Python cv2.ROTATE_90_COUNTERCLOCKWISE Examples

The following are 2 code examples of cv2.ROTATE_90_COUNTERCLOCKWISE(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module cv2 , or try the search function .
Example #1
Source File: visualization.py    From simple-HRNet with GNU General Public License v3.0 6 votes vote down vote up 
def check_video_rotation(filename):
    # thanks to
    # https://stackoverflow.com/questions/53097092/frame-from-video-is-upside-down-after-extracting/55747773#55747773

    # this returns meta-data of the video file in form of a dictionary
    meta_dict = ffmpeg.probe(filename)

    # from the dictionary, meta_dict['streams'][0]['tags']['rotate'] is the key
    # we are looking for
    rotation_code = None
    try:
        if int(meta_dict['streams'][0]['tags']['rotate']) == 90:
            rotation_code = cv2.ROTATE_90_CLOCKWISE
        elif int(meta_dict['streams'][0]['tags']['rotate']) == 180:
            rotation_code = cv2.ROTATE_180
        elif int(meta_dict['streams'][0]['tags']['rotate']) == 270:
            rotation_code = cv2.ROTATE_90_COUNTERCLOCKWISE
        else:
            raise ValueError
    except KeyError:
        pass

    return rotation_code
Example #2
Source File: pipeline_utils.py    From simple-camera-pipeline with MIT License 5 votes vote down vote up 
def fix_orientation(image, orientation):
    # 1 = Horizontal(normal)
    # 2 = Mirror horizontal
    # 3 = Rotate 180
    # 4 = Mirror vertical
    # 5 = Mirror horizontal and rotate 270 CW
    # 6 = Rotate 90 CW
    # 7 = Mirror horizontal and rotate 90 CW
    # 8 = Rotate 270 CW

    if type(orientation) is list:
        orientation = orientation[0]

    if orientation == 1:
        pass
    elif orientation == 2:
        image = cv2.flip(image, 0)
    elif orientation == 3:
        image = cv2.rotate(image, cv2.ROTATE_180)
    elif orientation == 4:
        image = cv2.flip(image, 1)
    elif orientation == 5:
        image = cv2.flip(image, 0)
        image = cv2.rotate(image, cv2.ROTATE_90_COUNTERCLOCKWISE)
    elif orientation == 6:
        image = cv2.rotate(image, cv2.ROTATE_90_CLOCKWISE)
    elif orientation == 7:
        image = cv2.flip(image, 0)
        image = cv2.rotate(image, cv2.ROTATE_90_CLOCKWISE)
    elif orientation == 8:
        image = cv2.rotate(image, cv2.ROTATE_90_COUNTERCLOCKWISE)

    return image