Opencv Imshow Resize Image. Only windows created without cv window autosize flag i e with cv window normal flag can be resized. Opencv is the end all be all for image processing.
Show numpy ndarray as image using opencv. 125 is the initial value so that we get a mid grey color. Image scaling is a process used to resize a digital image.
We initialize a numpy array of shape 300 300 3 such that it represents 300 300 image with three color channels.
Strengthen your foundations with the python programming foundation course and learn the basics. Opencv has a built in function cv2 resize but we will perform transformation using matrix multiplication as previously. The matrix used for scaling is shown below. Resizing an image can be done in many ways.