Open FifoIronton opened 7 months ago
Version: ImageMagick 6.9.10-23 Q16 x86_64 20190101 https://imagemagick.org, Ubuntu 20.04, x86_64
ImageMagick 6.9.10-23 Q16 x86_64 20190101 https://imagemagick.org
Example under https://legacy.imagemagick.org/Usage/masking/#bg_remove does not work. Downloading the example images, I expect the second command
convert overlay_difference.png -channel RGBA -separate +channel \ -evaluate-sequence add -threshold 0 overlay_mask.png
to output the image shown at https://legacy.imagemagick.org/Usage/masking/overlay_mask.png . Instead, I get a pure-white image. Editing the command to
convert overlay_difference.png -channel RGB -separate +channel \ -evaluate-sequence add -threshold 0 overlay_mask.png
generates the expected mask.
I cannot figure out where the source for the legacy Usage section of the website is hosted, but the corresponding page for the new site is found here: https://github.com/ImageMagick/Usage/blob/c6dc6493a7de33503a569f9236c2be2be3c64d38/masking/index.html#L2566
We corrected the documentation as you recommended. Thanks.
Version:
ImageMagick 6.9.10-23 Q16 x86_64 20190101 https://imagemagick.org
, Ubuntu 20.04, x86_64Example under https://legacy.imagemagick.org/Usage/masking/#bg_remove does not work.
Downloading the example images, I expect the second command
to output the image shown at https://legacy.imagemagick.org/Usage/masking/overlay_mask.png . Instead, I get a pure-white image. Editing the command to
generates the expected mask.
I cannot figure out where the source for the legacy Usage section of the website is hosted, but the corresponding page for the new site is found here: https://github.com/ImageMagick/Usage/blob/c6dc6493a7de33503a569f9236c2be2be3c64d38/masking/index.html#L2566