百度人脸检测SDK-横屏无法检测问题

首先吐槽下：公司人脸识别方案选了半天，发现百度的demo做的还是很全面的，只不过只支持竖屏，但是奈何实际需求是横屏用，折腾了好几天（其实就是百度了好几天），最终没找到解决办法，于是即将放弃之际，搜索了下setPreviewDegree这个方法，终于在简书上找到了一个大神的代码片段 如下https://www.jianshu.com/p/a0a39bacf5c6，试了试，终于可以喜上眉头了。

进入正题：修改部分加粗 斜体吧

if (mIDetectStrategy ==null &&mFaceDetectRoundView !=null &&mFaceDetectRoundView.getRound() >0) {

mIDetectStrategy = FaceSDKManager.getInstance().getDetectStrategyModule();

mIDetectStrategy.setPreviewDegree(360-mPreviewDegree);

mIDetectStrategy.setDetectStrategySoundEnable(mIsEnableSound);

Rect detectRect = FaceDetectRoundView.getPreviewDetectRect(mDisplayWidth,mPreviewWidth,mPreviewHight);

mIDetectStrategy.setDetectStrategyConfig(mPreviewRect, detectRect,this);

}

然后是 在FaceModule.java  的faceTrackerDecode方法中

private FaceInfo[] faceTrackerDecode(byte[] imageData,int imageWidth,int imageHeight) {

FaceInfo[] faces =null;

if (mArgbData ==null ||

(imageWidth * imageHeight) != (mImageWidth *mImageHeight)) {

mArgbData =new int[imageWidth * imageHeight];

mImageWidth = imageWidth;

mImageHeight = imageHeight;

}

long startTime = System.nanoTime();

if (FaceSDK.getAuthorityStatus() ==0) {

FaceSDK.getARGBFromYUVimg(imageData,mArgbData,

imageWidth, imageHeight,

360 -mDegree,1);

// rows=768-cols=432

            FaceTracker.ErrCode errorCode =mFaceTracker.faceVerification(

mArgbData,

imageWidth, imageHeight,

FaceSDK.ImgType.ARGB,

FaceTracker.ActionType.RECOGNIZE);

mErrCode = errorCode.ordinal();

faces =mFaceTracker.get_TrackedFaceInfo();

long endingTime = System.nanoTime();

Float fps =1000000000.0f / (endingTime - startTime +1);

if (faces !=null && faces.length >0) {

//                Log.e(TAG, "face decode fps " + fps + "-" + errorCode.name());

                if (mErrCode == FaceTracker.ErrCode.OK.ordinal()) {

mSaveFaceArgbData =mArgbData;

}

}else {

//                Log.e(TAG, "face decode " + errorCode.name());

            }

}

return faces;

}

上面删除线的部分替换为

int argb = FaceSDK.getARGBFromYUVimg(imageData,mArgbData, imageWidth, imageHeight,mDegree,0);

Log.i(TAG,"argb=" + argb);// 旋转了0度000000000000000000。高宽需要替换,横屏状态调换宽高

if (mDegree %180 ==0) {

int temp = imageWidth;

imageWidth = imageHeight;

imageHeight = temp;

}//rows=768-cols=432

FaceTracker.ErrCode

errorCode =mFaceTracker.faceVerification(mArgbData, imageWidth,

imageHeight, FaceSDK.ImgType.ARGB, FaceTracker.ActionType.RECOGNIZE);

就可以啦