# Feature display

**URL:** <https://discourse.julialang.org/t/feature-display/16657>\
**Category:** General Usage\
**Created:** [October 22, 2018, 11:13pm UTC](https://discourse.julialang.org/t/feature-display/16657 "2018-10-22T23:13:54Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![microlifecc](https://avatars.discourse-cdn.com/v4/letter/m/ed655f/32.png) [@microlifecc](https://discourse.julialang.org/u/microlifecc)\
**Post date:** [October 22, 2018, 11:13pm UTC](https://discourse.julialang.org/t/feature-display/16657/1 "2018-10-22T23:13:54Z")

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Hi guys, I have implemented SIFT features in Julia. But my feature point display isn’t very prominent. My result looks like:

 ![download](https://global.discourse-cdn.com/julialang/original/3X/2/c/2c76ccf552966b10bf9a8a2450dc0eb9afebbb83.png)

My display code:

```julia
function draw_points(image::AbstractArray, mask; c::Colorant=colorant"yellow")
    new_image = copy(uIn);
    new_image[mask] = c;
    return new_image;
end
draw_points(uIn, keypoints)

```

Can you guys help me make the display more prominent? Thanks!

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**Author:** ![dpsanders](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/dpsanders/32/3573_2.png) [@dpsanders](https://discourse.julialang.org/u/dpsanders)\
**Post date:** [October 23, 2018, 12:50am UTC](https://discourse.julialang.org/t/feature-display/16657/2 "2018-10-23T00:50:57Z")

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Use a 2x2 or 3x3 block of pixels instead of a single one?

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<div class="post-metadata">

**Author:** ![tim.holy](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tim.holy/32/52_2.png) [@tim.holy](https://discourse.julialang.org/u/tim.holy)\
**Post date:** [October 23, 2018, 1:28am UTC](https://discourse.julialang.org/t/feature-display/16657/3 "2018-10-23T01:28:01Z")

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> I have implemented SIFT features in Julia

See also [ImageFeatures](https://github.com/JuliaImages/ImageFeatures.jl).