[Pkg-gmagick-im-team] Bug#837778: pnm image dissolves into unsynchronised garbage when rotated 180

[Bastien ROUCARIES]

I prepare a ew version.

Could you merge this bug with other ones citing problem with gscan2pdf?

On Wed, Sep 21, 2016 at 9:31 AM, Gerry Butler <butler.gerry.a at gmail.com> wrote:
> The following command produced an un-synchronised image:
>
> convert 1Ay0lSAB3d-pre.pnm -rotate 180 1Ay0lSAB3d-post.pnm
>
> Pre and post files are attached.
>
> This is a serious problem for me, as I use gscan2pdf as my scanner
> interface, and it apparently uses pnm format and imagemagick for most
> operations on scanned images.  The problem also occurs with other
> operations, eg, crop.
>
> It doesn't always happen. For example, rotate 90 and rotate 270 are OK, and
> it doesn't always happen with crop.
>
> It started happening only recently, I believe with 8:6.8.9.9-5+deb8u4.
>
>
>