From 9be7daec5c63c5a35d59e0033dbeb239e83625c1 Mon Sep 17 00:00:00 2001 From: Johnny Chen Date: Sat, 4 Jul 2020 10:45:11 +0800 Subject: [PATCH] use virtual zeroarray in demo --- docs/examples/spatial_transformation/image_diffview.jl | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/docs/examples/spatial_transformation/image_diffview.jl b/docs/examples/spatial_transformation/image_diffview.jl index 6181577b..f37c6615 100644 --- a/docs/examples/spatial_transformation/image_diffview.jl +++ b/docs/examples/spatial_transformation/image_diffview.jl @@ -28,8 +28,10 @@ plain_diffview = @. img - img_r nothing #hide #md # For gray images, a fancy trick is to fill each image into different RGB channels -# and make a RGB view -RGB_diffview = colorview(RGB, channelview(img), channelview(img_r), fill(0., size(img))) +# and make a RGB view. [`zeroarray`](@ref ImageCore.zeroarray) is a constant which +# serves as a placeholder to create a (virtual) all-zeros array of size that matches +# the other arguments. +RGB_diffview = colorview(RGB, channelview(img), channelview(img_r), zeroarray) nothing #hide #md # or convert the RGB view back to Gray image after that