First time in this community. I am new to illustrator as I come from a science and research background. I extract this image directly from MATLAB in eps to export it to illustrator and probably because of the way MATLAB treats images, the shape is divided by two as you can see in the image. The colorbar is an automatic object that comes out of a certain programming in the app, is not something I draw. The thing is the colorbar object is cut in half and I would like to merge. I have tried the pathfinder>merge option and it says it does not produce any results.

I would appreciate any help.


Overlapping antialiasing

Entire image

UPDATE: This is the same problem but with other type of object I have when I deal with brain activation images from the same app. It automatically segments the object. It looks like it's an image although it saves it in eps. I'd like to know how to tell illustrator it's just an object and to not separate it so it doesn't have to antialias the edges and display the white line showed in the colormap bar (which also happens in the topography object).

Brain activation topography

  • 1
    Is the graph an image inside of an EPS file or is the graph a vector? Looks like an image to me. path finder -> merge should work for what you're trying to do if the graph was a vector.
    – AndrewH
    Jan 14, 2021 at 17:48
  • @andrew is right but the tick marks look like they might be a separate shape component. You might need to release compound path first to avoid merge problems and then reorder the layers to put the tick marks back on top.
    – Rykara
    Jan 14, 2021 at 17:54
  • 2
    I would redraw this in Illustrator. It's a simple gradient, blend for the tick marks, and type.
    – Scott
    Jan 14, 2021 at 19:37
  • Release the clipping mask?
    – joojaa
    Jan 15, 2021 at 4:58
  • @AndrewH I guess its an image and this is why this is not working the merge, still the cut of the image comes as I import it to illustrator, I make no modifications from MATLAB output, it seems to import it automatically this way. Jan 15, 2021 at 8:29

1 Answer 1


I'd like to know how to tell illustrator it's just an object

You can link the file by going to File -> Place (Shift+CTRL+P). A new window will open where you can choose the image. Make sure the "Link" checkbox is checked.

  • It actually does the same thing once the image is embedded. Thanks anyway. Jan 20, 2021 at 9:34

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