How do I change the size of an imported picture in an animation?

Question

My code right now plots a function, and animates an image moving along the curve of the function. I want to reduce the size of the image for this animation but I can't figure out how. If I try to change

image = Import["image.png"]

to

image = Import["image.png",ImageSize -> Tiny]

it just makes the image blurry in the animation. This is the animation code:

Animate[Plot[{f[z]}, {z, 0, 50}, 
  PlotRange -> {{0, 50}, {0, 10}}, 
  Epilog -> Inset[image, {x, f[x]}]], {x, 
  0, 30}]

Does anyone know how to fix this?

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Although this is dealing with an image, the actual focus lies on the Inset, which is discussed here:Scale Insetted Characters to Plot — Jens, Feb 18 '15 at 04:33
@Jens I think the selected duplicate is poor. Chat link: http://chat.stackexchange.com/transcript/message/20126893#20126893 — Mr.Wizard, Feb 18 '15 at 16:00

score 5 · Answer 1 · answered Feb 18 '15 at 03:18

5

Use the fourth parameter of Inset:

enter image description here

f = Sin[#] + 5 &;
image = ExampleData[{"TestImage", "Lena"}];

Animate[Plot[{f[z]}, {z, 0, 50}, PlotRange -> {{0, 50}, {0, 10}}, 
  Epilog -> Inset[image, {x, f[x]}, Automatic, 10]], {x, 0, 30}]

enter image description here

answered Feb 18 '15 at 03:18

Mr.Wizard

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kglr · Answer 2 · 2015-04-09T02:14:38.527

1

You can also use Show with the option ImageSize:

image = Show[ExampleData[{"TestImage", "Lena"}], ImageSize -> 40];
f = 5 + Sin[#] + Sin[Sqrt[2] #] &;

Animate[Plot[{f[z]}, {z, 0, 50}, PlotRange -> {{0, 50}, {0, 10}}, 
  Epilog -> Inset[image, {x, f[x]}]], {x, 0, 50}]

enter image description here

edited Apr 09 '15 at 02:14

answered Apr 09 '15 at 01:39

kglr

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How do I change the size of an imported picture in an animation?

2 Answers2