c++ - how to fill color into image, by considering small matrix size 3*3 or 6*6? in opencv -


Considering the small matrix of 3 * 3, how can I fill the necessary picture color of type, But the correct answer could not be found to apply, I hope thanks in advance, or people can help better, otherwise if possible, upload some links.

What type of VAT can I fill the required image?

If you want to change the value of mat image, you can do it as follows:

  • grayscale ( 8UC1 ): 

      uchar intensity = Img.at & lt; Uchar & gt; (Y, x) = value_you_want_to_fill;    
  •  
     Color image (the default format given by  BGR  color sequence,  imread ):    img.at

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