CODEWITHSUNDEEP
pythonopencv
SirFruit
SirFruit

Reputation: 1

cv2 frame write file taking too much size

Screenshot:

enter image description here

Essentially I'm trying to make a folder with all the frames a video has, and editing it later in the code, however, I'm facing a problem of the file size of the img/frame being too high when saved which I have been trying to look into but I had no luck so far.

Any help will be appreciated!


VideoCap = cv2.VideoCapture("./Path/Path.mp4");

FolderPath = "./Path/Path";

if not os.path.exists(FolderPath):
    print(f"{FolderPath} doesn't exists. Creating...");
    os.makedirs(FolderPath);

    Success, Frame = VideoCap.read();
    Count = 0;

    while Success:
        cv2.imwrite(FolderPath+"/Frame%d.png" % Count, Frame); # The size is way too much! Literally 1/15th of the video just in a frame.
        print("Frame %d has been written" % Count);
        Count+=1;
        Success, Frame = VideoCap.read();
        if cv2.waitKey(1) & 0xFF == ord('q'):
            break
else:
    print(f"{FolderPath} already exists. Moving on...");

Upvotes: 0

Views: 312

Answers (1)

Ashish M J
Ashish M J

Reputation: 700

Use compression parameters while writing image. Refer the documentation

cv2.imwrite(filename, img,  [cv2.IMWRITE_PNG_COMPRESSION, compression_value])
#compression_value range 0-9

For PNG, it can be the compression level ( CV_IMWRITE_PNG_COMPRESSION ) from 0 to 9. A higher value means a smaller size and longer compression time. Default value is 3.

Upvotes: 1

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