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I can achieve the following:

with the reshape command quite easy:

Mat a = Mat(5,1, CV_32FC3); //a is 5x1, 3 channels
Mat b = a.reshape(1); //b is 5x3, 1 channel

How about the opposite:

I was also trying with .reshape but I couldn't manage it. (bear with me but my brain is quite fried at the moment)

I can achieve the following:

with the reshape command quite easy:

Mat a = Mat(5,1, CV_32FC3); //a is 5x1, 3 channels
Mat b = a.reshape(1); //b is 5x3, 1 channel

How about the opposite:

I was also trying with .reshape but I couldn't manage it. (bear with me but my brain is quite fried at the moment)

I can achieve the following:

with the reshape command quite easy:

Mat a = Mat(5,1, CV_32FC3); //a is 5x1, 3 channels
Mat b = a.reshape(1); //b is 5x3, 1 channel

How about the opposite:

I was also trying with .reshape but I couldn't manage it. (bear with me but my brain is quite fried at the moment)

Update:

I have the following image where its channel is in one big image:

so what I want to do is take each part of the image (we know the dimensions) and put it in a different channel:

in order to get the final image:

I tried with the .reshape and what @LorenaGdl suggested or .reshape(3, image.rows) but I do not get the result I want grrrrrr (at grrrrrr, actually I am not sure if I can do that with the reshape. (by the way at the end I will be seeing nightmares with pink panthers.....:-) )

I can achieve the following:

with the reshape command quite easy:

Mat a = Mat(5,1, CV_32FC3); //a is 5x1, 3 channels
Mat b = a.reshape(1); //b is 5x3, 1 channel

How about the opposite:

I was also trying with .reshape but I couldn't manage it. (bear with me but my brain is quite fried at the moment)

Update:

I have the following image where its channel is in one big image:

so what I want to do is take each part of the image (we know the dimensions) and put it in a different channel:

in order to get the final image:

I tried with the .reshape and what @LorenaGdl suggested or .reshape(3, image.rows) but I do not get the result I want grrrrrr, actually I am not sure if I can do that with the reshape. (by the way at the end I will be seeing nightmares with pink panthers.....:-) panthers.....:-p )

I can achieve the following:

with the reshape command quite easy:

Mat a = Mat(5,1, CV_32FC3); //a is 5x1, 3 channels
Mat b = a.reshape(1); //b is 5x3, 1 channel

How about the opposite:

I was also trying with .reshape but I couldn't manage it. (bear with me but my brain is quite fried at the moment)

Update:

I have the following image where its channel is in one big image:

so what I want to do is take each part of the image (we know the dimensions) and put it in a different channel:

in order to get the final image:

I could do it with many ways but I thought that there should be a simple way to do it like using .reshape or something similar. Therefore, I tried with the .reshape and what @LorenaGdl suggested or .reshape(3, image.rows) but I do not get the result I want grrrrrr, actually I am not sure if I can do that with the reshape. (by the way at the end I will be seeing nightmares with pink panthers.....:-p )