How to make larger image from small identical images like mosaic

[dprenerov]

Hello,


I searched Google for this, but didn't found an answer.

I have a single png with alpha channel. Let's say 300x300 pixels.


So I need to produce a 1920x1080 pixels image which consists of multiple images like the small one. It should look like a mosaic. It is not important if 1920 can not be divided by 300 without a remainder. I need this image to be used as watermark adding to a video. So the important is to have small images clearly seen on the video, but transparent so to make the video not usable except for a preview.
So I have a single image which is OK to me, just don't know how to create larger image with alpha like a mosaic to be used for watermark.
Please help me with this.

[rich2005]

Copy your 300x300 image. Edit -> Copy

That then becomes the 'clipboard' pattern - the very first pattern shown.

Use that in your 1980x1080 canvas with the bucket fill tool. Use a transparent layer. For an image with transparency export as: .png / .gif / .tif all support transparency (sometimes depends on the video editor as to what can be used)

something like this 30 second demo: https://i.imgur.com/rvRB8qZ.mp4

sorry, could not resist it https://i.imgur.com/4KcJlZm.mp4

[dprenerov]

(09-24-2022, 02:22 PM)rich2005 Wrote: Copy your 300x300 image. Edit -> Copy

That then becomes the 'clipboard' pattern - the very first pattern shown.

Use that in your 1980x1080 canvas with the bucket fill tool. Use a transparent layer.  For an image with transparency  export as: .png / .gif / .tif all support transparency (sometimes depends on the video editor as to what can be used)

something like this 30 second demo: https://i.imgur.com/rvRB8qZ.mp4

sorry, could not resist it https://i.imgur.com/4KcJlZm.mp4

Thanks a lot. That's precisely what I need.

[sallyanne]

0r you could go into GMIC's 'arrays and tiles' and select regular. Choose how many tiles width x height.

[tmanni]

Or simply use Filters > Map > Tile...