| 52 | cur_str_mode = str_modes.next() |
| 53 | |
| 54 | def update(dummy=None): |
| 55 | sz = cv2.getTrackbarPos('op/size', 'morphology') |
| 56 | iters = cv2.getTrackbarPos('iters', 'morphology') |
| 57 | opers = cur_mode.split('/') |
| 58 | if len(opers) > 1: |
| 59 | sz = sz - 10 |
| 60 | op = opers[sz > 0] |
| 61 | sz = abs(sz) |
| 62 | else: |
| 63 | op = opers[0] |
| 64 | sz = sz*2+1 |
| 65 | |
| 66 | str_name = 'MORPH_' + cur_str_mode.upper() |
| 67 | oper_name = 'MORPH_' + op.upper() |
| 68 | st = cv2.getStructuringElement(getattr(cv2, str_name), (sz, sz)) |
| 69 | res = cv2.morphologyEx(img, getattr(cv2, oper_name), st, iterations=iters) |
| 70 | |
| 71 | draw_str(res, (10, 20), 'mode: ' + cur_mode) |
| 72 | draw_str(res, (10, 40), 'operation: ' + oper_name) |
| 73 | draw_str(res, (10, 60), 'structure: ' + str_name) |
| 74 | draw_str(res, (10, 80), 'ksize: %d iters: %d' % (sz, iters)) |
| 75 | cv2.imshow('morphology', res) |
| 76 | |
| 77 | cv2.namedWindow('morphology') |
| 78 | cv2.createTrackbar('op/size', 'morphology', 12, 20, update) |