Re: Convert jpg with quality not properly

Thank you for your reply. 

The golang binding (https://github.com/rainycape/magick) was not maintained for at least four years, and the binding use MagickCore api, and it call low api ImageToBlob with info{quality, format}.

Maybe I should try to change another golang binding.




> 在 2018年9月14日，上午3:43，Bob Friesenhahn <[email protected]> 写道：
> 
> On Wed, 12 Sep 2018, YongdeGe wrote:
> 
>> Hi, All:
>> 
>> Now, I do some work to handle images with GM golang binding: https://github.com/rainycape/magick <https://github.com/rainycape/magick>. When I convert jpg file with quality 70 use the library, the quality of the jpg file is 34. As while, when I set quality to 88, the jpg file’s real quality change to 70. But, I use the gm command to do the same things, the qualities are all right.
>> 
>> Can some body to help me?
> 
> This issue seems likely to be due to "ImageMagick bindings for Go" so I suggest that you persue an issue there first.
> 
> It sounds like some other parameter besides 'quality' is being passed as the quality.  This could be a binary interfacing issue.
> 
> Did you compile this binding yourself or did you find it precompiled?
> 
> Bob
> -- 
> Bob Friesenhahn
> [email protected], http://www.simplesystems.org/users/bfriesen/
> GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/_______________________________________________
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