如何将两级图像保存到朱莉娅文件中?

时间:2019-07-18 14:46:19

标签: julia binary-image

目标:如https://memorynotfound.com/convert-image-black-white-java/

所示,以双层格式保存图像

代码:

using Images, ImageView;

function save_as_binary_image(img_path::String, threshold::Float16)
    img_binary = load(img_path);
    img_binary = (Gray.(img_binary) .> threshold);
    imshow(img_binary);
    typeof(img_binary);#=>BitArray{2}
    save("/path/to/dest/image.png", img_binary);
    img_saved = load("/path/to/dest/image.png");
    imshow(img_saved);
    typeof(img_saved);#=>Array{Gray{Normed{UInt8,8}},2}
end

save_as_binary_image("/path/to/image/file", convert(Float16, 0.5));

将其另存为深度8的图像,但不保存为深度1的图像。

请指导我将双层图像保存到文件中!

1 个答案:

答案 0 :(得分:1)

我还不是Images.jl用户(也许很快),但是这有些起作用:

using Images, ImageView

function save_binary_image(img_path, threshold)
    img_binary = load(img_path)
    @info size(img_binary)
    tib = Gray.(Gray.(img_binary) .> threshold)
    save("$(img_path)-$(threshold).png", tib)
end

save_binary_image("/tmp/mandrill.png", 0.1)

也许您可以慢慢地修改它以做您想要的...

在REPL上工作非常有用,这样您就可以立即看到错误。