java处理数字图像，包括镜像、中值滤波、线形灰度变化、图像平滑、图像模糊、图像还原、锐化、量化、二值化图像、边缘检测等-java digital image processing, including image, median filtering, linear gray-scale changes, image smoothing, image blurring, image reduction, sharpening, to quantify the binary image, edge

通过指尖按住摄像头，图像变化获取帧数据来检测心跳-Fingertip holding down the camera, the image acquisition frame data to detect changes in heartbeat