Oh, and here's a version that uses expression substitution, so it will work
regardless of the original resolution:
oiiotool in.exr --crop "{TOP.width+20}x{TOP.height+20}-10-10" --origin +0+0
--fullpixels -o out.exr
> On Sep 13, 2021, at 11:49 AM, Larry Gritz <l...@larrygritz.com> wrote:
>
> Let's say you have a 1920x1080 image and want 10 pixels of padding all
> around. Assuming you want to offset the current image,
>
> oiiotool in.exr --crop 1940x1100-10-10 --origin +0+0 --fullpixels -o out.exr
>
> So this means:
> * Read in.exr
> * --crop : Adjust the data window to be 1940x1100 with its origin at -10,-10
> -- note that when "crop" specifies a bigger window than before, it pads with
> black.
> * --origin : The existing pixels stayed where they were and we have
> "overscan" now, so assuming we want the new origin to be at 0,0, we set that
> explicitly.
> * --fullpixels : make sure the "display window" is set to match the data
> window.
> * output the new image
>
> Now, if you want the existing image pixels in the data window to remain where
> they are, but you want to add black padding around it (and are ok with
> "overscan"), then just leave out the --origin part.
>
>
>
>> On Sep 13, 2021, at 11:19 AM, Larry Gritz <l...@larrygritz.com
>> <mailto:l...@larrygritz.com>> wrote:
>>
>> Do you want to just grow the pixel/data window with black padding around the
>> image, possibly ending up with "overscan" data? Or do you want to *offset*
>> and then pad, so the corner of the new padded image is still at (0,0)?
>>
>>
>>> On Sep 13, 2021, at 11:03 AM, Steven Caron <car...@gmail.com
>>> <mailto:car...@gmail.com>> wrote:
>>>
>>> Hi
>>>
>>> Maybe I am being dense but I can't seem to figure out how to use oiiotool
>>> to pad an image with x number of pixels on the bottom of the image. Or
>>> padding it x number of pixels in any direction or all directions for that
>>> matter. I have tried, fit and crop but I am not able to figure it out. Any
>>> pointers?
>>>
>>> Thanks,
>>> Steven
>>
>>
>
> --
> Larry Gritz
> l...@larrygritz.com <mailto:l...@larrygritz.com>
>
>
>
>
--
Larry Gritz
l...@larrygritz.com
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