I mauising opencv 3.4.11 for android.
I get this error when i used the forward of Net function:
Mat imageBlob = Dnn.blobFromImage(frame, 0.00392, new Size(416,416),new Scalar(0, 0, 0),/*swapRB*/false, /*crop*/false);
tinyV4.setInput(imageBlob);
/* the result */
java.util.List result = new java.util.ArrayList(2);
List outputLayers = new java.util.ArrayList<>();
/* the outputs layers are 30 and 37*/
outputLayers.add(0, "yolo_30");
outputLayers.add(1, "yolo_37");
/*we are looking for layers yolo30 and yolo37, and we want to save them into result */
tinyV4.forward(result, outputLayers);
The full error:
OpenCV(3.4.11) Error: Unspecified error (Number of input channels should be multiple of 3 but got 4) in virtual bool
cv::dnn::ConvolutionLayerImpl::getMemoryShapes(const std::vector>&, int, std::vector>&, std::vector>&) const, file
/build/3_4_pack-android/opencv/modules/dnn/src/layers/convolution_layer.cpp, line 306
[ERROR:0] OPENCV/DNN: [Convolution]:(conv_0): getMemoryShapes() throws exception. inputs=1 outputs=0/1 blobs=1
[ERROR:0] input[0] = [ 1 4 510 510 ]
[ERROR:0] blobs[0] = CV_32FC1 [ 32 3 3 3 ]
[ERROR:0] Exception message: OpenCV(3.4.11) /build/3_4_pack-android/opencv/modules/dnn/src/layers/convolution_layer.cpp:306: error:
(-2:Unspecified error) Number of input channels should be multiple of 3 but got 4
in function 'virtual bool cv::dnn::ConvolutionLayerImpl::getMemoryShapes(const std::vector>&, int, std::vector>&, std::vector>&) const'
E/org.opencv.dnn: dnn::forward_14() caught cv::Exception: OpenCV(3.4.11) /build/3_4_pack-android/opencv/modules/dnn/src/layers/convolution_layer.cpp:306:
error: (-2:Unspecified error) Number of input channels should be multiple of 3 but got 4 in function 'virtual bool cv::dnn::ConvolutionLayerImpl::getMemoryShapes(const std::vector>&, int, std::vector>&, std::vector>&) const'
I tried to change the size to to 512X512, 1024x980, it not helped.
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OpenCV(3.4.11) Error: Unspecified error (Number of input channels should be multiple of 3 but got 4
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