Re: GraphicsMagick gives wrong output when converting GIF to PNG

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On Fri, May 26, 2017 at 6:30 PM, Bob Friesenhahn <
[email protected]> wrote:

> Bugs may be reported via the SourceForge page at
> https://sourceforge.net/p/graphicsmagick/bugs/.  I think that you will
> log into your SourceForge account and use the "Create Ticket" button on
> that page.
>
> It is wise to verify that the problem occurs with the current release
> since we can't fix old releases.
>

The problem does happen in the current release, which is the one I've
recently compiled to verify the bug. I've posted the configuration options
in the bug report. Thanks for the link!

I would guess that the image will be ok if you write to any other format
> and that the issue is related to the PNG writer.
>
> What version of GraphicsMagick are you using?


GM does give the correct output for other formats. It only breaks with PNG.

Thanks again,

CAIO FREITAS DE OLIVEIRA
Developer @ Agile Content BR SP
Mobile: +55 11 97123 1211

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S=C3=A3o Paulo - Brazil

Rua Alexandre Dumas, 1658 conjunto n=C2=BA 51

Santo Amaro 04717-004

Phone: +55 11 3045 5010



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<div dir=3D"ltr"><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">=
On Fri, May 26, 2017 at 6:30 PM, Bob Friesenhahn <span dir=3D"ltr">&lt;<a h=
ref=3D"mailto:[email protected]" target=3D"_blank">bfriesen@simp=
le.dallas.tx.us</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" =
style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);pa=
dding-left:1ex">Bugs may be reported via the SourceForge page at <a href=3D=
"https://sourceforge.net/p/graphicsmagick/bugs/" rel=3D"noreferrer" target=
=3D"_blank">https://sourceforge.net/p/grap<wbr>hicsmagick/bugs/</a>.=C2=A0 =
I think that you will log into your SourceForge account and use the &quot;C=
reate Ticket&quot; button on that page.<br>
<br>
It is wise to verify that the problem occurs with the current release since=
 we can&#39;t fix old releases.<br></blockquote><div><br></div><div>The pro=
blem does happen in the current release, which is the one I&#39;ve recently=
 compiled to verify the bug. I&#39;ve posted the configuration options in t=
he bug report. Thanks for the link!</div><div><br></div><blockquote class=
=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rg=
b(204,204,204);padding-left:1ex">
I would guess that the image will be ok if you write to any other format an=
d that the issue is related to the PNG writer.<br>
<br>
What version of GraphicsMagick are you using?</blockquote><div><br></div><d=
iv>GM does give the correct output for other formats. It only breaks with P=
NG.</div><div><br></div><div>Thanks again,</div><div><br></div><div><div><d=
iv class=3D"gmail_signature"><div dir=3D"ltr"><div class=3D"gmail_signature=
"><div dir=3D"ltr"><p dir=3D"ltr" style=3D"font-size:12.8px;line-height:1.3=
8;margin-top:0pt;margin-bottom:0pt"><span style=3D"font-size:13.3333px;font=
-family:&quot;Trebuchet MS&quot;;color:rgb(0,0,0);font-weight:700;vertical-=
align:baseline">CAIO FREITAS DE OLIVEIRA</span></p><span style=3D"font-size=
:12px;font-family:&quot;Trebuchet MS&quot;;color:rgb(102,102,102);vertical-=
align:baseline"><span style=3D"font-size:13.3333px;color:rgb(0,0,0);vertica=
l-align:baseline">Developer @ Agile Content BR SP<br></span>Mobile: +55 11 =
97123 1211</span></div></div></div></div></div></div></div></div></div>

