I have searched for similar questions, but haven't found anything helpful as most solutions use older versions of OpenCV. I have a 3D numpy array, and I would like to display and/or save it as a BGR image using OpenCV (cv2). As a short example, suppose I had: import numpy, cv2 b = numpy.zeros([5,5,3]) b[:,:,0] = numpy.ones([5,5])*64 b[:,:,1] = numpy.ones([5,5])*128 b[:,:,2] = numpy.ones([5,5])*192 What I would like to do is save and display b as a color image similar to: cv2.imwrite('color_img.jpg', b) cv2.imshow('Color image', b) cv2.waitKey(0) cv2.destroyAllWindows() This doesn't work, presumably because the data type of b isn't correct, but after substantial searching, I can't figure out how to change it to the correct one. If you can offer any pointers, it would be greatly appreciated! Continue reading...
