| function | interpretation |
|---|---|
| cv.imread() | open image |
| cv.imwrite() | save image |
| img.shape | |
| cv.imshow(window_name, image) | |
| cv.waitKey(0) | waits until a key is pressed |
| cv.destroyAllWindows() | destroys the window showing image |
| cv.resize(src, dsize, interpolation) | dsize is tuple, interpolation |
| cv.blur(src, (kernel_size, kernel_siez)) | blur image using average blur |
| cv.GaussianBlur() | GaussianBlur |
| cv2.filter2D(img_src,-1,kernel) | filter |
| cv.putText() | |
| cv2.addWeighted(src1, alpha, src2, beta, gamma) | add two images |