<br>
<br><div dir=3D"ltr" style=3D"margin-left:0pt"><table style=3D"border:none;=
border-collapse:collapse"><colgroup><col width=3D"114"><col width=3D"412"><=
/colgroup><tbody><tr style=3D"height:0px"><td style=3D"border-left:solid #0=
00000 0px;border-right:solid #000000 0px;border-bottom:solid #000000 0px;bo=
rder-top:solid #000000 0px;vertical-align:top;padding:7px 7px 7px 7px"><p d=
ir=3D"ltr" style=3D"line-height:1.38;margin-top:0pt;margin-bottom:0pt"><spa=
n style=3D"font-size:14.666666666666666px;font-family:Arial;color:#000000;b=
ackground-color:transparent;font-weight:400;font-style:normal;font-variant:=
normal;text-decoration:none;vertical-align:baseline"><img src=3D"https://lh=
5.googleusercontent.com/QIVLxioJ2ScZyvrKQi7emkwN2q55GD2WQmOsEe-g8SyS41SjObL=
tQav-nYIm0pE7flSNYn0Cz9O8u6RIS_Pmin1Mv4u5DHJ1gn9ye0aaMV9Vj2S4R2oqmf3OD8a7a-=
_BIGy1vok" style=3D"border:none" width=3D"102" height=3D"49"></span></p></t=
d><td style=3D"border-left:solid #000000 0px;border-right:solid #000000 0px=
;border-bottom:solid #000000 0px;border-top:solid #000000 0px;vertical-alig=
n:top;padding:7px 7px 7px 7px"><p dir=3D"ltr" style=3D"line-height:1.38;mar=
gin-top:0pt;margin-bottom:0pt"><span style=3D"font-size:12px;font-family:&#=
39;Trebuchet MS&#39;;color:#666666;background-color:#ffffff;font-weight:700=
;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:=
baseline">S=C3=A3o Paulo - Brazil</span></p><p dir=3D"ltr" style=3D"line-he=
ight:1.38;margin-top:0pt;margin-bottom:0pt"><span style=3D"font-size:12px;f=
ont-family:&#39;Trebuchet MS&#39;;color:#666666;background-color:#ffffff;fo=
nt-weight:400;font-style:normal;font-variant:normal;text-decoration:none;ve=
rtical-align:baseline">Rua Alexandre Dumas, 1658 conjunto n=C2=BA 51<br></s=
pan></p><p dir=3D"ltr" style=3D"line-height:1.38;margin-top:0pt;margin-bott=
om:0pt"><span style=3D"font-size:12px;font-family:&#39;Trebuchet MS&#39;;co=
lor:#666666;background-color:#ffffff;font-weight:400;font-style:normal;font=
-variant:normal;text-decoration:none;vertical-align:baseline">Santo Amaro 0=
4717-004</span></p><p dir=3D"ltr" style=3D"line-height:1.38;margin-top:0pt;=
margin-bottom:0pt"><span style=3D"font-size:12px;font-family:&#39;Trebuchet=
 MS&#39;;color:#666666;background-color:#ffffff;font-weight:400;font-style:=
normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Ph=
one: </span><span style=3D"font-size:12px;font-family:&#39;Trebuchet MS&#39=
;;color:#1155cc;background-color:#ffffff;font-weight:400;font-style:normal;=
font-variant:normal;text-decoration:none;vertical-align:baseline">+55 11 30=
45 5010</span></p><p dir=3D"ltr" style=3D"line-height:1.38;margin-top:0pt;m=
argin-bottom:0pt"><br></p></td></tr></tbody></table></div>
<br>
<span style=3D"font-size:10.666666666666666px;font-family:Arial;color:#8080=
80;background-color:#ffffff;font-weight:400;font-style:normal;font-variant:=
normal;text-decoration:none;vertical-align:baseline">This e-mail message, i=
ncluding any attachments, is for the sole use of the person to whom it has =
been sent, and may contain information that is confidential or legally prot=
ected. If you are not the intended recipient or have received this message =
in error, you are not authorized to copy, distribute, or otherwise use this=
 message or its attachments. Please notify the sender immediately by return=
 e-mail and permanently delete this message and any attachments. Agile Cont=
ent makes no warranty that this e-mail is error or virus free. </span>
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