var data = {
            filepath: '',//待展平图片路径，为空时，拍照并展平，为本地图片全路径时，对图片展平
            rotate: 0,//旋转角度
            devIndex: devIndex,// 摄像头索引
            cutPage: 0,
            autoFlat: {
                "flat": "1",
                "leftFilePath": "D://testleft.jpg",
                "rightFilePath": "D://testright.jpg",
                "removeFinger": "1",
                "doublePage": "1"
            }
        }
        webCamera.autoFlat(data, function (data) {

        }, function (err) {

        })