# Update existing imshow with new image data

**URL:** <https://discourse.julialang.org/t/update-existing-imshow-with-new-image-data/8296>\
**Category:** General Usage\
**Tags:** question, images, visualization\
**Created:** [January 11, 2018, 8:04pm UTC](https://discourse.julialang.org/t/update-existing-imshow-with-new-image-data/8296 "2018-01-11T20:04:48Z")\
**Posts on this page:** 1\
**Showing post:** 7

<div class="post-metadata">

**Author:** ![tshort](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tshort/32/43_2.png) [@tshort](https://discourse.julialang.org/u/tshort)\
**Post date:** [January 12, 2018, 3:15pm UTC](https://discourse.julialang.org/t/update-existing-imshow-with-new-image-data/8296/7 "2018-01-12T15:15:59Z")

</div>

Here’s a way with `ImageView.imshow`:

```julia
using ImageView, Images
img = rand(640,480)
guidict = ImageView.imshow(img)
canvas = guidict["gui"]["canvas"]
img2 = rand(640,480)
ImageView.imshow(canvas, img2)

```

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