Cropping 2k to 1080

[robmason]

This is probably a dumb question. I have a 2k video shot on a GoPro. I’d like to crop into the subject area to 1920x1080 and use the clip in a 1080 video.

If I set video mode to 1080p, won’t this result in the 2k clip being downsampled? Would this result in my crop losing further resolution?

Thanks

[MusicalBox]

Hi @robmason

There may be better ways to do it, but this is how I do it.
My phone takes 3840 x 2160 videos.

1. First make sure Settings > Video Mode is not on Automatic. Use a setting of your choice, 1920x1080 at 30fps for example.

2. Then import your video in Shotcut.

3. When you move it to the timeline, apply a Size, Position & Rotate filter

4. Enter the size of your video in the two Size boxes

Using the filter’s settings, you can now move the video, resize it and rotate it by editing the parameters, or you can do the same directly in the preview window (personally I prefer that way). If the round handle tool in the preview screen is out of reach, use the zoom button bellow the preview screen to make the preview smaller.

Hope this helps
Sorry I can’t attach screen captures to these instruction for now, I’m not at home.

EDIT: Actually, here’s two screen recordings from another topic of the forum.

In the first one you have a demo of how the Size, Position & Rotate filter works.
Like moving the image by grabbing the round handle in the middle.

The second one is almost the same, but it show that instead of having to use the round handle to move the image, you just double click on it to be able to move the image by grabbing it from any point in the preview window. It also shows that you can use the mouse wheel to resize the image (up or down):

[robmason]

Thanks! I would have assumed that step 2 would result in the 2k video clip being downsampled to 1080, but I’ll give this method a try.

[MusicalBox]

After you import your video, select it and go to the Property tab. You’ll see that it’s still full resolution.

[shotcut]

@MusicalBox

When you move it to the timeline, apply a Size, Position & Rotate filter

This filter will always resample the video. It is better to use Crop: Source with the Center option for this task if you want to purely crop the extra pixels.

Crop: Source Video Filter

Crop: Source removes rows or columns of pixels from the edges of the source video or image before the image is scaled and padded to match the current Video Mode. When cropping, selection is centered to the Video Mode because padding is used to maintain the aspect ratio and prevent the image from appearing stretched or squished. Keyframes are not available with this filter. [image] This filter can only be applied to Source or a selected clip; it cannot be applied to a track or Output because th…

[robmason]

Thanks Dan - I’ll also give this a try.