(h, w)[1] = src.at<Vec3b>(nh, nw)[1];dst.at<Vec3b>(h, w)[2] = src.at<Vec3b>(nh, nw)[2];}}
}

原图：

 当amplitude = 22,wavelength=30时的效果：