[magick-users] How to convert colorspace from "YUV" to "RGBA"?

[Zhaoyang Guo]

Thank you for your reply.

Regards,

-- 
Zhaoyang GUO
Sigma Designs Europe

4, rue Ferrus
75014 Paris, France


Fred Weinhaus wrote:
> In principle, just
>
> convert image.jpg -channel rgba -alpha on -colorspace yuv output.png
>
> you need png or gif for output or some format 
> that will save alpha channel. But as jpg does not 
> support alpha channel, you will just get an 
> opaque image as the result anyway.
>
>
> see
> http://www.imagemagick.org/script/command-line-options.php#colorspace
> http://www.imagemagick.org/script/command-line-options.php#alpha
> http://www.imagemagick.org/script/command-line-options.php#channel
> http://www.imagemagick.org/Usage/basics/#alpha
> http://www.imagemagick.org/Usage/channels/
>
>
>
>   
>> Dear expertsÅC
>>
>> I'm writing to ask how to convert *.jpg picture from YUV colorspace to
>> RGBA colorspace?
>>
>> Thank you for your help.
>>
>> Zhaoyang GUO
>>
>> --
>> Sigma Designs Europe
>>
>> 4, rue Ferrus
>> 75014 Paris, France
>>     
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