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Questions - mat

How can I replace transparent part of image to white in OpenCV C++?

I am trying to erode and dilate images but the images that are getting sent are transparent. So that part is getting replaced by black. I require it to be white. Also, how do I turn that white part to...
test-img

Vidhi V

c++

opencv

mat

Votes: 0

Answers: 0

Converting 16 bit depth frame from Intel Realsense D455 to OpenCV Mat in Android Java

I am trying to convert a DepthFrame object that I have obtained from the Intel Realsense D455 camera to an OpenCV Mat object in Java. I can get the the target depth of a pixel using DepthFrame.getDist...
test-img

mcy

java

android

opencv

mat

realsense

Votes: 0

Answers: 1

Latest Answer

Even though not directly an OpenCV API solution, converting the byte array to short array in Java seems to work: public static Mat DepthFrame2Mat(final DepthFrame frame) { Mat frameMat = n...
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mcy

how to convert a mat converted dictionary(images) into pandas dataframe

I have converted a mat file into python dictionary. Now how can i convert this into Pndas data frame.
test-img

Shahed Islam

python

pandas

dataframe

mat

Votes: 0

Answers: 2

Latest Answer

Assuming you want to flatten the arrays: df = pd.DataFrame({k: v[0] for k,v in matdata.items()}) example: matdata = {'a': np.array([[1,2,3], [4,5,6]]), 'b': np.array([[7,8,9],[10,11,12]])} df = pd.D...
test-img

mozway

OpenCVSharp4 cant find function Mat.AT in vs2015

is my code but is can run in vs2019 but cant in vs2015 i use opencvsharp4 in vs2015 but i cant find Mat.At function but it run vs2019 on same code how i can use it in vs2015? // At<float&...
test-img

Ahn DAE YONG

c#

opencv

visual-studio-2015

visual-studio-2019

mat

Votes: 0

Answers: 0

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