Legacy ImageMagick Discussions Archive

Thank you, this is exactly what I needed.

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The perspective transform below takes me 0.13 seconds on my IM 6.9.3.8 Q16 Mac OSX running two cores. Only one command line for doing the image processing and I use +distort ... -layers merge +repage.

tl_bg="494,108"
tr_bg="579,118"
br_bg="579,197"
bl ...

Thanks, it reduced to about 0.6 seconds. Bulk of it is likely reading/writing the image.

convert image.png -background transparent +distort Perspective "1,1, 494,108 201,1 579,120 1, 201 494,183 201, 201 576,196" -compose DstOver -composite bg.png output.png

Except transparency doesn't work for ...

I'm still reading the documentation and trying to figure how I would achieve increasing canvas size while doing distort perspective with the following command:

convert image.jpg -background transparent -distort Perspective "1,1, 494,108 201,1 579,120 1, 201 494,183 201, 201 576,196" output.png ...

Thanks for input. I'll look into them now. In the meantime to clarify things:

You call that script once per frame, with the same BG and IMAGE in each frame, is that right?

No. BG is actually a frame of the video, so it changes each time. IMAGE doesn't change, but control points keep changing for ...

Hello,

My requirement is perspective rotating a user submitted image into a pre-rendered background image (which is actually required per frame on a video).

The easiest was to use ImageMagick and I wrote a very crude simple bash script to achieve what I needed as follows:

#!/bin/bash
# @author ...