Include more functionality such as displaying an array as Gray color

[roflmaostc]

Hi all!

as discussed on Slack with @mkitti and @johnnychen94 we could include an simshow (simple show) to show inline graphics in Pluto and Jupyter.

A draft is like here: https://github.com/roflmaostc/SimpleImageView.jl

function simshow(arr::AbstractArray{<:Real}; 
                 set_one=true, set_zero=false,
                 f = identity,
                 γ = 1)

    arr = set_zero ? arr .- minimum(arr) : arr
    arr = set_one ? arr ./ maximum(arr) : arr

    arr = f(arr) 

    if !isone(γ)
        arr .= arr .^ γ
    end

    Gray.(arr)
end

Should I prepare a PR for including the functionality to this package?

I can also try to include RGB for 3D arrays.

Best,

Felix

[roflmaostc]

Based in ColorSchemes.jl we could also use different colormaps, e.g. simshow(arr, cmap=:tableau_colorblind)

Would it be ok to introduce that dependency?

[johnnychen94]

I'm supportive of having an explicit method (that doesn't get implicitly called by Base.show) to support various usages, it might need some experiments to shape out a good interface that finds a good balance between versatility and convenience. Since this is a visualization helper tool that won't be used in multi-threaded scenarios (I think?), I'm also supportive of having a global variable to control the default behavior. And it doesn't necessarily need to be limited in one data input -- MosaicViews is a good helper to tile multiple inputs together.

we could include an simshow (simple show) to show inline graphics in Pluto and Jupyter.

imshow sounds like a better name to me 😆 . Luckily we haven't used this name yet.

Also cc @tlnagy who opened #41 and #43, maybe he's more interested in this.

[roflmaostc]

imshowis already used by ImageView.jl 😅