how can i use detectHarrisFeatures between image and video

this code is between tow image i need between image and video

points1 = detectHarrisFeatures(I);
points2 = detectHarrisFeatures(F);

[features1, valid_points1] = extractFeatures(I, points1);
[features2, valid_points2] = extractFeatures(F, points2);

indexPairs = matchFeatures(features1, features2);

matched_points1 = valid_points1(indexPairs(:, 1), :);
matched_points2 = valid_points2(indexPairs(:, 2), :);

figure; showMatchedFeatures(I, frame, matched_points1, matched_points2);

Answer 1

[Walter Roberson]

It is not possible to work directly with videos. Instead, you have to read (or capture) a frame of the video at a time. The frame of the video is an image, so you can just assign that image to the appropriate variable name and use your existing code.

[mh sarah]

yes i knows but the video has a lot of frame how can i make do it whith all the frame and extract the frame with have a lot of interested point similar

[Walter Roberson]

Use a loop. You can see an example at https://www.mathworks.com/help/vision/ref/vision.videofilereader-class.html#btdysrx