[magick-users] Converting to RGBA Question.

[Fred Weinhaus]

If you are using Q16 IM, then the output will be upscaled to 16-bits, 
so add -depth 8


convert demo.jpg -channel rgba -matte -transparent black -depth 8 demo.rgba


>Hi All,
>
>I am still struggling to convert a JPG to rgba my command looks
>something like this
>
>convert demo.jpg -channel rgba -matte -transparent black demo.rgba
>
>Now my original file is 512x512 I would expect my output file to be 1M =
>512 x 512 x 4 (rgba)  however my file is 2M any ideas ?
>
>Cheers
>Chris Howell
>Software Engineer
>the PYXIS innovation
>Kingston, Ontario.
>w:www.pyxisinnovation.com