diff options
Diffstat (limited to 'coders/jp2.c')
| -rw-r--r-- | coders/jp2.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/coders/jp2.c b/coders/jp2.c index 519499212..57bd3e2f3 100644 --- a/coders/jp2.c +++ b/coders/jp2.c @@ -1056,8 +1056,10 @@ static MagickBooleanType WriteJP2Image(const ImageInfo *image_info,Image *image, scale=(double) (((size_t) 1UL << jp2_image->comps[i].prec)-1)/ QuantumRange; - q=jp2_image->comps[i].data+(y/jp2_image->comps[i].dy* - image->columns/jp2_image->comps[i].dx+x/jp2_image->comps[i].dx); + q=jp2_image->comps[i].data+(ssize_t) (y*PerceptibleReciprocal( + jp2_image->comps[i].dy)*image->columns*PerceptibleReciprocal( + jp2_image->comps[i].dx)+x*PerceptibleReciprocal( + jp2_image->comps[i].dx)); switch (i) { case 0: |